1. Place each foot inside a TRX strap so that the TRX hangs vertically.
2. Start in a push-up position with your hands directly beneath your shoulders and your feet shoulder-width apart.
3. Keeping your torso stable, slowly draw one knee toward your chest.
4. Return your leg to the starting position.
5. Repeat the movement with the opposite leg.
6. Continue alternating to complete the set.
Be sure to: Keep your stomach tight.
You should feel it: Working your shoulders and torso.