Curtsy Lunges // Stand facing the TRX, holding the handles with your feet hip-distance apart. Reach your left leg behind and to the side of your right leg as you lower into a squat position. Make sure you keep the handles tight during the entire lunge, balancing through your abs. Bring your left leg back to start to complete one rep. Do 10 reps on one side and then switch sides to repeat with your right leg.