Flip the push-up over, and you get this move that really works the tris.
- Sit on the ground with your knees bent and your hands behind you, with your fingertips pointed toward your butt. Lift your pelvis off the ground, straighten your elbows, and shift your weight back so your shoulders are directly over your hands.
- Slowly bend your elbows to lower your pelvis toward the floor, then press into the floor to straighten, but not lock, your elbows; this completes one rep.
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