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Hey everyone, and welcome to the
Doctors of Running podcast where

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we, a group of doctors of 
physical therapy, talk about the

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art and the science of the 
things that we put on our feet. 

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Today we have Doctor Sloss and 
myself, Matt, Doctor Klein, 

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whatever you want to call me. 
And we have a very special topic

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that I think the whole team 
takes to heart. 

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But I'm curious to know what all
of you think with this. 

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And we'll have a little question
for you at the beginning. 

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But Doctor Salaz, how, how 
relevant do you think this this 

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topic is before we tell them 
what it is? 

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Although they probably just read
the tagline, so they already 

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know what this is. 
Yeah, there's a good chance they

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probably already know what 
they're signing up for, but. 

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Surprise ruin. 
But I think it's pretty 

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important because I think it 
does have direct implications on

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both standing and moving 
postures and walking, running, 

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et cetera, which is what we 
talked about. 

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So I think it's definitely 
relevant. 

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So we are going to talk about 
heel bevels, which you may have 

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guessed either from listening or
probably reading the title of 

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this video podcast, whatever 
your whatever medium you're 

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going through. 
And we do talk about heel bevels

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a lot, especially me because I 
tend to be very sensitive as a 

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pretty aggressive heel striker 
as to what's happening at the 

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back of the shoe. 
But we finally decided to go, 

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hey, let's sit down and talk 
about this and not just talk 

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about it for running shoes, but 
also walking and kind of explain

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why we talk about it. 
The purpose of this thing, why 

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you should even bother having in
this, and then talk about some 

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examples and how this can change
and how the individual factors 

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both in the person and the shoe 
might influence this stuff. 

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So, David, would you mind 
starting us off on a definition 

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of what a heel bevel is? 
Yeah, I think a great way to 

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think about it is thinking about
what a bevel is, First off. 

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And so essentially like what a 
bevel is, is a rounding of an 

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edge. 
And so whether you're using some

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kind of a tool or like you're 
curbing something or whatever it

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is, in this case, it's a shoe 
and it's the heel. 

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And so it's, it's the rounding 
of the platform at the heel. 

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And one of the main reasons why 
they put that there is to kind 

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of mimic our human anatomy and 
kind of optimize movement 

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through the rear foot. 
And should I go into that right 

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now? 
Yeah, go for it, definitely. 

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But yeah, basically when we're 
walking and going through the 

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gate cycle, most people, like we
always say that this word 

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pronation kind of gets 
demonized, but it's kind of a 

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natural part of shock absorption
and how we walk. 

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And most people when they extend
their leg out in front of them, 

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they're going to land on their 
heel. 

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And usually it's going to be 
slightly off to the side on the 

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outside side of it, and they'll 
kind of roll downwards and 

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they'll roll inwards. 
And that's that pronation moment

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for shock absorption. 
Eventually as they get into 

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their forefoot, they that 
midfoot will tighten up, they'll

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re supinate and they'll kind of 
create a stiff lever arm to push

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off of through their great toe 
and or if they have a Morton's 

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toe, the second toe. 
But in some cases, but 

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nonetheless, that is essentially
the process. 

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And so when they design A heel 
bevel or put it into a shoe, the

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idea is to essentially mimic 
that movement and help ease that

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pathway and in some ways kind of
recreate the rounding that you 

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might see in the heel rocker of 
your calcaneus. 

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So. 
At least they're supposed to 

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design it like that. 
That's a, that's a yeah, yeah, 

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yeah. 
The other thing. 

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So Doctor Sloss is talking about
how there is multiple planes of 

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motions that are involved with 
how you design A heel bubble and

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why it is. 
So. 

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He mentioned that most people, 
and we get this question all the

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time, you know, hey, I see I'm 
landing on the outside of the 

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heel and there's some wear on 
the post, your lateral side. 

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That's totally normal. 
People typically tend to land on

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the lateral post, your lateral 
side of the heel. 

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They roll inwards and typically 
there's a movement pathway 

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that's going generally toward 
the first or second toe 

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depending on how things go with 
some variation there. 

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So that's adding a little bit 
of, as I keep hitting my 

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computer and people could see me
bouncing. 

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That's a little bit of like 
diagonal and frontal plane side 

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to side stuff. 
But when you get in the pure 

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sagittal plane front to back, 
the reason we generally suggest 

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that the heel be beveled. 
Most companies do this is 

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because your heel bone is also 
rounded, and the purpose of that

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rounding is actually to make 
gait more efficient when you're 

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walking. 
If you landed on a jagged heel, 

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it would pivot your foot forward
really quickly. 

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And if you have really fast 
motions like that, that's more 

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force, that's more energy to 
control your foot slapping down 

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on the ground when you hit the 
when you make initial contact. 

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OK, that puts a lot of pressure 
through some of the muscles on 

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the front of your leg, like your
anterior tibialis, some of your 

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extensor muscles. 
Very common for people with 

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shoes that don't have a great 
bevel. 

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When they start running, some 
people might notice some shin 

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splin type pain. 
Yeah, the muscles are working 

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really hard because they're a 
very strong pull on eccentric 

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force to control that motion 
down. 

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Now that takes a lot of energy, 
OK. 

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If you round the heel, which 
your heel bone naturally does, 

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it actually makes your gait more
efficient and naturally rolls 

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you for, which saves energy and 
reduces the amount of force you 

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need to control that motion 
downwards and reduces stress 

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there as well. 
This is very effective in 

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walking and heel strikers for 
runners. 

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The other reason that this is 
really, really, really important

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is because when you start 
getting a shoe higher and higher

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on the off the ground, So I 
would say minimal shoes don't 

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really need a bevel because 
they're so close and there's 

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typical rounding anyway. 
When you get these maximal 

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shoes, you want to still 
maintain this thing called the 

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heel rocker. 
So that natural curve actually 

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has that efficient that the 
efficiency it gives you as a 

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name called the heel rocker 
because it helps Rock You 

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forwards. 
Now, if you take that away, it 

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often times increases the energy
cost of gates from that place. 

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It's the same thing. 
There's a heel, midfoot and four

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foot rocker. 
Each one of these things make 

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you more efficient and there are
parts of your anatomy that do 

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that. 
You take them away. 

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It increases the energy cost of 
locomotion and gate. 

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So it's not just a hey, this is 
a more comfortable thing. 

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It's also something that makes 
you more efficient naturally. 

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Goodness that it better myself. 
Yeah, well, we team effort on 

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this do well. 
So we kind of talked about what 

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it is, what the purpose is, 
right? 

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It's to help make gait both more
efficient as well as more 

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comfortable. 
Because you might have 

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experienced like a dress shoe is
a great example because they 

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typically don't have a good 
bevel and you'll notice they're 

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like really stiff when you land 
on the heel, it's kind of slappy

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doesn't feel very good. 
It just helps smooth that out. 

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We will talk about there are 
some cases you in certain unique

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populations you may not want 
that, but for the majority of 

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people it really is something 
that works with the anatomy. 

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So are there any other reasons 
you can think of that we that we

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might really be helpful is to 
have a heel bevel in the shoe? 

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Yeah. 
I mean, we've talked about it 

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with some special considerations
before with those that either 

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have that, that have some kind 
of a need for a rocker design. 

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Because usually if they're 
implementing a heel bevel, more 

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often than not, there's usually 
some kind of a four foot rocker 

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implemented in the shoe as well 
to essentially give you a rocker

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profile. 
That would kind of go a little 

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bit off the topic of the 
conversation. 

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But like special considerations 
for people that may have, you 

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know, like stiff ankles and they
can't move through the entire 

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range and maybe they need a 
little bit of help getting over 

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it or stiff great toes, 
etcetera, etcetera. 

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Those types of more orthopedic 
in nature type things or if they

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have some kind of a neurologic 
issue where they just literally 

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can't move through a certain in 
in a certain pathway and maybe 

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that helps them facilitate some 
of the gait in the movement and 

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getting that literal rocker 
profile going on their own body.

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That's great. 
I'm also trying to think we kind

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of touched on a lot of stuff and
the accelerated paths were kind 

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of my outline was, but that's OK
David hit some really good 

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points there. 
The group that I often think 

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about when I'm not thinking 
about just comfort level of a 

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shoe, especially personally, I'm
also thinking of those people 

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that maybe have some pathology 
or some kind of irritation where

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a bevel tends to reduce that 
load. 

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So I mentioned shin splints is 
like the is like calling is like

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the low back pain of the lower 
extremity. 

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It's a really general catch all 
term. 

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It doesn't tell you kind of what
tissues actually irritated what.

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Especially for new runners or 
runners that have sensitivity in

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the anterior shin, this really 
reduces load in that area, can 

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make it much easier to get 
forward rather than having that 

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really slapping kind of 
sensation. 

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It's also really important for 
gait in terms of efficiency. 

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So if you're a longer distance 
runner, you're a longer distance

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athlete. 
This is really important because

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typically as you slow down, as 
you, as the distance of the 

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event increases, it is very 
natural to end up more on your 

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heel. 
It's more economical. 

