Recent Blog Posts

Pronation and barefoot running

pronation-imageWhenever we’re selling Xero Shoes at a public event, a few people will come up to our booth, examine our barefoot sandals, and claim (with a strange tone of almost arrogance), “I can’t wear these. I pronate.”

Sometimes they’ll pull out the third party endorsement, “My doctor says I pronate.” Or the less-convincing, “The shoe store did gait analysis on my and said I pronate.”

It’s as if they expect me to say, “Oh, my gosh! That’s horrible! I would never argue with an actual doctor or, even more, a 23-year old who works at a shoe store that sells ‘motion-controlled’ shoes! You  totally can’t wear Xero Shoes, then. In fact, I’m amazed you were able to walk over to our booth!”

Instead, I bite my tongue for a second (so I don’t say something incredibly sarcastic), and then say,

Pronation is not an issue. First of all, many world-class runners pronate more than you ever will. Pronation is part of the natural spring-mechanism of the lower leg.

Now, hyper-pronation (showing weakness) *might* be a problem, but it rarely is. And…

When you run with barefoot style and land on your mid-foot or forefoot, it’s much less likely that you’ll pronate at all, since those ways of landing usually put the foot and ankle in a strong position when you land.

But now I have something else to add to my “pronation isn’t evil” arsenal… SCIENCE!

Aarhus University in the Netherlands just published a study in the British Journal of Sports Medicine called “Foot pronation is not associated with increased injury risk in novice runners wearing a neutral shoe.”

What I LOVE about this study, reported at ScienceDaily.com, is that it studied almost a thousand runners for an entire year. That’s a good amount of data to work from.

And, in short, what they discovered is that putting runners in non-supportive shoes did not increase their chance of injury (and this is with them NOT switching to a mid-foot or forefoot landing, which arguably reduces their pronation).

Says Rasmus Nielsen, the PhD student who led the study, “This is a controversial finding as it has been assumed for many years that it is injurious to run in shoes without the necessary support.”

My addition to that would be, “Well it was ‘assumed’ for many years because the companies making motion-control shoes TOLD us that and we believed it.”

Now, admittedly, the study is not the be-all-and-end-all studies about pronation. Even the researchers say that they “still need to research the extent to which feet with extreme pronation are subject to greater risk of running injury than feet with normal pronation.” And, I’m going to contact Mr. Nielsen and suggest he look at barefoot running in the future.

But, I’m never one to complain when another nail is added to the coffin of, well, foot coffins ;-)


Lee Chase’s “Extra Comfy” Huarache Tying Style

Lee Chase's Barefoot Sandal Tying Method

Lee Chase developed this variation of one of the tying styles on the Tying page (third from the right).

The only thing I’d do differently: Take the end of the lace and put it back through the half hitches to lock it in place.

First, a few tying tips and notes:


Tying the Figure-8 knot:


Lacing tips:


Lee’s “Extra Comfy” style

Step-by-Step instructions coming soon!


A new foot strengthening game

We’re selling Xero Shoes at the Hanuman Yoga & Music Festival in Boulder this weekend and while playing with some Earth Balls, Cindy and I came up with a great foot strengthening game. Whether you’re a barefoot runner or barefoot walker, this is a great game to play :-)

Try it! Or come up with a variation!

Let’s see how you do.


Barefoot running efficiency

Is barefoot running more or less efficient than running in shoes?

Who cares?! Barefoot is fun! And we think barefoot is good for you, too.

Besides, the recent studies that say barefoot is less efficient are riddled with holes (including that one only showed that “barefoot-style” running was less efficient for people who had no experience with it!

Anyway, I think this equation sums up the benefits of being barefoot or in Xero Shoes ;-) .

And since it’s math, you know it must be true!

do-the-math2


The Death Of Barefoot Running

is barefoot running good for youImagine for a moment that you did extensive research into something, only to conclude that you need more research before you could make a meaningful statement about that something.

Is that news? I don’t think so.

Would any newspaper publish a headline: Scientists discover: We’re not sure yet!

