The case against Flipflops.

From the NY Times Health Blog:

“We found that when people walk in flip-flops, they alter their gait, which can result in problems and pain from the foot up into the hips and lower back,’’ said Justin Shroyer, a biomechanics doctoral student who presented the findings to the recent annual meeting of the American College of Sports Medicine in Indianapolis.

Flip-flop wearers took shorter steps and their heels hit the ground with less vertical force than when the same walkers wore athletic shoes. People wearing flip-flops also don’t bring their toes up as much as the leg swings forward. That results in a larger angle to the ankle and a shorter stride length, the study showed. The reason may be that people tend to grip flip-flops with their toes.

Mr. Shroyer notes that he himself owns two pairs of flip-flops, and the research doesn’t mean people shouldn’t wear them. However, flip-flops are best worn for short periods of time, like at the beach or for comfort after an athletic event. But they are not designed to properly support the foot and ankle during all-day wear, he notes.

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