If you’re looking to improve your thoracic spine mobility and shoulder flexibility, the Open Book with Over Hand (OH) Reach is a great addition to your routine. This dynamic stretch is ideal for warming up before a workout or as part of a daily mobility practice. Here’s how to perform it correctly:
How to Do the Open Book with OH Reach
Step 1: Starting Position
- Lie on your side with your knees bent and stacked.
- Extend both arms straight out in front of you at shoulder height, palms together.
- Engage your core to keep your lower body stable.
Step 2: Begin the Rotation
- Slowly lift your top arm and begin to rotate it across your body.
- As you rotate, your chest should start to open up toward the ceiling.
Step 3: Reach Overhead
- Sweep your top arm in an arcing motion over your head, extending it past your head.
- Let your gaze follow your moving hand throughout the movement.
Step 4: Return to Start
- Reverse the movement in a slow, controlled manner.
- Bring your top arm back to the starting position.
- Keep your knees together and hips stable the entire time.
Why It Works
This movement promotes spinal rotation, shoulder mobility, and core stability. It’s especially useful for people who sit for long periods or experience stiffness in their upper back.
Add 8–10 reps per side to your warm-up or cooldown routine to help unlock upper-body tension and improve functional movement.