Nope. No news is not news.

So, I’m once again dumbstruck by the latest article from the New York Times, “Is Barefoot-Style Running Best? New Studies Cast Doubt”

Let’s cut to the end of the article first, where it says:

None of this new science, of course, proves that barefoot-style running is inadvisable or disadvantageous for all runners; it proves only that the question of whether barefoot is best is not easily answered.

In other words, “Studies show we need more studies!”

Who are barefoot runners hurting?

To be fair, I’m okay with “Studies show we need more studies.” It’s not news, but it’s accurate.

So let me ask this: Why take what is essentially a barefoot bashing tack in the headline with “New Studies Cast Doubt?”

Sure, some people will argue that the headline is simply saying “Hey, we’re not sure.” But, is it really?

The clear implication is that there was proof that barefoot was great for you, and now science says, Not so fast!

This is like asking, “Do you know if your neighbor is a thief?” It’s not saying that your neighbor IS a thief, but it suddenly plants the doubt in your mind.

So, why the need for the mildly sensational and misleading headline?

If you’ve been reading this blog, you’ll know this is a pattern: Some small, constrained, or poorly-designed study suggests that we need to do more research into barefoot vs. shod running, and the headline says “Running Barefoot might ruin your credit and lead to bad hair days!”

It’s like: “All you people who think barefoot is cool… we’ll maybe you’re wrong.” Even if that’s true…

Argh.

Analyzing the bare foot analysis

Now before we jump back to the end of the article, which says something I agree with — more study is necessary, let’s look at a couple of points in the article itself.

First, it comments on “the most definitive” of the new studies that says, in essence, “Landing on your forefoot is not as metabolically efficient as heel striking in in RACING FLATS!”

Oy. Where to begin?

First, is the idea that barefoot running = landing on your forefoot.

That’s a straw man argument. Talk to those of us who’ve worked with thousands of barefoot runners and we’ll tell you that:

  1. There are MANY ways to land when running barefoot. Forefoot landing is only one of them.
  2. There are many ways to land on your forefoot, and not all of them are the same. For example, how high is your heel off the ground when you land? Does your heel ever touch the ground? If so, when, and for how long?
  3. It’s possible to have your heel touch the ground first, but still be a “mid-foot striker” (that is, your heel makes contact, but there’s practically no force on the ground until your mid foot touches down).

In other words, how they’ve defined “barefoot-style” for the sake of research isn’t how “barefoot-style” is defined by most of us who actually run barefoot and teach barefoot running (and who’ve given it a lot of thought).

You heels!

Next, the study has the runners switch from forefoot to heel striking, or vice versa, to compare efficiency… while wearing RACING FLATS.

While this may be an interesting bit of info about heel-striking in shoes, vs. forefoot landing in shoes:

a) What does this have to do with BAREFOOT RUNNING?

b) The argument from barefoot runners is not that heel-striking is more or less efficient, it’s that heel striking can INJURE YOU.

This was the thrust of Daniel Lieberman’s research at Harvard: landing on your heel, even in a padded shoe, sends an “impact transient” spike of force through your joints, whereas a forefoot landing eliminates that force through your joints…

IF…

If it’s done correctly.

Once again, the study doesn’t mention whether the runners were over striding or not, regardless of whether they were heel-striking or forefoot striking.

In other words, not all heel striking is the same. It’s possible, as I mentioned above, to land heel-first, but with your foot properly positioned under your body in a way that doesn’t cause that impact transient force spike.

In short, the variables (heel-striking vs. forefoot striking) and the measurement of them were too limited to come to a definitive conclusion… oh, right, that’s what it says at the END of the article, after suggesting in this section that barefoot is bogus.

