This past winter, I’ve done most of my running on treadmills. I should say that I’ve done my run/walks on treadmills as I rarely run continuously anymore, even in races. The more time I spend on treadmills, the more I watch other people walk on treadmills, and too many are doing it just plain wrong.

Huh? How can you walk wrong? You’ve been doing it since you were about a year old. The primary error that spoils the body’s mechanics is holding on to the handrails, especially when walking at a grade. On top of . . .

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