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A 10-mile Run @ 8:31

(2015-01-25 19:13:30) 下一個
At 2:30PM, I didn't get into the "zone" as fast as yesterday
morning and got out of it faster. (I'd blame the heat and the sun.)
Mile 10 was very difficult and it took 9:11! I wasn't keen on
keeping going at the end of the run.

I kept landing on the outer front edges of my feet, especially
on the left (I even got one blister there today.) I first noticed this
when hand-washing the Merrells yesterday and got a chance
to examine the soles closely: the outer edges were wearing out.

I did a little research and here's what a Runner's World
article has to say about this
(http://www.runnersworld.com/running-shoes/whats-your-wear-pattern)

         Edge Wear: Tread loss is concentrated at the outside of
         the shoe. In extreme cases, there will be holes in the
         upper where the runner's foot has broken through.

          Diagnosis: This is the usual wear pattern of
         supinators–runners who don't pronate or roll their
         ankles inward enough and tend to strike the ground with
          the outside edges of their feet. High, rigid arches that
         restrict the foot's inward roll are a common cause of
         supination.

         Recommendation: Landing on the outside of the foot puts
         a lot of pressure on the leg, so these runners tend to
         be candidates for stress fractures. They should look for
         well-cushioned shoes, like the Nike Air Pegasus 2007+
         (see the Fall Shoe Guide)that absorb some of the
         pounding, and they should avoid stability shoes.

I wonder why they only recommend shoes but say nothing about
improving landing. Could this, too, be about money?

According to Tim Noakes's "The Lore of Running," (page 763)
I am an extreme supinator. But that book doesn't talk about
how to fix it.

Thanks to Google, I quickly located Dr. Blake's blog site.
Over supination, according to his 2012 post "Biomechanics
for the Podiatrist: Thou Shall Not Varus,"

         has been blamed as a cause or aggravating factor in more
         than 17 injury pain syndromes, including peroneal
         tendinitis, ilio-tibial band syndrome, ankle sprains,
         stress fractures, knee and hip joint arthralgias, low
         back pain, etc.

So that, in addition to weak glutes, might be another root
cause for my ITBS.

One solution the doctor suggests is to cut into the in-sole
and put wedges to compensate. I hate that idea. For one
thing, I'm a frugal person and want my shoes to last.

This post
http://www.drblakeshealingsole.com/search/label/Supination%20Exercises%20for%20better%20Stability
talks about exercises for the ankle to fix supination. I'll
do it religiously until the shoe wear pattern is fixed.
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