Trunk Twist
Lie on your back and hold a medicine ball (or any weight) with both hands. Lift both legs and your upper body up from floor, balancing on your buttocks. Twist your upper body from side to side in smooth motion.
Lie on your back and hold a medicine ball (or any weight) with both hands. Lift both legs and your upper body up from floor, balancing on your buttocks. Twist your upper body from side to side in smooth motion.