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I, this is not a heel versus 
forefoot debate. 

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There's research on this, that 
you go shorter, faster. 

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People tend to be more on the 
front of their foot in terms of 

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initial contact. 
As you go longer, people 

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typically tend to land more on 
the heel. 

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So it's also, you know, just 
making the shoe more efficient 

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for longer periods. 
But the comfort is probably one 

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of the biggest things for me 
personally and reducing that 

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load on some of those muscles in
the front. 

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And so shin, you know, shin 
splint, tight pain is super 

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common, super common in newer 
runners. 

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So when people ask us about 
this, one of the biggest things 

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I suggest is make sure if you're
getting a new shoe, doesn't have

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to be the most expensive thing, 
but look for that bevel. 

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The other thing that the bevels 
can actually do that David 

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actually mentioned quite a while
ago already was talking about 

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how it can influence some of the
frontal planar side to side 

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stuff. 
So if you have a good 

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posterolateral bevel, it can 
really change how quickly you 

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either pronate or don't. 
Because if you don't have one 

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and you have a lot of what's 
called a lateral flare. 

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And for those looking, I've got.
What's a good example? 

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Do we have a good example of? 
This have a lateral flare. 

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Yeah, I'm going to bring up the 
two. 

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Trainer has some, yeah. 
I didn't. 

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I mean, I think that was not 
that bad. 

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But you know what I want to 
bring up Mount to Coast who I've

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been enjoying the the P1, which 
is their stability shoe. 

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You can see the sole kind of 
comes for those of you watching 

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on this, the sole kind of pops 
out the side. 

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And so when you have that 
happen, when you land on that 

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posterolateral side, it's going 
to pivot you inwards more, 

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right? 
Increases the lever arm. 

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There's a greater moment that 
kind of drives you in there. 

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So you're going to get pushed 
inwards faster with more force 

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to get through this, this 
greater motion. 

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So that might accelerate how 
much you go in that direction. 

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For somebody that actually needs
to learn to pronate, that 

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actually might be great. 
For the rest of us, like myself,

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we're really sensitive that that
might not be very good. 

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And their shoes that are 
supposed to be stability shoes 

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that because they have that all 
of a sudden because there's that

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excessive lateral flare and not 
enough that not post your 

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lateral bevel can be a little 
challenging. 

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We were talking, one of the 
things that actually spurred 

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this conversation on was talking
about the hocus sky flow where 

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it's supposed to have this nice 
bevel and they actually have a 

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pretty solid lateral flare on 
this. 

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And even though there is like, I
don't know, David, does this 

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look like a posterolateral 
flare? 

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I cannot tell. 
Like I've been looking at this 

227
00:11:04,120 --> 00:11:05,200
instead I'm. 
Like is it? 

228
00:11:05,920 --> 00:11:07,640
What is it? 
Because it it the shoe is 

229
00:11:07,640 --> 00:11:09,800
supposed to have a good bevel, 
but it ends up like I kind of 

230
00:11:09,800 --> 00:11:12,320
land weirdly on it and it 
pitches me in inward. 

231
00:11:12,840 --> 00:11:14,320
Yeah. 
It almost kind of has like a 

232
00:11:14,320 --> 00:11:17,400
little bit of a wedge like feel 
to it, right where there's like 

233
00:11:17,400 --> 00:11:19,960
almost like a slight disposition
to kind of shift you. 

234
00:11:20,400 --> 00:11:23,280
Yeah. 
And I think that is an 

235
00:11:23,280 --> 00:11:25,720
interesting shoe to bring up 
specifically because I actually 

236
00:11:25,720 --> 00:11:30,760
really like the shoe. 
But I do agree the the bevel is 

237
00:11:30,760 --> 00:11:35,680
much like more gradual and it's 
much earlier and you're 

238
00:11:35,680 --> 00:11:39,560
definitely going to have a 
little bit more of an impact on 

239
00:11:39,560 --> 00:11:43,240
that posterior lateral heel. 
It's not quite as rounded as 

240
00:11:43,240 --> 00:11:44,760
some of the other models they've
made. 

241
00:11:45,720 --> 00:11:48,160
So if you land pretty 
aggressively there, you're 

242
00:11:48,160 --> 00:11:50,080
really going to feel it and 
you're going to kind of have 

243
00:11:50,080 --> 00:11:51,920
that. 
I, I describe it like a wedge. 

244
00:11:51,920 --> 00:11:56,320
Like if you kind of put inside 
of your shoe a little angle of 

245
00:11:56,320 --> 00:11:59,240
foam and it's just like a little
triangle there and you just 

246
00:11:59,240 --> 00:12:01,680
wedge it onto the outside of 
where you're stepping in. 

247
00:12:01,680 --> 00:12:04,320
You're going to feel your foot 
kind of roll inwards and it's 

248
00:12:04,320 --> 00:12:08,440
going to kind of pitch you that 
way, but not in a fluid way, if 

249
00:12:08,440 --> 00:12:10,440
that makes sense. 
Because we were saying with the 

250
00:12:10,440 --> 00:12:13,720
posterior lateral bevel, that's 
kind of the idea of it, but it 

251
00:12:13,720 --> 00:12:16,240
does it in a way that's natural 
with your bio mechanics in this 

252
00:12:16,240 --> 00:12:18,040
situation. 
You're doing that because you're

253
00:12:18,040 --> 00:12:21,560
hitting something and then 
coming off of it. 

254
00:12:21,560 --> 00:12:24,120
So it's a very jarring type of 
way of getting there. 

255
00:12:24,480 --> 00:12:27,120
We should probably clarify that 
again, a lot of people when they

256
00:12:27,120 --> 00:12:29,920
look at a bevel, they're just 
looking at how curved the back 

257
00:12:29,920 --> 00:12:32,840
is just in one plane. 
But we're also talking about 

258
00:12:32,840 --> 00:12:35,400
making sure you're thinking 
about like it as a 3D motion, 

259
00:12:35,400 --> 00:12:37,920
because the heel isn't just 
this. 

260
00:12:37,920 --> 00:12:41,680
It doesn't just have this rigid 
like like curve at the back. 

261
00:12:41,680 --> 00:12:43,280
It's like the whole thing is 
rounded. 

262
00:12:43,600 --> 00:12:46,200
So if you want to do a heel 
bevel really well, yes you 

263
00:12:46,200 --> 00:12:48,920
should have an upward curve, but
you should also have some 

264
00:12:48,920 --> 00:12:51,160
rounding around the side. 
To be honest the best heel 

265
00:12:51,160 --> 00:12:53,760
bubble I think I've ever seen 
has come from Alter recently 

266
00:12:53,760 --> 00:12:57,400
where they like rounded the 
entire heel rather than just the

267
00:12:57,400 --> 00:12:59,440
back. 
A couple of shoes, yeah. 

268
00:12:59,640 --> 00:13:02,440
Yeah, they did a couple, a 
couple options on that. 

269
00:13:02,640 --> 00:13:05,160
But David brings up a really 
good point is that what we 

270
00:13:05,160 --> 00:13:08,840
haven't addressed so far is yes,
OK, how, how curved is it, 

271
00:13:08,840 --> 00:13:10,400
right? 
Is it, is there a rounding 

272
00:13:10,400 --> 00:13:12,280
especially on that posterior 
lateral side? 

273
00:13:12,640 --> 00:13:14,800
But probably the other thing 
that we have to talk about is 

274
00:13:14,800 --> 00:13:17,000
how, what is the like, what 
would you call this? 

275
00:13:17,000 --> 00:13:20,560
The rate of the bevel? 
Is it gradual or aggressive? 

276
00:13:20,560 --> 00:13:23,640
Because you're going to have a 
bevel, but if it's really steep,

277
00:13:23,960 --> 00:13:26,040
it's going to like push you 
forward really quick. 

278
00:13:26,040 --> 00:13:29,280
And it may still feel like 
there's not that versus, you 

279
00:13:29,280 --> 00:13:32,720
know, we, we have a love hate 
relationship with the new 

280
00:13:32,720 --> 00:13:36,440
balances of Halos, balos. 
I said Balos, I want to go to 

281
00:13:36,440 --> 00:13:38,120
David. 
I have no idea though. 

282
00:13:38,520 --> 00:13:40,520
But. 
So, David, why, Why don't you 

283
00:13:40,520 --> 00:13:43,040
like this shoe again? 
Because your foot got hurt in 

284
00:13:43,040 --> 00:13:45,440
it. 
So you do like it. 

285
00:13:45,480 --> 00:13:47,000
I love. 
How like I was like, oh, I'm not

286
00:13:47,000 --> 00:13:49,520
going to throw this shoe under 
the bus and like everyone goes 

287
00:13:49,520 --> 00:13:51,760
and comments like it's fine 
David, it's the Bayless. 

288
00:13:52,520 --> 00:13:54,600
So how did everyone know I'm? 
Like. 

289
00:13:56,560 --> 00:13:59,440
But yeah, so it's a pretty 
aggressive one there. 

