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The most efficient way to pack on muscle, according to a sports science researcher
T3 via Yahoo News· 4 months agoDumbbell legs training, Young strong fit muscular sweaty man with big muscles strength cross workout...
How to Calculate Your One-Rep Max (Without Actually Maxing Out)
Men's Health via Yahoo News· 4 months agoFinding your one rep max is a good gage of strength. Here's how to calculate your one rep max, how...