Mobility
Thoracic open book
A TrainAI movement demonstration with equipment and setup cues.

How to do thoracic open book
spineRepetitionshome · gym
Equipment
No equipment required.
- Lie on left side, knees bent and stacked in front at 90 degrees, arms extended forward together at shoulder height.
- Lift right arm and rotate chest open toward ceiling, bringing right arm back toward floor behind, then return to stacked hands.
- Knees stay stacked and still, head follows gently.
- Repeat on the other side with the same controlled range.
Choose a comfortable range and use secure equipment. The illustration is a movement reference; stop if a movement causes pain.