YOU DON’T KNOW SQUAT: An old-school move holds the key to unlocking your power—if only you can do it right.

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It seemed like a joke. I spend most of my time experimenting with cutting-edge fitness routines and new training technology. Yet here I was, challenged to do a single, textbook repetition of a classic exercise, one I’d long ago relegated to beefy defensive linemen and World Cup skiers. What was one squat supposed to do […]