MobilityBW
Simple standing stretch pulling one arm horizontally across the body to lengthen the posterior deltoid and rotator cuff — a quick daily shoulder-health drill.
Demo: Bob and Brad
Sets
1
Reps
20-30 sec hold per side
Rest
10s
Contraindications
None significant — very low-risk stretch.Setup
Stand tall, bring one arm straight across the chest at shoulder height.
Execution
- 1Use the opposite forearm or hand to gently pull the arm further across the body
- 2Keep the shoulder of the stretched arm down, don't let it hike up
- 3Hold and breathe, feeling the stretch in the back of the shoulder
- 4Release slowly and switch sides
Key cues
- Keep the shoulder pulled down, away from the ear
- Pull from the elbow, not by yanking the wrist
- Keep the torso facing forward, don't rotate to fake more range
- Breathe slow through the hold
Common faults
- Shrugging the shoulder up during the pull
- Rotating the torso instead of isolating the shoulder
- Pulling too aggressively causing discomfort
- Holding for too short a time to create real change
Tweaks
- Add a slight forward lean of the torso for more stretch
- Combine with a triceps stretch (bend the elbow after crossing) for efficiency
- Perform seated for added stability
Progressions
Muscles
Primary: Posterior Deltoid, Rotator Cuff
Secondary: Trapezius
Notes
Easy to do anywhere — great filler stretch between sets.
Sources
Attribution: Classic physical therapy staple