Pilates: Back Arm Rowing

Sit with your knees bent and feet flat on the floor about hip-width apart. Extend your arms straight in front of you, palms up. Your back should be straight, your chest up. Brace your core, curl your tailbone under, and slowly lower your upper body to a 45-degree angle. At the same time, bend your arms to bring your elbows close to your body, closing your hands into fists and pulling them toward your shoulders at eye level. Pause, then reverse the motion to return to start. That's one rep.