ONE ARM MEDICINE BALL CRUNCH

TIPS: Focus on doing a slow and controlled movement. Don't separate your lower back from the floor when you do the exercise.

STARTING POSITION:

Lie flat on a ab bench with your legs clamped. Your knees should be at 90º. Grab a medicine ball with your right hand and extend your arm towards the ceiling. Contract your pelvic floor and core.

MOVEMENT:

Push your lower back down towards the floor and use your abdominal muscles to roll your shoulder blades off the bench while you exhale. Keep your arm with the ball up at all times. Return to the starting position in a smooth movement. Repeat the movement for the specified amount of repetitions and then switch sides and repeat with the other arm.