290
00:13:59,440 --> 00:14:02,040
It's it's it's a big rocker on 
the heel. 

291
00:14:02,040 --> 00:14:05,160
It extends very far up as far as
the rarefoot's concerned. 

292
00:14:05,160 --> 00:14:08,720
And it essentially it's so 
rounded that you're kind of 

293
00:14:09,360 --> 00:14:12,320
almost always pitched forward 
because of how well it's 

294
00:14:12,320 --> 00:14:13,640
rounded. 
Like it's actually, it's a 

295
00:14:13,640 --> 00:14:16,720
pretty good one if you respond 
well to that type of geometry. 

296
00:14:17,480 --> 00:14:20,600
And not to say that I responded 
bad to it per SE. 

297
00:14:20,600 --> 00:14:23,520
I think my foot didn't agree 
with it for other reasons. 

298
00:14:24,600 --> 00:14:28,880
Very, very soft compliant foam. 
The rubber isn't really rubber. 

299
00:14:28,880 --> 00:14:31,440
It's kind of like a rubberized 
Eva that has color on it. 

300
00:14:31,640 --> 00:14:36,000
So it's really soft. 
There is not that much like 

301
00:14:36,000 --> 00:14:38,520
stability to the midfoot. 
So I felt like my intrinsic foot

302
00:14:38,520 --> 00:14:40,840
muscles, like how we're talking 
about the transitions of the 

303
00:14:40,840 --> 00:14:44,600
gait cycle, like we're kind of 
skipping that initial contact to

304
00:14:44,600 --> 00:14:47,280
some degree like it's happening,
but it's very, very quick. 

305
00:14:47,560 --> 00:14:50,680
And then now everything in my 
midfoot is having to basically 

306
00:14:50,680 --> 00:14:53,560
create that stable moment and 
then lever off and push off. 

307
00:14:54,080 --> 00:14:58,440
And that stiffness of being able
to just like be compliant and 

308
00:14:58,440 --> 00:15:01,440
stiffen up at that quick of a 
rate over and over and over 

309
00:15:01,440 --> 00:15:04,800
again. 
As fun as the shoe felt, it 

310
00:15:04,800 --> 00:15:07,720
actually was a really fun ride. 
I enjoyed it, but I couldn't, I 

311
00:15:07,720 --> 00:15:10,720
just couldn't run in it like it.
It would just hurt. 

312
00:15:10,960 --> 00:15:13,280
It would hurt my foot. 
Yeah, that's out there where you

313
00:15:13,280 --> 00:15:15,480
got you got it out of me. 
Yeah, that's OK. 

314
00:15:15,880 --> 00:15:18,440
So I, I, so this is where we 
talk about individuality is the 

315
00:15:18,440 --> 00:15:21,720
size of the bevel can make some 
major, major impacts in your 

316
00:15:21,720 --> 00:15:23,920
gait. 
I forget what company what did 

317
00:15:23,920 --> 00:15:26,880
it, but they did some kind of 
unpublished research that 

318
00:15:26,880 --> 00:15:30,080
suggested that I think it might 
have been Brooks, either Brooks 

319
00:15:30,080 --> 00:15:32,880
or Skechers that suggested that 
the larger the bevel, it 

320
00:15:32,880 --> 00:15:35,320
actually moved your initial 
contact point a little bit 

321
00:15:35,320 --> 00:15:37,840
farther forward. 
So for me, I've always done 

322
00:15:37,840 --> 00:15:40,800
really, really well with large 
bevels because I tend to land 

323
00:15:40,800 --> 00:15:43,760
really far back and getting me a
little farther forward to me 

324
00:15:43,760 --> 00:15:46,240
feels good. 
Also, I slammed the back of the 

325
00:15:46,240 --> 00:15:47,560
heel. 
So any help I can get 

326
00:15:47,560 --> 00:15:50,160
transitioning forward is really,
really good. 

327
00:15:50,160 --> 00:15:53,400
So, but for a lot of people, 
this might be too aggressive 

328
00:15:53,400 --> 00:15:55,200
because it might change where 
they're landing. 

329
00:15:55,400 --> 00:15:57,680
And if that is something they're
sensitive to, that might be a 

330
00:15:57,680 --> 00:15:59,880
problem. 
So for this, this design works 

331
00:15:59,880 --> 00:16:02,920
really, really well for me. 
I like large bevels like this 

332
00:16:02,920 --> 00:16:07,160
that go really far forward, 
whereas small ones don't work as

333
00:16:07,160 --> 00:16:08,680
well. 
Do you have an example of a 

334
00:16:08,680 --> 00:16:13,440
really small one? 
Yeah, I mean the the ghost Max. 

335
00:16:14,080 --> 00:16:16,000
Oh yeah, yeah, that's a great 
example. 

336
00:16:16,000 --> 00:16:17,920
Especially for how big the shoe 
is. 

337
00:16:17,920 --> 00:16:21,120
So we were talking about 
earlier, like with how much foam

338
00:16:21,200 --> 00:16:23,960
is under some of these shoes, 
it's that much more important to

339
00:16:23,960 --> 00:16:26,560
have a rounding because that 
lever arm is not longer. 

340
00:16:26,560 --> 00:16:30,040
And so if you don't have some 
way of easing that transition 

341
00:16:30,040 --> 00:16:33,240
off of that initial contact and 
coming down, we're talking about

342
00:16:33,240 --> 00:16:36,240
all that load that goes through 
tibialis anterior that just went

343
00:16:36,240 --> 00:16:38,360
up like that just skyrocketed 
like crazy. 

344
00:16:38,720 --> 00:16:41,920
And so it doesn't feel good. 
It feels very sloppy, those 

345
00:16:41,920 --> 00:16:44,240
types of things. 
If if the shoe is like that, and

346
00:16:44,240 --> 00:16:46,800
I'm not going to say that's for 
everyone in the Ghost Max, but 

347
00:16:46,800 --> 00:16:52,440
for someone like Klein ghost Max
2 or ghost Max 2 ghost Max 2 

348
00:16:52,920 --> 00:16:56,000
correction, yes. 
But if you look at it, it 

349
00:16:56,000 --> 00:16:58,960
doesn't really take much looking
at it to realize that's pretty 

350
00:16:58,960 --> 00:17:03,000
flat for the shoe and it's very 
minimally rounded. 

351
00:17:03,040 --> 00:17:05,880
It exists. 
It's just really small and it's 

352
00:17:06,000 --> 00:17:08,920
and there's just not much. 
It's almost like they just just 

353
00:17:09,000 --> 00:17:12,520
rounded the very back off but 
didn't actually create a true 

354
00:17:12,520 --> 00:17:16,040
like rounding through the heel. 
And so that's one where it's a 

355
00:17:16,040 --> 00:17:18,040
little bit more of a Shank 
almost where you're going to 

356
00:17:18,240 --> 00:17:19,880
like for standing. 
It's actually pretty comfortable

357
00:17:19,880 --> 00:17:22,200
I think. 
Standing and walking, actually. 

358
00:17:22,200 --> 00:17:23,839
That shoe is pretty solid 
actually. 

359
00:17:23,839 --> 00:17:26,960
Yeah, But for running, if you're
putting that much force into the

360
00:17:26,960 --> 00:17:29,120
ground and if you're someone 
like Klein where you're just a 

361
00:17:29,120 --> 00:17:31,840
little bit further back, you're 
now increasing the load on that 

362
00:17:31,840 --> 00:17:35,800
chin and your quads and like, 
think like it's going up a lot 

363
00:17:35,800 --> 00:17:37,480
and it's probably not the most 
enjoyable. 

364
00:17:37,480 --> 00:17:39,840
And I don't think he had a very 
great time in that shoe. 

365
00:17:40,960 --> 00:17:43,160
Yeah, someone like me, I 
probably could get away with it,

366
00:17:43,240 --> 00:17:46,040
but. 
If you land farther forward and 

367
00:17:46,040 --> 00:17:49,080
you totally be like you don't 
even hit the heel, this is going

368
00:17:49,080 --> 00:17:52,360
to be a non issue for you. 
But for like for heel strikers, 

369
00:17:52,360 --> 00:17:56,120
which is over 70% of the running
population, like you'll notice 

370
00:17:56,120 --> 00:17:58,440
that. 
But I have to give the Ghost Max

371
00:17:58,440 --> 00:18:02,840
to some credit because I feel 
like that shoe was designed more

372
00:18:02,840 --> 00:18:05,320
and this might offend some 
people more for a variety of 

373
00:18:05,320 --> 00:18:08,280
like walkers, right? 
So the Dyad is kind of where 

374
00:18:08,280 --> 00:18:11,400
this got inspired by where the 
Dyad and other kind of pure 

375
00:18:11,400 --> 00:18:14,440
walking shoes typically don't 
like, especially when we're 

376
00:18:14,440 --> 00:18:17,200
talking about like orthopedic 
shoes, people are generally 

377
00:18:17,200 --> 00:18:19,160
needing. 
They may not have the most 

378
00:18:19,160 --> 00:18:20,800
smoothest gait. 
They might need a little bit 

379
00:18:20,800 --> 00:18:24,040
more stiffness because we might 
have some issues either rocking 

380
00:18:24,040 --> 00:18:28,040
backwards or some a variety of 
areas for a walking for people 

381
00:18:28,040 --> 00:18:32,240
with some balance issues, a less
rocker shoe actually might be a 

382
00:18:32,240 --> 00:18:34,800
better option because 1 of the 
complaints people will have with

383
00:18:34,800 --> 00:18:37,360
a large posterior bevel is if 
you lean back at all, it just 

384
00:18:37,360 --> 00:18:40,600
rolls backwards. 
So anybody again, if you're 

385
00:18:40,600 --> 00:18:43,240
talking about neurologic 
population, talking about maybe 

386
00:18:43,240 --> 00:18:46,720
the individual that doesn't have
some great like balance 

387
00:18:46,720 --> 00:18:50,760
reactions, a not large bevel 
might be a better option. 

