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Toe Shoes, Barefoot or Minimalist Shoes, and Vibram FiveFingers Reviews, News, Forums | Birthday Shoes - Latest Comments on Digging into Daniel Lieberman's Barefoot Running Research





 



Trever [Visitor] in response to: Digging into Daniel Lieberman's Barefoot Running Research

Tue, 23 Aug 2011 03:21:29 +0000

Somehow even with my bulky old shoes I always ran with a forefoot strike. I have no idea how but heel striking is something I have never done at least in my memory




Cathy [Visitor] in response to: Digging into Daniel Lieberman's Barefoot Running Research

Mon, 27 Jun 2011 19:53:49 +0000

Love my five fingers but had an Achilles problem after running stairs. Definitely indexed pain and swelling which has taken about two months to repair. The extreme flexing while running on stairs and the placement of the back of the shoe right over my Achilles was the culprit. Anyone else experience this? I will try another style to see if it hits lower on my heel. Disappointing. Great for yoga though (after the soreness was gone from trauma).




fiona [Visitor] in response to: Digging into Daniel Lieberman's Barefoot Running Research

Mon, 30 May 2011 19:05:04 +0000

I am fascinated by all this. I always thought I was rubbish at running - in school, trying to catch a bus etc. Then I realised that I could sprint pretty fast whenever I was on the beach on holiday (not so much in the really soft sand, obviously, but near the sea). I started to noitce how I was running on the beach - more forward propulsion, almost without my heel ever touching the ground and I tried to mimic it at other times. - I do have one pair of shoes I can run in - they are my coco-rose shoes (designed to wear when your feet get tired out partying) and they do indeed have no heel. I am now thinking of buying some vibram five fingers having tried on a pair my friend has - unbelievable. Hoping this might help my back problems too!




Jennifer [Visitor] in response to: Digging into Daniel Lieberman's Barefoot Running Research

Tue, 05 Oct 2010 11:33:28 +0000

I was challege by this article. I tried to walk and run. I obsered that when I walked I barely used my heels while in running I used my toes. This article make sense to me because I'm a runner athlets in my school. I can choose a better shoes next time. Thanks for this article.




Craig Nevin [Visitor] in response to: Digging into Daniel Lieberman's Barefoot Running Research

Mon, 26 Jul 2010 17:43:43 +0000

The research into barefoot walking is available at www.dissertation.com/book.php?method=ISBN&book=1599423294 or the full pdf version from craig.nevin@gmail.com

The Lieberman et al's research that was published in Nature, studies only 16 subjects on an AMTI force plate which has only 4 sensors, each located at least 200mm from the shod heel.

I have by comparison studied 54 barefoot subjects with about 250 sensors, each sensor being located within one millimetre of the anatomical heel.

My thesis contains a mine of detail for those interested in solutions rather than vague opinions.




jheumann [Visitor] in response to: Digging into Daniel Lieberman's Barefoot Running Research

Fri, 12 Mar 2010 04:44:15 +0000

Craig,

Does your 'research' tell is anything asides from pressure = force/area?

What is your point, except to say that the absolute effect of forces MAY be less than presented? If you communicate your point a little better or apply it to this discussion, that would help. At this time you're not addressing the discussion in an applicable manner. Thanks.




Craig Nevin [Visitor] in response to: Digging into Daniel Lieberman's Barefoot Running Research

Tue, 09 Mar 2010 09:33:21 +0000

Shoddy Science
The Nature article is typical of the horrendously poor standard of biomechanical research into running that is exposed in nmy PhD thesis, Initiation and Control of Gait from First Principles.
The first requirement fo accurate reporting of forces, is the drawing of a free-body diagram. The Nature article reports a heel-strike transient force. However, this force is measured at several locations inside sensors buried a few centimeters below ground under a flat steel plate.
There is no direct measurement of the forces at the actual heel in the Nature article.
In my PhD study I measured the forces directly under the heel using a pressure plate. The average forces from 54 subjects and 270 heelstrikes reveal that the phenomenon, blithely referred to as a heel impact transient, does not occur at any biological location in the heel!
The heel impact transient is simply an artifact of the rapid spreading of the forces as the heel squashes onto the ground. Despite the total force peaking, the actual force measurements at the various biological heel localities DECREASE during this period. The net decrease in effect "takes a bite out" of the force curve.

Any shoe that spreads the forces would produce the same artifact.

The so-called science associated with shoe design is very shoddy indeed (excuse the pun :) But excusing the pun does not excuse the pain inflicted by shoddy research.




Rana [Visitor] in response to: Digging into Daniel Lieberman's Barefoot Running Research

Fri, 29 Jan 2010 19:53:26 +0000

Anyway, I'm curious if anyone else has noticed that they forefoot strike while running or walking in VFFs or barefoot, but inadvertantly heel-strike in less minimalist footwear, and in particular as with shoes with elevated heels.

Oh, absolutely. Some of it is, I think, force of habit, some of it is the heel, and some is - I believe - the fact that many shoes have a high heel cup in the back, making it easier to flex your feet than to point them.

I'm harder on my heels when walking than running, though - when I run it's almost always up on the toes, regardless of the shoes. When I'm wearing high heels (which I don't very often) you have to, or you'll break your neck.