[pct-l] Ankle Strengthening

[Yoshihiro Murakami]

Dear Robert


I have searched the evidence of ankle support of boots, and found a
large-scale meta analysis.
The external ankle support devices proved to prevent injury.

Check such a device:

http://bit.ly/z6KxKp



2012年1月16日21:03 Yoshihiro Murakami <completewalker at gmail.com>:
> Dear Robert
>
> It may be my turn, because I am the exceptional man, wearing mountain boots.
>
> Confronted to the boots vs shoes discussion, I searched several
> scientific papers. And I found several important points.
>
> 1. "one pound on your foot equals five on your back" is wrong. This
> wrong idea was found in "Complete Walker I, and IV", and Townsend's "
> the backpacker's handbook", because they cited the classical
> experiments, carried out with very heavy boots ( 5 Kg and backpack
> weight was 25 Kg ). These are very different from recent boots. Many
> boots weight less than 1 kg.
>
> 2. According to the recent research, the energy consumption of boots
> is equal to that of shoes when we are walking at 4-5Km/hour speed,
> because our walking is described by the dynamic walking model. Most of
> the time, our leg behave as like inverted pendulums.
>
> 3.  High-top boots  reduced peak Achilles tendon tension by an average
> of 9.9% when compared with low-top shoes. This research design was
> ideal one. So, This may be a firm scientific evidence.
>
> 4. But boots affect gait, and increased the joint loading at the knee.
> So if you wear boots, you need a slight modification of walking style.
>
> 5. There is no evidence of ankle support for boots. Townsend denied.
> But, I think there is some support. So, I am always wearing boots. If
> you wear high-top boots, you feel more supports.
>
> 6. The training at the rough ground may strengthen your ankle, but it
> may take several years, or ten more years.
>
> My recommendation is:
>
>  1. Light weight high-top boots.
>  2. The training on the rough ground with the boots.
>
>
>
> --
> Sincerely
> --------------- --------------------------------------
> Hiro    ( Yoshihiro Murakami  村上宣寛 )
> facebook  http://www.facebook.com/completewalker
> Blogs  http://completewalker.blogspot.com/
> Photo  http://picasaweb.google.co.jp/CompleteWalker/
> Backpacking since about 1980 in Japan
> JMT, 2009, 2010, 2011(half).
> ------------------------------------------------------



-- 
Sincerely
--------------- --------------------------------------
Hiro    ( Yoshihiro Murakami  村上宣寛 )
facebook  http://www.facebook.com/completewalker
Blogs  http://completewalker.blogspot.com/
Photo  http://picasaweb.google.co.jp/CompleteWalker/
Backpacking since about 1980 in Japan
JMT, 2009, 2010, 2011(half).
------------------------------------------------------