TRX Hamstring Curl

Lie on your back with your heels in the TRX straps and your legs extended, then lift your hips off the floor so your body forms a straight line from shoulders to heels. Keeping your hips up, curl your heels in toward your glutes by bending your knees, then extend back out. Your hips should stay lifted and level the entire time — they're the anchor this exercise is built around. Move slowly enough that your hips don't dip and rise with each curl. If you can't keep your hips up as your heels curl in, that's a sign to slow the pace rather than let your form break down toward the end of the set.