This routine is good for strengthening your abs and back muscles, while also working out your lower body.
- Sit straight with your knees together.
- Keep your toes pointed and lift your hands and bring them behind your head.
- Bracing your abs, hinge back a bit so that your shoulder blades barely touch the chair’s back.
- Cross your right elbow and your left knee.
- Begin returning to the starting position.
- Switch sides and repeat.
- Perform 20 alternating reps on both sides (40 total).