388
00:18:50,800 --> 00:18:53,640
Also, if you're not worried 
about compressing things as 

389
00:18:53,640 --> 00:18:56,520
much, like you're not running, 
you know, not a runner, Walker, 

390
00:18:56,600 --> 00:18:58,160
or a smaller bevel might be 
fine. 

391
00:18:58,160 --> 00:19:00,440
Because you're compressing, you 
don't go through as big of an 

392
00:19:00,440 --> 00:19:02,640
arc of motion as you do with 
running. 

393
00:19:03,880 --> 00:19:07,440
For walking too, have you tried 
walking in the bellows? 

394
00:19:08,440 --> 00:19:09,560
That wasn't the most. 
Fun. 

395
00:19:09,560 --> 00:19:12,800
It's kind of awkward and it's 
like, you know, it's because 

396
00:19:12,800 --> 00:19:14,680
this shoe is really designed for
running. 

397
00:19:14,920 --> 00:19:18,040
Large bevelers are going to do 
better with faster transitions 

398
00:19:18,040 --> 00:19:21,000
and greater forces. 
So with walking, you may not 

399
00:19:21,000 --> 00:19:24,440
need as big of a bevel and a 
shoe that I really thought about

400
00:19:24,440 --> 00:19:26,760
that I've really enjoyed 
recently the on cloud runner 2. 

401
00:19:26,760 --> 00:19:30,400
For those who can see it has a 
really well positioned poster 

402
00:19:30,400 --> 00:19:32,360
lateral bevel and the foam is 
nice. 

403
00:19:32,360 --> 00:19:35,280
It's on the firmer side, but it 
does compress more with running.

404
00:19:35,280 --> 00:19:38,120
And I've loved this shoe for 
both walking and running. 

405
00:19:38,240 --> 00:19:41,440
It's got a solid well placed 
poster lateral bubble, but it's 

406
00:19:41,440 --> 00:19:43,760
not the most massive thing on 
the planet. 

407
00:19:43,760 --> 00:19:46,200
Yet it still works really, 
really well for both walking and

408
00:19:46,200 --> 00:19:48,600
running. 
Is it a little firm for running?

409
00:19:48,640 --> 00:19:50,800
Yeah, it is. 
But I typically like a little 

410
00:19:50,800 --> 00:19:52,960
firmer ride. 
And the the poster lateral 

411
00:19:52,960 --> 00:19:55,960
bubble is placed well enough 
that it doesn't bother me, but 

412
00:19:55,960 --> 00:19:58,960
it's also not big enough that it
it's feel it doesn't feel 

413
00:19:59,040 --> 00:20:02,000
awkward while walking. 
So there is a balance, right? 

414
00:20:02,000 --> 00:20:05,560
And we're not saying that every 
shoe needs to have this giant, 

415
00:20:05,560 --> 00:20:07,840
massive bevel, that the whole 
shoe needs to be this. 

416
00:20:08,240 --> 00:20:11,520
Crazy rocker, although some 
people might need that. 

417
00:20:11,800 --> 00:20:15,080
We're just saying there is an 
optimal place to put this thing 

418
00:20:15,360 --> 00:20:19,000
and it should at least have at 
least a small to moderate 1. 

419
00:20:19,000 --> 00:20:21,160
And if you're getting into 
running, you're going to want to

420
00:20:21,160 --> 00:20:24,720
have at least a moderate to like
a moderate sized 1 because of 

421
00:20:24,720 --> 00:20:28,320
the forces that go with it. 
That's just how things go, 

422
00:20:28,440 --> 00:20:30,760
right? 
In relation to the 

423
00:20:30,760 --> 00:20:33,800
posterolateral bubble, although 
I personally like this and I 

424
00:20:33,800 --> 00:20:37,960
think David, hopefully I'm not 
speaking for you that you do as 

425
00:20:37,960 --> 00:20:40,840
well. 
You do have to be a little 

426
00:20:40,840 --> 00:20:43,200
careful with the small 
population of people that have 

427
00:20:43,200 --> 00:20:46,520
any kind of lateral ankle 
stability issues, like people 

428
00:20:46,520 --> 00:20:48,240
that tend to roll their ankles a
lot. 

429
00:20:48,600 --> 00:20:51,800
A strong posterolateral bevel 
you might not like and a company

430
00:20:51,800 --> 00:20:55,320
that does that very well, it 
creates a massive posterolateral

431
00:20:55,320 --> 00:20:58,040
bevel is Adidas. 
So I'm holding the Adidas Audios

432
00:20:58,040 --> 00:21:00,840
Pro 3 up. 
The two was incredibly 

433
00:21:00,840 --> 00:21:03,000
aggressive and I would. 
Say a little too much, I think 

434
00:21:03,000 --> 00:21:04,680
that was. 
I mean, that was almost like a 

435
00:21:04,920 --> 00:21:08,760
had like a stability shoe heel. 
The boss is another great 

436
00:21:08,760 --> 00:21:11,080
example where there's just a, 
the bevel is done really well 

437
00:21:11,080 --> 00:21:13,640
with the majority of bevel is on
the lateral side. 

438
00:21:14,040 --> 00:21:17,280
And what that does when you have
a very large poster level bevel 

439
00:21:17,280 --> 00:21:20,920
that's really pushed like really
curved on the outside and not so

440
00:21:20,920 --> 00:21:23,720
much on the inside is it 
actually creates almost like a 

441
00:21:23,800 --> 00:21:27,200
wedge slash post in the heel. 
So people like myself that 

442
00:21:27,200 --> 00:21:29,560
pronate really aggressively do 
great, right? 

443
00:21:29,560 --> 00:21:30,960
It makes the shoe feel more 
stable. 

444
00:21:30,960 --> 00:21:33,960
There's some resistance to some 
medial emotions, inward motion. 

445
00:21:34,240 --> 00:21:37,640
But people that are like 
unstable laterally or go too far

446
00:21:37,640 --> 00:21:39,720
laterally, they're going to hate
it because they're like, oh, it 

447
00:21:39,720 --> 00:21:41,800
feels unstable. 
Feels my like my ankles going 

448
00:21:41,800 --> 00:21:45,000
off the platform. 
So again, while we talk about 

449
00:21:45,000 --> 00:21:49,080
this, not to use the old PT 
thing, it does depend. 

450
00:21:49,080 --> 00:21:52,040
Although as I'm trying to, I 
just started teaching at a 

451
00:21:52,040 --> 00:21:54,160
university, George Fox, I'm 
trying not to torture the 

452
00:21:54,160 --> 00:21:57,240
students with it depends. 
I'm trying to say context of the

453
00:21:57,240 --> 00:22:00,840
habitual is appropriate, that 
there are a variety of needs and

454
00:22:00,840 --> 00:22:03,160
what those needs look like may 
vary. 

455
00:22:03,280 --> 00:22:06,800
I agree completely. 
So I usually get really annoyed 

456
00:22:06,800 --> 00:22:09,880
when there's a medial bevel like
I forget what. 

457
00:22:09,880 --> 00:22:13,160
What's the example of this? 
Every once in a while you see 

458
00:22:13,160 --> 00:22:15,200
one. 
Yeah, who else did someone 

459
00:22:15,200 --> 00:22:16,960
recently? 
And I'm like, why would you do 

460
00:22:16,960 --> 00:22:19,520
that? 
Like that People don't land on 

461
00:22:19,520 --> 00:22:21,400
the like, do they? 
Am I missing this? 

462
00:22:21,640 --> 00:22:23,760
Can you Fact Check me Do? 
Are there people that land on 

463
00:22:23,760 --> 00:22:26,920
the medial side of their foot? 
I mean, if they supinate really 

464
00:22:26,920 --> 00:22:31,280
hard, I mean, maybe it'd it'd 
still be, I think more of a 

465
00:22:31,280 --> 00:22:33,400
midfoot, forefoot type of a 
pattern anyways. 

