What:An exercise promising greater efficiency and speed in your running that uses two Bosus (or is it Bosi?). Anywho, for this exercise you basically switch your feet back and forth, until you're mimicing running. Long-distance runner Jen makes it look easy)Why it's good: Well, it looks fun, though possibly a chore on your ankles. I've never used a Bosu but want to and most of the Bosu exercises I looked up focused on strength exercises, not on improving a specific activity like running
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