But wait, there’s more…

Next, the article  says that 5 studies showed that switching to minimalist, barefoot-style footwear did not improve efficiency.

a) How many times do I have to say this: Barefoot-style and minimalist are not the same as barefoot!  Most of the minimalist/barefoot shoes that are available are about as close to barefoot as a pair of stilts. Just because a product SAYS it’s “barefoot” doesn’t mean it is.

b) Xero Shoes are consistently rated as the closest thing to barefoot (we were not tested in these studies)… and even our “barefoot sandals” are not the exact same as barefoot, because you feel the same sensation — the rubber sole — rather than the myriad varied sensations you get when you’re totally skin-to-the-ground.

c) What’s the big deal about efficiency? As one commenter pointed out, there are more than a few world champion runners who forefoot strike. Clearly their lack of efficiency hasn’t hurt them!

Honestly officer, I’m not drunk

Then the article adds, “The news on injury prevention and barefoot-style running is likewise sobering.”

Again, the implication is that here’s some big news that’s about to tell you that running barefoot will kill you in some way. But what’s the “sobering” news?

It’s the BYU study that we previously ripped apart, and an informal poll where 1/3 of the participants at the annual meeting of the American College of Sports Medicine had “tried barefoot-style shoes” and 1/3 of them had “suffered injuries” that they ATTRIBUTED to the new footwear.

So, now it’s not barefoot-style running, it’s the footwear itself that caused the problems? Make up your mind.

Or, better, THINK a little

FIFTY PERCENT of runners get injured every year. Almost 80% of marathoners get injured every year.

If only 1/3 of the people who went minimalist got injured… THAT’S BETTER than the average!

And  what about the happy barefoot runners?

I’m the first one to say that anecdotes are not the same as data. A story is not the same as research. (Unless, of course, you’re at the ACSM meeting, where a poll of people who claim that barefoot running hurt them — even though most of them probably never put their bare skin on the ground — counts as something worth publishing)

But that doesn’t mean one should ignore the thousands of stories — we get at least one every day — from people who took off their shoes and were able to run pain-free for the first time in years.

Further, there are many reasons to get out of your shoes beyond being able to run fast, or run efficiently, or even to run at all.

Why is running touted as the barometer for all things barefoot?

And, speaking as a sprinter — I don’t even like to go around the turns on a track, let alone do a 5k for the charity du jour — why is distance running the be-all-and-end-all of running?

Follow the bare foot money!

Finally, here’s a question I’ve never heard anyone ask:

Who is paying for all this “sobering” research that, when push comes to shove, is only saying, “we need more research”?

We know there’s a bias when labs are funded by companies with a vested interest in the outcome. When a lab studies Product X, and that same lab receives money from Product X’s manufacturer, a disproportionate percentage of the results endorse Product X. When the same studies are done at labs that don’t receive funding from Product X’s manufacturer, WAY less frequently do the studies endorse Product X.

The media is usually fast to point out when a drug study came from a lab that receives significant funding by the company that manufactures the drug in question.

I’ve seen none of that reported in the “barefoot is EVIL!” articles.

Do we think reality is any different when we’re talking about feet and not pharmaceuticals?

I know of more than a few labs that have received significant amounts of revenue from Nike, Adidas, and Reebok. Do we actually think that running studies are less influenced by money from “Big Shoe”?

I’m a scientist at heart. I’m interested in the facts.

If I saw a GOOD study that said running or walking barefoot will decrease your Donkey Kong scores and cause hair to grow on your knuckles, I wouldn’t argue. I’d weigh the value of video games and hirsute hands against the fun and freedom I feel when I’m out of shoes and either barefoot or in Xero Shoes.

Until then, I guess I’m destined to rant about studies with bad or no controls, and reporters who get all hyperbolic just to get readers, when all they have to say is, “Wouldn’t it be great to do more research into this barefoot running thing?”


Barefoot sandals are our life!

When Lena and I started Xero Shoes (then, Invisible Shoes) in November 2009, we thought, “Oh, this’ll be a nice little hobby business.” We never anticipated it growing as much as it has, or working as hard as we work ;-)

After appearing on Shark Tank last night, we’ve been SWAMPED with orders, emails, phone calls.

I’ve been awake and on my feet (I have a treadmill desk) for about 40 hours (don’t even ask me about the list of technical problems we ran into). Lena’s working on 1/2 the sleep she normally gets. And everyone else in the office — Bill, Kim, and Rudy (Dennis is in Asia working on some very exciting new products) — put in a great effort today.