466
00:22:33,960 --> 00:22:36,480
Yeah, I don't, but I don't. 
I've never seen and like. 

467
00:22:36,480 --> 00:22:40,280
Nothing like the. 
Yeah, the like land medial and 

468
00:22:40,280 --> 00:22:42,680
like roll outward like or land 
on the I'm sorry, I keep using. 

469
00:22:42,760 --> 00:22:44,560
I know people don't always know 
what medial means. 

470
00:22:44,600 --> 00:22:47,040
The inside is the inside, 
lateral is the outside. 

471
00:22:47,360 --> 00:22:49,840
So like landing on the inside 
and rolling out like I I've 

472
00:22:49,880 --> 00:22:51,840
never. 
Seen it would look weird that'd 

473
00:22:51,840 --> 00:22:55,240
be I've seen Oh and land. 
Yeah. 

474
00:22:55,880 --> 00:22:56,960
Oh and I meant the comment about
like. 

475
00:22:56,960 --> 00:22:58,320
I thought that one might have 
been a little too much. 

476
00:22:58,320 --> 00:23:00,800
I was talking with the Pro 2, 
not Pro 3 for me. 

477
00:23:01,040 --> 00:23:05,600
Yeah, yeah, yeah, yeah. 
Audios Pro 2. 

478
00:23:05,960 --> 00:23:07,840
Oh, yeah, yeah, yeah, that's I, 
I agree. 

479
00:23:07,880 --> 00:23:08,960
Yes, that one was pretty 
aggressive. 

480
00:23:09,000 --> 00:23:11,560
I liked it. 
But I think the majority of the 

481
00:23:11,560 --> 00:23:14,480
population was like, no, that 
was too much. 

482
00:23:14,520 --> 00:23:17,840
I will say to you like one thing
consideration when looking at 

483
00:23:17,840 --> 00:23:20,560
the whole shoe is if you're 
going to do a design like that, 

484
00:23:20,560 --> 00:23:22,640
you have to have good 4 foot 
stability too. 

485
00:23:22,680 --> 00:23:25,800
Yes, because if that transitions
really fast, 11 shoe that I 

486
00:23:25,800 --> 00:23:28,960
think does that beautifully is 
the Takumi 79. 

487
00:23:29,200 --> 00:23:31,800
Yes. 
Where you have a very fast quick

488
00:23:31,800 --> 00:23:34,760
transitioning heel and mid foot.
But then that 4 foot, it's just 

489
00:23:34,760 --> 00:23:37,760
solid and it, whether you're 
pronating hard or supinating, 

490
00:23:37,760 --> 00:23:40,320
whatever, like that thing is 
just locked in and it's grippy 

491
00:23:40,320 --> 00:23:42,600
and it's like a solid platform 
to push off of. 

492
00:23:43,240 --> 00:23:46,080
So like looking at 
considerations of the goals of 

493
00:23:46,080 --> 00:23:50,760
the shoe can definitely change 
your indications of how you want

494
00:23:50,760 --> 00:23:54,400
to implement the bevel. 
And I just want to show 1 shoe 

495
00:23:54,400 --> 00:23:57,040
really quick, which is kind of 
the radical opposite of what 

496
00:23:57,040 --> 00:24:00,320
we're talking about. 
But the Saucony Convara? 

497
00:24:01,760 --> 00:24:03,240
What? 
What number are we on now, 15? 

498
00:24:03,480 --> 00:24:04,640
15, yeah. 
Yeah. 

499
00:24:04,640 --> 00:24:07,320
So this is a shoe a little bit 
lower to the ground, a little 

500
00:24:07,320 --> 00:24:10,720
bit more of a flexible design, 
and it's a much flatter profile,

501
00:24:10,720 --> 00:24:13,000
right? 
They have a bevel, it's not 

502
00:24:13,000 --> 00:24:14,960
huge, so they don't really need 
a big one. 

503
00:24:14,960 --> 00:24:18,080
The second you land, that thing 
flexes and does its own thing. 

504
00:24:18,080 --> 00:24:22,640
So it's just another example of,
like you were saying, like shoes

505
00:24:22,640 --> 00:24:25,640
that have flatter bevels and 
like it can be for a couple 

506
00:24:25,640 --> 00:24:28,600
different reasons, whether it's 
sometimes going fast and 

507
00:24:28,600 --> 00:24:30,440
something a little bit lower to 
the ground that might actually 

508
00:24:30,440 --> 00:24:32,880
feel nicer as well. 
The other consideration I almost

509
00:24:32,880 --> 00:24:36,120
forgot to mention when designing
a bevel or looking at 1 is how 

510
00:24:36,120 --> 00:24:39,640
much the foam compresses. 
So the Super blast is a really 

511
00:24:39,640 --> 00:24:42,360
great example. 
This where the bevel here, it's 

512
00:24:42,360 --> 00:24:45,320
a large bevel but it's very 
centered. 

513
00:24:45,320 --> 00:24:46,680
So we should probably have 
talked about South 

514
00:24:46,680 --> 00:24:49,160
posterolateral means the bevel 
is shifted off to the side. 

515
00:24:49,440 --> 00:24:51,400
When we talk about center 
demeans, the things vary. 

516
00:24:51,400 --> 00:24:55,720
Like even there's no curve on 
the outside, it's mostly rounded

517
00:24:55,720 --> 00:24:58,080
up toward the back. 
Now if you have a really soft 

518
00:24:58,080 --> 00:25:01,560
foam, you may not need a 
posterolateral bubble because 

519
00:25:01,560 --> 00:25:03,560
the foam might just compress 
that way anyway. 

520
00:25:03,560 --> 00:25:05,920
And if you took put too much of 
an aggressive one, you'll roll 

521
00:25:05,920 --> 00:25:08,880
out too far. 
A lot of the Super shoes do 

522
00:25:08,880 --> 00:25:11,760
this, not all of them, but a lot
of them do this because the 

523
00:25:11,760 --> 00:25:14,840
companies know, hey, when you 
land on that posterolateral 

524
00:25:14,840 --> 00:25:17,320
aspect, that foam is going to 
compress so much that if we add 

525
00:25:17,320 --> 00:25:20,040
too much of A posterolateral 
bevel that you're just going to 

526
00:25:20,040 --> 00:25:23,240
go flying that direction, unless
you're me and just loves that in

527
00:25:23,240 --> 00:25:24,440
general. 
Right. 

528
00:25:24,440 --> 00:25:27,800
So the Soccone Endorphin Pro 4 
is a great example of this where

529
00:25:28,000 --> 00:25:31,400
they've got a large poster 
posterior bevel, but it's fairly

530
00:25:31,400 --> 00:25:35,520
centered because that lateral 
midsole material actually 

531
00:25:35,520 --> 00:25:37,760
compresses a little bit more 
than the medial side. 

532
00:25:37,920 --> 00:25:39,880
So they know, yeah, you're going
to hit, if you land on your 

533
00:25:39,880 --> 00:25:42,360
heel, that's going to compress 
and create that posterior 

534
00:25:42,360 --> 00:25:44,840
lateral bevel for you and roll 
you forwards. 

535
00:25:45,040 --> 00:25:47,520
That's assuming of course, the 
person's like running, like 

536
00:25:47,720 --> 00:25:49,040
compressing the foam at the 
right. 

537
00:25:49,240 --> 00:25:51,400
That's a different conversation 
we can talk about. 

538
00:25:51,760 --> 00:25:54,400
But yeah, that's where like the 
Super blast, I looked at it 

539
00:25:54,400 --> 00:25:58,040
like, oh, this is not going to 
work for me, but it does because

540
00:25:58,120 --> 00:26:00,440
it it just compresses so well in
the lateral side because the 

541
00:26:00,440 --> 00:26:04,000
foam is relatively soft. 
Yeah, totally. 

542
00:26:04,040 --> 00:26:05,720
And you see that a lot with the 
Super shoes too. 

543
00:26:05,760 --> 00:26:07,680
Yeah, just generally speaking, 
yeah. 

544
00:26:07,800 --> 00:26:13,000
And I think that's why the the 
Adidas Eddy 0 Audios Pro 2 was 

545
00:26:13,000 --> 00:26:16,280
just so unstable for people 
because it not only had that 

546
00:26:16,280 --> 00:26:19,920
softer foam, but it had a huge 
poster lateral bubble too. 

547
00:26:19,920 --> 00:26:22,680
So people were like were like 
rolling off the side. 

548
00:26:22,960 --> 00:26:29,000
You know, the crazier 1 was the 
Adidas, the Primex series where 

549
00:26:29,000 --> 00:26:33,680
they would have that except with
50mm of heel of heel out of 

550
00:26:33,920 --> 00:26:36,880
midsole material, plus that same
massive bevel. 

