This multitasking exercise from Jen Widerstrom, a trainer on The Biggest Loser, works both your inner and outer thighs and will help tone your biceps, too. Feel free to use an exercise band on the higher end of the resistance scale since your lower body will be doing most of the work—Widerstrom recommends a blue or black band. And remember to keep your core engaged during the entire move.
Try this move: Side Step With Isolated Bicep Curl
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