Brace your abs and raise your hips into the air as described above, but keep your knees straight. From there, bend your knees and roll the ball back toward you. Keep your hips elevated throughout the set.
1. Sit on the machine and adjust the lever for your height. The pads should tuck under your knee and on top of the lowest part of the front of your leg. Your legs should be at a 90 degree angle. 2. Hold the handles and use your quadriceps to extend your legs straight whilst keeping the rest of your body still. 3. Slowly lower your legs back to the original position.