551
00:26:37,200 --> 00:26:39,080
And we got all these stories 
like people like literally 

552
00:26:39,080 --> 00:26:41,640
breaking their ankles because 
they'd roll their foot in that 

553
00:26:41,920 --> 00:26:45,560
the Primax strung 2 was slightly
better, but it's still because 

554
00:26:45,560 --> 00:26:48,600
it's firmer. 
But that you have to be careful 

555
00:26:48,600 --> 00:26:52,160
with those designing 50mm stack 
height shoes is a totally 

556
00:26:52,160 --> 00:26:58,400
different different crazy story.
So yeah, Primax one man, that 

557
00:26:58,400 --> 00:26:59,400
was why. 
Nuts. 

558
00:27:00,000 --> 00:27:02,800
Speaking of wild, if we're going
to talk about crazy heel bevels,

559
00:27:02,800 --> 00:27:04,040
I got to bring up the Mizuno 
wave. 

560
00:27:04,040 --> 00:27:09,240
For there we go. 
Pro series like do we call this 

561
00:27:09,240 --> 00:27:11,400
a bevel? 
So for people that are listening

562
00:27:11,400 --> 00:27:14,200
to this, this shoe is nuts. 
First of all, the first version 

563
00:27:14,200 --> 00:27:15,680
was crazy. 
I think they made this more 

564
00:27:15,680 --> 00:27:20,960
aggressive in the second one 
where like they cheat. 

565
00:27:20,960 --> 00:27:23,640
Cheat is not the right word. 
They they figured out how to get

566
00:27:23,640 --> 00:27:27,760
around things by adding more, 
like increasing the height of 

567
00:27:27,760 --> 00:27:29,560
the heel. 
Like they basically this is a 

568
00:27:29,640 --> 00:27:32,720
really high stack height shoe. 
But then they cut the heel in a 

569
00:27:32,720 --> 00:27:36,200
way and bevel it so that it's 
technically still. 

570
00:27:36,200 --> 00:27:37,680
Yeah. 
When you measure it per the 

571
00:27:37,680 --> 00:27:39,840
world standards, it's still 
under the limit. 

572
00:27:40,200 --> 00:27:41,920
How would you describe this 
heel? 

573
00:27:42,120 --> 00:27:44,720
Oh yeah, I mean, well, it's an 
aggressively beveled heel, 

574
00:27:44,720 --> 00:27:46,720
right? 
Like maybe the most aggressive. 

575
00:27:46,880 --> 00:27:51,040
It's almost like you took a slab
of foam and let's just, let's 

576
00:27:51,040 --> 00:27:53,400
just simplify this. 
We'll make it a rectangle so 

577
00:27:53,400 --> 00:27:56,200
it's not even on a shoe. 
And then you go and you look at 

578
00:27:56,200 --> 00:28:00,560
the bottom right corner of that 
foam and you draw a triangle and

579
00:28:00,560 --> 00:28:03,920
you just go up about half the 
height of that foam and then do 

580
00:28:03,920 --> 00:28:07,920
a long diagonal gotten that way.
That's essentially what they 

581
00:28:07,920 --> 00:28:09,640
did. 
It's like there's a slab of foam

582
00:28:09,640 --> 00:28:13,800
just missing and it's it's a 
pretty dramatic heel bevel, but 

583
00:28:13,800 --> 00:28:15,520
it works really well for this 
shoe. 

584
00:28:15,520 --> 00:28:18,040
The way they have that plate 
designed, it actually flows 

585
00:28:18,040 --> 00:28:21,720
pretty well, but it definitely 
keeps you very forward, keeps 

586
00:28:21,960 --> 00:28:24,560
you very much on your midfoot 
and through your forefoot. 

587
00:28:24,560 --> 00:28:28,520
It's a very lively feeling shoe 
and some people that might feel 

588
00:28:28,520 --> 00:28:31,200
a little too aggressive, but 
some people are going to really 

589
00:28:31,200 --> 00:28:33,680
love it and it's a it's a fun 
Jew. 

590
00:28:33,680 --> 00:28:35,920
I like the Rebellion Pro 2. 
Me too. 

591
00:28:36,240 --> 00:28:39,600
I've noticed that for me, like 
if I'm like really back for my 

592
00:28:39,600 --> 00:28:42,200
heel, it feels pretty clunky, 
like you're trying to get over 

593
00:28:42,200 --> 00:28:44,040
this. 
There's a pivot point where it 

594
00:28:44,040 --> 00:28:45,720
finally ends. 
You kind of have to get over. 

595
00:28:45,720 --> 00:28:49,640
The sweet spot is either landing
right on the pivot point or 

596
00:28:49,840 --> 00:28:52,120
there's a name for this that I'm
totally forgetting that we 

597
00:28:52,120 --> 00:28:53,240
should know. 
It's like. 

598
00:28:53,240 --> 00:28:57,040
It was Mizuno who was doing the 
the heel bevel stuff where they 

599
00:28:57,040 --> 00:28:59,720
were playing with the angles. 
Yes, but what's the? 

600
00:29:00,080 --> 00:29:02,440
Is it the apex? 
Is that the term I'm looking 

601
00:29:02,440 --> 00:29:03,880
for? 
I think. 

602
00:29:03,920 --> 00:29:06,320
Where of like where the thing 
ends? 

603
00:29:06,320 --> 00:29:07,280
Yeah. 
Is that the right term? 

604
00:29:07,800 --> 00:29:10,520
Or the point at which it like 
rounds where the angle? 

605
00:29:10,720 --> 00:29:12,480
Yeah, the apex is super far 
forward. 

606
00:29:12,480 --> 00:29:15,160
But if you land on that and 
somebody in the comments correct

607
00:29:15,160 --> 00:29:18,920
us please, if that's wrong, if 
you land on this part, it 

608
00:29:18,920 --> 00:29:20,600
actually trampolines you 
forward. 

609
00:29:20,600 --> 00:29:23,280
Or if you're like Andrew, who 
also really loves this shoe, if 

610
00:29:23,280 --> 00:29:25,800
you land for that 4 foot 
midfoot, it's it's perfect. 

611
00:29:25,800 --> 00:29:28,520
So this is a great example, like
a more extreme example of what 

612
00:29:28,520 --> 00:29:32,760
happened with the Bailos where 
it will it if you respond, it 

613
00:29:32,760 --> 00:29:34,840
will push you forward to make 
you land farther forward. 

614
00:29:35,040 --> 00:29:39,240
If you're more of an extreme 
heel striker, this might not 

615
00:29:39,240 --> 00:29:40,160
work. 
It might work. 

616
00:29:40,160 --> 00:29:41,240
I don't know. 
That's a great. 

617
00:29:42,040 --> 00:29:44,880
It's so dramatic that you'd have
to just try it at that point. 

618
00:29:44,880 --> 00:29:49,920
Yeah, yeah. 
So if you had a perfect heel on 

619
00:29:49,920 --> 00:29:51,720
a shoe, what would that look 
like for you? 

620
00:29:51,720 --> 00:29:54,040
How would you design that? 
There's one more element that we

621
00:29:54,040 --> 00:29:56,480
need to talk about that I I 
almost forgot about, but then 

622
00:29:56,480 --> 00:30:01,960
we'll get you after this, but. 
OK, yeah, I so I'm, I think in a

623
00:30:01,960 --> 00:30:05,680
daily training shoe, I don't 
need that much. 

624
00:30:06,080 --> 00:30:09,560
So as long as there's a rounding
through the heel, I do like a 

625
00:30:09,560 --> 00:30:12,160
little bit of a lateral bias, 
doesn't have to be quite as 

626
00:30:12,160 --> 00:30:14,280
aggressive as some of the other 
shoes we're talking about. 

627
00:30:14,720 --> 00:30:16,640
If it's a little bit more of a 
moderate stack height like the 

628
00:30:16,640 --> 00:30:19,920
Takumi Sen, I really like that 
type of a profile for running 

629
00:30:19,920 --> 00:30:21,920
fast. 
I think that's a very fun type 

630
00:30:21,920 --> 00:30:24,960
of geometry. 
But for daily training, I don't 

631
00:30:24,960 --> 00:30:27,800
need it quite as aggressively. 
As long as it's rounded a little

632
00:30:27,800 --> 00:30:30,840
bit and it has a little bit of 
of compression like how you 

633
00:30:30,840 --> 00:30:35,040
alluded to with the Super Blast 
Two, that is something that can 

634
00:30:35,040 --> 00:30:36,800
agree with me. 
And so that's why I think the 

635
00:30:36,800 --> 00:30:39,600
sky Flow, even though it has 
that slight little flare to it, 

636
00:30:39,600 --> 00:30:41,480
it didn't really bother me that 
much. 

637
00:30:41,960 --> 00:30:44,800
And I actually kind of liked the
general stiffness of the rest of

638
00:30:44,800 --> 00:30:46,480
the platform and the soul 
flaring. 

639
00:30:46,480 --> 00:30:48,800
And I just had a nice pleasant 
ride on it. 

640
00:30:49,160 --> 00:30:52,680
But I don't land quite as far 
back into the side as you do. 

641
00:30:53,200 --> 00:30:55,960
And so like if I was there like 
that could totally feel jarring.

642
00:30:56,320 --> 00:30:59,120
So for me, I don't need it to be
too, too aggressive. 

