Mobility · New to it
Open Book
A side-lying rotation that opens your top arm like the cover of a book, moving your upper back through rotation.
Demo by Skye, an AI coach.
- Works
- upper back; also chest, obliques, shoulders
- Kit
- Mat
- Dose
- 6 to 8 reps each side
It goes into the workout in progress at the Bench, as a new group in its main set.
Set up
Lie on your side with hips and knees bent to 90 degrees, knees stacked, and both arms straight out in front at shoulder height, palms together.
While you move
- Knees stay stacked
- Open the top arm wide
- Eyes follow your hand
- Breathe out as you open
Avoid
- Letting your top knee slide back
- Forcing the arm to the floor