Running Barefoot

The pavement begins to warm under the summer Colorado sun as Michael Sandler jogs up Flagstaff Road near Boulder. Normally, this shouldn't concern a runner. Sandler, however, is jogging barefoot.

"When you are barefoot, you are forced to run the way ancient man ran, which is a soft dance," Sandler said. "Even my upper body got stronger."

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mzungo.org says: great, unbiased article, must read!