643
00:30:59,160 --> 00:31:03,120
You know, I just needed to have 
a little bit of rounding and AII

644
00:31:03,120 --> 00:31:05,680
do like a little bit of a 
directional bias, a shoe that 

645
00:31:05,680 --> 00:31:08,320
does that pretty well, actually.
Wait, when is this going to air?

646
00:31:08,920 --> 00:31:11,120
In like a week or two. 
What's the date today? 

647
00:31:11,960 --> 00:31:13,760
It is. 
The 8th. 

648
00:31:14,400 --> 00:31:16,280
OK, never mind, I can't talk 
about it. 

649
00:31:16,560 --> 00:31:17,000
Wait. 
Yeah. 

650
00:31:17,000 --> 00:31:20,120
For those who don't know, if we,
we usually we record this and 

651
00:31:20,120 --> 00:31:22,480
then we release, it usually 
releases two weeks later. 

652
00:31:22,480 --> 00:31:25,080
So sometimes we get to be a 
little careful with the shoes 

653
00:31:25,080 --> 00:31:27,080
that we're talking about because
they're embargoes. 

654
00:31:27,080 --> 00:31:30,080
And we try to be really 
respectful of companies because 

655
00:31:30,080 --> 00:31:33,040
we know that it's a their 
business and they're trying to 

656
00:31:33,240 --> 00:31:34,840
also make a living. 
So we're trying not to judge. 

657
00:31:35,720 --> 00:31:39,040
Yeah, it's a company that has an
NMB in it, but they did a good 

658
00:31:39,040 --> 00:31:43,840
job with a slight deviation to 
the posterior lateral side on a 

659
00:31:43,840 --> 00:31:48,000
shoe. 
I will not say the shoe and 

660
00:31:48,000 --> 00:31:50,680
you'll hear all about it when 
the time comes, which isn't that

661
00:31:50,680 --> 00:31:53,080
far in the future. 
There was they might release, we

662
00:31:53,080 --> 00:31:54,960
might have the clearance. 
Why can't we? 

663
00:31:56,160 --> 00:31:57,480
All right, look, we'll play it 
safe. 

664
00:31:58,160 --> 00:32:00,720
We'll play it safe, but like it 
it. 

665
00:32:00,800 --> 00:32:02,200
We might be good. 
I just don't want. 

666
00:32:02,200 --> 00:32:04,520
To it's a classic shoe that's 
been out there for like 14 

667
00:32:04,520 --> 00:32:06,120
years. 
Like, come on, right? 

668
00:32:06,120 --> 00:32:08,920
Is that correct? 
Something like that, I think so,

669
00:32:08,920 --> 00:32:11,560
yeah, I think, yeah, I think 
it's #14 I think. 

670
00:32:11,960 --> 00:32:13,840
I think OK. 
Yeah, yeah, yeah, I think it is.

671
00:32:13,880 --> 00:32:17,080
Yeah. 
Anyways, that shoe has a good 

672
00:32:17,080 --> 00:32:20,720
job of having a gradual heel 
bevel, but having a slight 

673
00:32:20,720 --> 00:32:22,600
lateral bias. 
But it's not that aggressive, 

674
00:32:22,960 --> 00:32:25,840
you know, and it's just enough 
to kind of help facilitate that 

675
00:32:25,840 --> 00:32:27,640
motion without getting in the 
way of anything else. 

676
00:32:27,800 --> 00:32:30,480
Yep. 
So I would I would say, and you 

677
00:32:30,480 --> 00:32:33,960
kind of answered this like I had
it just for me as someone who 

678
00:32:33,960 --> 00:32:36,400
really lands very strong at that
poster lateral side. 

679
00:32:36,680 --> 00:32:38,880
If the foam isn't going to 
compress well enough for me to 

680
00:32:38,880 --> 00:32:41,160
actually transition to the shoe 
without feeling like I'm getting

681
00:32:41,160 --> 00:32:43,400
pitched inwards. 
I just like that even just 

682
00:32:43,400 --> 00:32:46,760
slight a slight posterolateral 
bevel is good. 

683
00:32:46,760 --> 00:32:51,280
But I I do appreciate at least a
moderate bevel in all shoes as a

684
00:32:51,280 --> 00:32:54,080
heel striker as someone, because
mechanics may not be that 

685
00:32:54,080 --> 00:32:56,680
different walking versus 
running, having that sit that 

686
00:32:56,680 --> 00:32:58,800
well, That's not true. 
My running mechanics are very 

687
00:32:58,800 --> 00:33:00,400
different. 
Let me switch that. 

688
00:33:00,480 --> 00:33:03,000
They're very different. 
Helping something, having 

689
00:33:03,000 --> 00:33:05,200
something that helps me 
transition forward is really, 

690
00:33:05,200 --> 00:33:06,800
really important because I am 
one of those people that 

691
00:33:06,800 --> 00:33:09,160
experienced some mild cut of 
shin splint, shin splint 

692
00:33:09,160 --> 00:33:11,200
symptoms when I first started 
running, right. 

693
00:33:11,200 --> 00:33:13,360
I need that help with that 
transition forward. 

694
00:33:13,680 --> 00:33:15,200
Do I get on my forefoot all the 
time? 

695
00:33:15,440 --> 00:33:16,960
Yeah, I do. 
Is that all the time? 

696
00:33:17,080 --> 00:33:20,840
No, I just tend to be my knee 
and my shins tend to be a little

697
00:33:20,840 --> 00:33:23,200
sensitive when there isn't a 
bevel because I feel that 

698
00:33:23,200 --> 00:33:26,480
because I have to transit, get 
myself forward, it doesn't need 

699
00:33:26,480 --> 00:33:29,000
to be too aggressive. 
And I will say the audios Pro 2 

700
00:33:29,000 --> 00:33:30,520
felt really good for shorter 
distances. 

701
00:33:30,520 --> 00:33:34,520
I did try to take that for A20K 
and buy like 15. 

702
00:33:34,520 --> 00:33:37,360
Ki was dying because I was just 
getting rolled out too. 

703
00:33:37,440 --> 00:33:40,160
So there is such a thing as too 
much. 

704
00:33:40,160 --> 00:33:43,440
But I would encourage company to
really look at yes, either 

705
00:33:43,440 --> 00:33:47,280
having things centered or if if 
they know the foam's going to 

706
00:33:47,280 --> 00:33:50,560
compress well enough or slightly
post your lateral would be very,

707
00:33:50,560 --> 00:33:52,920
very helpful. 
Or you could go the ultra route 

708
00:33:52,920 --> 00:33:55,480
and have the whole thing rounded
like heal the whole. 

709
00:33:55,760 --> 00:33:57,760
Thing, yeah. 
That might make it unstable for 

710
00:33:57,760 --> 00:34:00,400
people with like severe like 
lateral stability. 

711
00:34:00,400 --> 00:34:03,480
So that's why I say it has to 
depend a little bit, right? 

712
00:34:03,480 --> 00:34:05,880
You have to know your customer, 
know who the shoes being meant 

713
00:34:05,880 --> 00:34:09,080
for and have some options. 
So wait, that's a great example,

714
00:34:09,080 --> 00:34:13,440
by the way, of a really 
aggressive bevel, which for me 

715
00:34:14,000 --> 00:34:16,679
that tends to be a little clumpy
because it's so sharp. 

716
00:34:16,679 --> 00:34:19,960
But how do you deal with that? 
And what shoe is that so the the

717
00:34:19,960 --> 00:34:21,560
listeners know? 
Yeah. 

718
00:34:21,560 --> 00:34:23,719
So for the listeners, I'm 
holding up the Brooks Siberian 

719
00:34:23,719 --> 00:34:26,560
Max 2, which is a pretty big 
shoe right now. 

720
00:34:26,560 --> 00:34:28,679
People are liking it. 
They really are. 

721
00:34:28,679 --> 00:34:31,239
It's been really positive. 
And, and I like it a lot too, 

722
00:34:31,239 --> 00:34:35,280
especially for daily miles, kind
of like what we were talking 

723
00:34:35,280 --> 00:34:37,719
about earlier. 
I don't really need it to be 

724
00:34:37,719 --> 00:34:40,719
rounded that far up as long as 
it's rounded a little bit. 

725
00:34:40,719 --> 00:34:44,120
So this one's aggressive, but 
it's, it's short, so it doesn't 

726
00:34:44,120 --> 00:34:46,480
extend super far into the 
midfoot there. 

727
00:34:46,480 --> 00:34:49,239
It's just like that little bit. 
And so that's why like if you 

728
00:34:49,239 --> 00:34:53,000
kind of need a little bit more 
of a transitionary kind of heel 

729
00:34:53,000 --> 00:34:56,440
bevel there like that, you this 
might not be the shoe for you 

730
00:34:56,440 --> 00:34:58,920
that might feel a little bit 
jarring like you're describing. 

