Running, we've all do it and I'm sure you've never thought anything about it. It just happens naturally; we crawl, we walk then we run. Wikipedia put it this way, "Running is defined as the fastest means for an animal to move on foot." Yup, pretty much sums it up. But that entry is much longer and I learned quite a bit. Running has three phases: support, drive and recovery. These phases are specific to our legs and feet. I will quickly summarize them here: the support phase is when one leg simply supports our body weight, drive is when that same leg pushes against the ground and propels us forward, and recovery is when the leg loses contact with ground and gives the leg a chance to rest before entering the support phase again. The legs continue in this cycle until you stop running. Who knew running was so complex. Something to think about the next time you hit the pavement.Image - http://www.flickr.com/photos/polet/1082915857/
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