Targets: Upper back and abs
Lie facedown on stability ball, holding a dumbbell in each hand with elbows slightly bent and palms facing in, and extend legs behind you hip-width apart to balance on toes.
- Maintaining slight bend in elbows, raise dumbbells out to sides up to shoulder level, palms facing floor, then lower to start. (MAKE IT EASIER: Sit on a bench and fold torso over thighs so that back is nearly parallel to floor, then lift dumbbells from shin height out to shoulder level.)
- Do 12 reps.
Tip: To decrease the core challenge, place your feet farther apart on the floor. To make it harder, bring your feet together.