TRX straps are everywhere, from your gym to boutique fitness studios. Why they're so popular: Slipping your hands or feet into the handles amps up the toning power of simple body-weight strength moves. Despite their prevalence and payoff potential, maybe you're wondering how to use this training tool. We've got you covered: Do this routine of powerhouse basics to perfect your technique while you zing every muscle.
Your Trainer: Shauna Harrison, Ph.D., an Under Armour athlete in the San Francisco Bay Area
You'll Need: a TRX suspension training system. Find one at your gym, or anchor the at-home version to a door or strong pole
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