- Put your hands on the chair (either the back or the seat, depending on your height). Move your feet back and suspend yourself against your hands as if you were to do a push-up from the chair. Now bring your right knee toward your left shoulder, then extend the leg back. Bring your left knee toward your right shoulder and extend back. Do 25 repetitions in quick succession.
- Put your feet on the seat of the chair, and move forward until your knees are bent at a 90-degree angle. Do crunches. For more of a challenge, twist the crunches to the right and left.
- Sit in the chair and raise your left leg while extending it. Hold for 15 seconds, then lower your leg and repeat with the right leg. Next, try raising and extending both legs and holding for 15 seconds












