Open-book rotation
Rotate your upper body from a side-lying position.
How to do it
- Lie on your side with knees bent and arms together in front.
- Open your top arm and turn your chest gently toward the ceiling.
- Return slowly and change sides.
Form check
Keep the knees together; the hand does not need to touch the floor behind you.
Make it easier
Use a smaller arc and support your head.
Move within a comfortable range and keep breathing. Stop if a movement causes pain or you feel unwell. Ask a qualified trainer for help with unfamiliar equipment.