How long should a partner hold the cross-body shoulder stretch?

Two or three passes of 20 to 30 seconds per arm is the whole session. Agree on a stop word before the first pass so the trainee never has to explain themselves mid-stretch, and finish when a pass stops adding range. The shoulder responds quickly here, so a long session is not the goal.

What can I do instead of the partner-assisted cross-body shoulder stretch on my own?

The solo cross-body shoulder stretch covers most of the same ground with your opposite hand doing the pulling. If you want depth without a partner, lie on your back and draw the arm across: the floor holds the shoulder blade down, which is the main thing a partner's second hand is there to do.

Why use a partner for this shoulder stretch instead of doing it alone?

A partner can hold the shoulder blade down and the elbow straight while the trainee fully relaxes, a combination most people cannot manage on themselves, which makes it useful in coached and team settings after training. It is a poor choice with a partner who is not communicating or who is working to a number instead of to feedback, and for a shoulder with a recent injury the solo version keeps control where it belongs.

Beginner

Partner-Assisted Cross-Body Shoulder Stretch

Reaching one arm across the chest is the simplest way to stretch the rear deltoid and the muscles behind the shoulder blade, and a partner can hold a cleaner line than the trainee's own opposite arm. Keeping the shoulder down and the elbow straight keeps the tension on the back of the shoulder rather than the elbow. It is a handy reset between pressing and pulling sets.

Equipment: Body Weight
Body part: Shoulder
Type: Stretching
Browse by muscle: Deltoid Posterior

How to do it

1
Have the trainee sit or stand tall and reach one arm straight across the front of the body at shoulder height.
2
Stand behind the trainee and place one hand on the back of their upper arm and one stabilizing the same-side shoulder.
3
Ask the trainee to relax the arm and exhale.
4
Gently draw the straight arm further across the chest until a stretch is felt in the back of the shoulder.
5
Hold for 20 to 30 seconds keeping the shoulder pressed down, then release slowly and switch arms.
6
Communicate throughout and keep the pull across the body, never levering on the elbow joint.

Tips

Cue the working shoulder to stay down away from the ear so the rear delt takes the stretch.
Guide above the elbow, not on the joint, to keep the pressure safe.
Keep the elbow straight to bias the rear deltoid; a bent elbow shifts the feel.
Apply slow, steady pressure and stop for any pinch inside the shoulder.

Variations

Common mistakes

The stabilizing hand slides onto the shoulder blade and pushes it forward, letting the blade travel with the arm so the rear delt is never actually lengthened.
The trainee keeps helping by pulling the arm across themselves, so the muscle stays switched on and the partner cannot feel where real end range sits.
The trainee's torso is allowed to turn toward the pulled arm, which buys extra range out of the spine rather than the shoulder.
The partner pulls straight backward instead of across the chest, which loads the front of the shoulder joint rather than opening the back of it.
The release is as quick as the entry, and letting a stretched shoulder snap back is where most partner-stretch complaints begin; bring the arm home slowly.

Frequently asked

How long should a partner hold the cross-body shoulder stretch?: Two or three passes of 20 to 30 seconds per arm is the whole session. Agree on a stop word before the first pass so the trainee never has to explain themselves mid-stretch, and finish when a pass stops adding range. The shoulder responds quickly here, so a long session is not the goal.
What can I do instead of the partner-assisted cross-body shoulder stretch on my own?: The solo cross-body shoulder stretch covers most of the same ground with your opposite hand doing the pulling. If you want depth without a partner, lie on your back and draw the arm across: the floor holds the shoulder blade down, which is the main thing a partner's second hand is there to do.
Why use a partner for this shoulder stretch instead of doing it alone?: A partner can hold the shoulder blade down and the elbow straight while the trainee fully relaxes, a combination most people cannot manage on themselves, which makes it useful in coached and team settings after training. It is a poor choice with a partner who is not communicating or who is working to a number instead of to feedback, and for a shoulder with a recent injury the solo version keeps control where it belongs.

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