Here’s what 500 orders looks like (and we’ve got another 200 left to go!). Our mailman is going to hate us on Monday ;-)

Barefoot Sandals heading out the door

In the middle of my brain-deadedness, I want to say how grateful we are to share Xero Shoes and the idea of natural movement with everyone. Getting dozens of emails every day from people who are doing everything from taking a stroll to running an ultramarathon… well, it makes these long days worthwhile. So, THANKS!

A quick reminder that our Shark Tank Sale is going on until 11:59 MT on Friday, June 7th… save 20% on our DIY Barefoot Sandal kits. Enjoy… and FEEL THE WORLD!


Xero Shoes on Shark Tank… AGAIN!

Xero Shoes Barefoot Sandals on Shark TankWe just got the word from ABC and Mark Burnett Productions that our Shark Tank episode is re-airing on Friday, May 31st.

Frankly, we’re still reeling from the effects of our original air date in February. We sold over 3,000 pairs of Xero Shoes barefoot sandals after the show aired… and that was in the middle of WINTER!

Lena and I are tremendously grateful for all the things that have happened as a result of being on the show (if you haven’t seen it yet, I won’t spoil the surprise of what happened). Thanks to getting recognized (at events where there are a lot of entrepreneurs, we’re like rock stars :-P ), and thanks to the exposure, we’ve met dozens of people who are helping us improve our products, our marketing, our business… everything but our ability to take a day off.

So there are a lot of changes coming up. You’ll see the look and feel of the website changing, some new ways to discover and share lacing and tying styles, contests that you can enter (What can YOU do with Xeros?), and some new products that are on the way.

We can’t wait to see what the next few months bring. We’re always excited to see how barefoot living (which is more than just running barefoot) spreads, how one family member gets a pair of Xero Shoes and then everyone else in the family orders a pair a week later.

And we’re thrilled that we’ve been able to provide more support to the Tarahumara Children’s Hospital Fund than we ever thought we could.

Watch us on Friday, and join in on Twitter and Facebook and Instagram. Tell everyone what you like about your Xero Shoes! On Twitter, use #sharktank and @xeroshoes.

 


A lacing tip for your Xero Shoes

Here’s a fun lacing tip/trick you can use with your Xero Shoes.

Basically, it’s making a “lacing loop” out of a small section of our new laces.

There are two reasons you may want to do this:

1) It’s a cool decorative element (especially if you use a different color for the loop than you do for the rest of your lacing), and lets you re-lace your Xero Shoes really fast.

Here’s what our sales manager, Rudy, did with this idea, when he added a loop at the ankle holes and toe hole:

Rudy's Xero Shoes barefoot sandals

2) The other thing this lacing loop is good for is “addressing” a form problem.

A very small number of people will create abrasion at the outside ankle hole which wears out the lace at that spot (FWIW, I and all the Xero wearers I know have put tens of thousands of miles on their shoes without ever wearing out a lace).

If you do this, you can “fix” the problem, by attending to your gait (and stopping creating the extra horizontal friction that causes the problem).

OR… you can “address” the problem by making the lace more resistant to abrasion. One way to do that is by rubbing some Shoe Goo on the lace. The lacing loop is another.

The video below explains how to make the lacing loop and why you would use it.

I can’t wait to see what you do with this idea!



Ah, Knots – a huarache tying decoration

One cool thing you can do with the “extra” lace on your Xero Shoes huaraches sandals is what I like to call “Ah, Knots!”

For those of you who are hip to different knot names, you’ll recognize this as just a bunch of half-hitches tied down the length of the toe strap. This idea came to us from Mark Myers, a.k.a. Barefoot TatMan (bonus points if you know why he has that name and what tatting is).

Mark shows how to do Ah, Knots starting at 8:00 into the video.

After I’ve gotten to the “end” of the toe strap, near my toes, I take any leftover lace and tuck it into the knots on the underside.

Enjoy!

 

 


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