731
00:34:58,920 --> 00:35:00,840
But if you just need a little 
bit of rounding, you're kind of 

732
00:35:00,840 --> 00:35:05,400
already kind of forward just 
naturally like that is a shoe 

733
00:35:05,400 --> 00:35:07,880
that will do that for you, just 
basically gives you the rounding

734
00:35:07,880 --> 00:35:12,920
that you need and nothing else. 
And so aggressive initially, but

735
00:35:12,920 --> 00:35:15,520
it doesn't extend very far 
anterior or forward. 

736
00:35:16,320 --> 00:35:19,960
I find that shoe works really, 
really well for me while walking

737
00:35:20,360 --> 00:35:24,240
and while running very quick. 
That moderate pace doesn't work 

738
00:35:24,240 --> 00:35:26,040
well because I'm just a little 
bit farther back. 

739
00:35:26,040 --> 00:35:28,160
But other people are going to 
have different experiences. 

740
00:35:28,160 --> 00:35:31,880
But you are doing a great job 
with reminding me that to bring 

741
00:35:31,880 --> 00:35:34,840
this last topic up as we have 
just jumped all over the place 

742
00:35:35,560 --> 00:35:39,480
about the fact you can have a 
bevel, but how it's shape can 

743
00:35:39,480 --> 00:35:41,880
have a big impact on how it 
actually functions. 

744
00:35:41,880 --> 00:35:45,560
The other end of the spectrum is
a shoe like the Puma Magmax 

745
00:35:45,560 --> 00:35:47,560
which also has been fairly 
popular. 

746
00:35:47,800 --> 00:35:50,720
This is a great shoe, for 
example, of where Andrew and I 

747
00:35:50,720 --> 00:35:54,080
really had different experiences
because she lands more forward 

748
00:35:54,280 --> 00:35:57,600
and thought the bevel was fine. 
I didn't because there's a lot 

749
00:35:57,600 --> 00:35:59,400
of posterior lot posterior 
flare. 

750
00:35:59,400 --> 00:36:03,440
Posterior flare is where the 
sole extends beyond where the 

751
00:36:03,440 --> 00:36:06,560
heel is backwards. 
So what that typically does is 

752
00:36:06,560 --> 00:36:09,040
when you have a lot of posterior
flare basically means you're 

753
00:36:09,040 --> 00:36:11,800
going to hit the ground early 
and transition forward. 

754
00:36:11,800 --> 00:36:14,200
So it kind of like undos the 
whole point of a bevel. 

755
00:36:14,200 --> 00:36:16,600
So you could still have this 
beveled, but especially if that 

756
00:36:16,600 --> 00:36:20,000
bevel is really sharp like this 
shoe, it it still might feel 

757
00:36:20,000 --> 00:36:23,040
like there's an early landing on
almost like the heel is not 

758
00:36:23,040 --> 00:36:26,040
beveled and then kind of undoes 
it somewhat for someone like me.

759
00:36:26,160 --> 00:36:28,840
Other people have reported this 
is not an issue for them. 

760
00:36:28,840 --> 00:36:31,960
I'm sure if you can land at the 
right spot, compress the heels, 

761
00:36:31,960 --> 00:36:35,000
great. 
But again, angles matter is kind

762
00:36:35,000 --> 00:36:37,960
of is what we're talking about 
that yes, the majority shoes out

763
00:36:37,960 --> 00:36:40,080
there, unless it's a pure 
orthopedic shoe with somebody 

764
00:36:40,080 --> 00:36:43,760
with balance issues really 
should have a bevel to mimic the

765
00:36:43,760 --> 00:36:47,320
heel rocker of the foot. 
It's important mechanism for 

766
00:36:47,320 --> 00:36:50,520
efficiency with gait is a very 
normal part of the human 

767
00:36:50,520 --> 00:36:52,160
anatomy. 
And especially as shoes are 

768
00:36:52,160 --> 00:36:54,760
getting higher and higher in 
stack heights, you need to try 

769
00:36:54,760 --> 00:36:57,360
to replicate that if it's going 
to feel really clunky and not 

770
00:36:57,360 --> 00:37:00,120
very comfortable. 
That said, there's a balance, 

771
00:37:00,120 --> 00:37:01,680
right? 
Somebody like me might like a 

772
00:37:01,680 --> 00:37:04,240
huge poster louder one because 
that really helps roll me 

773
00:37:04,240 --> 00:37:06,320
forwards, gives me a little bit 
more stability. 

774
00:37:06,600 --> 00:37:10,120
Someone like David might need 
not need as big of a bevel and 

775
00:37:10,120 --> 00:37:12,120
certainly not as big of a poster
louder one. 

776
00:37:12,120 --> 00:37:14,360
That might be a little bit 
better to have it just be 

777
00:37:14,880 --> 00:37:17,120
slightly smaller or just a 
little bit more moderate like 

778
00:37:17,120 --> 00:37:20,640
you know, everything kind of in 
moderation so to speak. 

779
00:37:20,680 --> 00:37:23,320
But that's kind of our 
complicated way of saying it 

780
00:37:23,320 --> 00:37:25,120
depends. 
But hoping that the helps give 

781
00:37:25,120 --> 00:37:27,920
you a little more clarity as to 
why we talk about bevels and why

782
00:37:27,920 --> 00:37:30,160
they are really important to 
talk about. 

783
00:37:30,840 --> 00:37:33,600
Did I miss anything on that? 
Did we miss anything? 

784
00:37:33,760 --> 00:37:36,320
I I think, I mean we just talked
about heel bevels for 40 

785
00:37:36,320 --> 00:37:38,280
minutes. 
I know that's pretty impressive.

786
00:37:38,280 --> 00:37:40,640
That is pretty impressive, I. 
Would have thought I mean, you 

787
00:37:40,640 --> 00:37:43,160
know, we that's a more 
impressive that we actually able

788
00:37:43,160 --> 00:37:45,520
to condense it down to 40 
minutes not spend like 4 hours 

789
00:37:45,520 --> 00:37:48,840
talking about this, but. 
I was a little curious to see 

790
00:37:48,840 --> 00:37:51,280
how this would go for the 
listeners that have been here 

791
00:37:51,280 --> 00:37:53,320
for a while. 
You guys know how passionate 

792
00:37:53,320 --> 00:37:55,000
client can get about heel 
bevels. 

793
00:37:55,520 --> 00:37:58,400
I was getting ready to pull some
popcorn and just like sit back 

794
00:37:58,400 --> 00:38:02,640
here and just let you go and 
just and just see what happens 

795
00:38:02,640 --> 00:38:04,800
on this wild ride. 
But we've kept it contained. 

796
00:38:05,320 --> 00:38:08,440
I think years of doing this 
podcast and also teaching and 

797
00:38:08,440 --> 00:38:11,000
watching students get bored as 
you drone on or patients get 

798
00:38:11,000 --> 00:38:13,000
bored, it's like, all right, we 
got to like wrap this up. 

799
00:38:13,320 --> 00:38:15,840
I thought we were going to be 
done like at 2025 minutes and I 

800
00:38:15,840 --> 00:38:17,600
realized, Oh my gosh, we have 
all this other stuff we got to 

801
00:38:17,600 --> 00:38:19,880
talk about. 
But as always, we hope this 

802
00:38:19,880 --> 00:38:21,680
helps. 
We are always putting out new 

803
00:38:21,680 --> 00:38:24,240
content and there's many, many 
different avenues that you can 

804
00:38:24,240 --> 00:38:28,480
see, watch, observe, read, 
whatever, whatever you take in 

805
00:38:28,840 --> 00:38:31,960
on social media and other areas.
Obviously the biggest area is 

806
00:38:31,960 --> 00:38:34,160
our website where we produce the
most content, whether it's 

807
00:38:34,160 --> 00:38:37,320
reviews, guide, anatomy 
discussions, all this kind of 

808
00:38:37,320 --> 00:38:38,640
stuff. 
Talking about shoes and how they

809
00:38:38,640 --> 00:38:40,600
impact us. 
We obviously have a YouTube 

810
00:38:40,600 --> 00:38:42,200
channel. 
We have different avenues for 

811
00:38:42,200 --> 00:38:46,120
the podcast, for Spotify, 
iTunes, and what have you. 

812
00:38:46,240 --> 00:38:48,760
We also got a hop and LinkedIn 
page. 

813
00:38:48,760 --> 00:38:51,440
And I got to keep giving Bach 
the shout out for that because 

814
00:38:51,440 --> 00:38:53,320
it's actually like taking off 
and it's really exciting to 

815
00:38:53,320 --> 00:38:55,800
watch that there and connect 
with a lot of the people in the 

816
00:38:55,800 --> 00:38:58,240
industry there. 
But again, you can find us 

817
00:38:58,240 --> 00:39:00,400
anywhere. 
As always, really hope this 

818
00:39:00,400 --> 00:39:03,640
helps you explain kind of what's
either going on with your body, 

819
00:39:03,720 --> 00:39:08,120
what's going on with shoes and 
as always, keep asking questions

820
00:39:08,120 --> 00:39:08,520
and stick.
