• Position physioball on incline bench; lie with stomach on ball
• Keeping legs straight, raise them until body forms straight line
• Lower with control; repeat for specified reps

Sets/Reps: 3x10

Gillett: It’s important to get the glutes and lower back strong, [since] strong glutes take pressure off the back. Don’t hyperextend to where your feet go above your body. Get to straight, relaxing your hamstrings as much as possible.