Swiss Ball Russian Twist
Sets: 2-3 Reps: 12-15
Lie back on a Swiss ball, and raise your hips until they’re level with the floor. Cup one hand over the other, and extend your arms straight over your chest. Twist your torso to one side, and then the other while keeping your balance.
Sets: 2-3 Reps: 15-20
Assume the stance you’d use at the tee, and raise one leg off the floor. Keeping your arms extended and straight, and your back flat, rotate your torso to one side and then the other.