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Topic Started: Mar 3 2016, 09:36 AM (5 Views)
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Altra Instinct Jr. Altra is a relatively michael kors outlet usa sale new company and they specialize in making ¡°zero drop,¡± foot shaped shoes (i.e., wide in the toebox). Zero drop means that the sole of the shoe is level from heel to forefoot, which is not the case for the vast majority of shoes on the market. Before they had even launched their first adult shoe, the founders of Altra told me that making a good kid¡¯s shoe was a top priority. Last year they released their first model: the Altra Instinct Jr. They sent me pairs for my two older kids to try out, and I have been quite impressed! (Disclosure: these shoes were media samples provided free of charge by Altra).

Regarding injury risk due to ¡°overpronation,¡± Griffiths has this to say: It is a commonly held belief that pronation will increase the risk of lower extremity injury. However (perhaps surprisingly) this is not particularly well supported by the literature, with very few studies which actually show pronation increases injury risk. Instead, there are numerous pieces of work which have shown there is no association with foot type and injury and some research exists which even suggests that a michael kors watches sale pronated foot type is actually protective against injury.

I¡¯ve long wondered which aspects of a shoe like those made by Hoka might benefit runners dealing with forefoot pain. Is it the thicker midsole cushioning? Is it the wide sole? Is it the rockered design of the sole? Something else? Well, we now have a bit of evidence that might start to clarify things.

I do have strong reservations about the max cushioning trend and how it will influence running form, but at the same time have seen many benefit from a move into shoes like Hokas (my wife, my friend Nate). I think what we are seeing here is a very similar situation as happened with minimal ¨C some people tried the shoes and reported benefit, a niche brand (Vibram, now Hoka) caught on with a subgroup of the running population, and then the big brands move in if the trend has legs. After a few years things will shake out and the niche will remain and the big players will move on to the next big money maker.

Taken together, these two studies show that minimal shoes increase pressures under the forefoot, and rocker shoes decrease pressure under the forefoot relative to a traditionally cushioned running shoe (I believe the same traditional shoe was used in both studies). This suggests a potential benefit of a rocker sole shoe in the management of conditions that cause forefoot pain while running.

What they found was that individuals in the conventional shoe group saw no change in toe flexor strength, whereas the Nike Free group saw a significant 20% increase in toe flexor strength. The experimental group also saw a reduced path of motion of the 1st metatarsophalangeal joint, which they suggested could be related to the higher strength of th michael kors watch cheap sale e toe flexors ¨C stronger flexion of the toes would lead to less dorsiflexion (upward tow movement) during gait. With regard to MRI results, they found that the flexor hallucis longus (the muscle that flexes the big toe) was significantly larger after the experiment in those assigned the Nike Free. Although not significantly larger (very close), they found that both the abductor hallucis (the muscle that pulls the big toe away from the second toe) and tibialis posterior (a muscle the supports the arch and resists pronation) showed a trend towar michael kors bag cheap sale d size increase after the experiment for the Nike Free group.
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