Overview

The cross-body stretch is one of the simplest ways to loosen up the back of a tight shoulder. You bring one arm across your chest and gently pull it closer with your other arm. It takes only a few seconds to set up and can be done almost anywhere — at a desk, in a doorway, or on the couch.

Stretch Name

Cross-Body Shoulder Stretch

Primary Purpose

Loosen tightness in the back of the shoulder and the muscles that cross over the shoulder blade
Improve comfort when reaching across your body or sleeping on your side
Complement rotator cuff and posture exercises by easing tightness that can restrict smooth shoulder movement

Many people carry tightness in the back of the shoulder without realizing it, especially if they spend a lot of time at a desk or sleep on the same side each night. This stretch targets that area directly and is easy to fit into a daily routine.

Target Muscles

Deltoid — particularly the rear fibers, which are lengthened during this stretch
Rotator Cuff Overview — the infraspinatus and teres minor, which sit at the back of the shoulder, are gently stretched
Trapezius — the upper fibers get a light stretch as the shoulder blade is drawn forward

The back of your shoulder can tighten up from repetitive forward reaching, computer use, or simply favouring one sleeping position. This stretch directly targets that tightness by pulling your arm across your body, which lengthens the muscles behind your shoulder joint.

Difficulty Level

Beginner

Equipment Required

None

Who Should Perform This

Anyone with general tightness or stiffness in the back of the shoulder
People with shoulder impingement syndrome working on flexibility as part of a broader program
People recovering from adhesive capsulitis (frozen shoulder) once cleared for gentle stretching
Desk workers or overhead athletes who want to maintain shoulder flexibility

Who Should Avoid This

Anyone with a recent shoulder dislocation or instability where the joint hasn't yet been cleared for stretching across the body
People with an unhealed fracture around the shoulder or collarbone
Anyone less than a few weeks post-shoulder surgery without their surgeon's specific clearance for this stretch
People who feel sharp, pinching, or shooting pain rather than a mild pulling sensation — stop and check with a health professional

Step-by-Step Instructions

Stand or sit tall with your shoulders relaxed.
Bring your affected arm straight across your chest, at about shoulder height.
Use your other hand to gently hold your elbow or upper arm, pulling it closer toward your chest.
Keep your shoulder relaxed and down, away from your ear, as you hold.
Hold for 20–30 seconds, breathing normally throughout.
Release slowly and repeat 2–3 times per side, once or twice per day.

Common Mistakes

Shrugging the shoulder up during the pull — this reduces the effectiveness of the stretch. Keep your shoulder relaxed and down throughout.
Pulling too aggressively — you should feel a mild, comfortable pulling sensation, never sharp or shooting pain. Ease off if it feels too intense.
Rotating the torso instead of just moving the arm — twist only your arm across your body, not your whole trunk, to keep the stretch isolated to the shoulder.
Holding your breath — breathe steadily and let your body relax into the stretch.

Progressions

Increase the hold time gradually from 20 seconds up to 30–45 seconds
Add a small, gentle overpressure at the end of the hold by pulling slightly further, if it still feels comfortable
Combine with the posterior capsule stretch for a more targeted stretch of the back of the shoulder joint

Easier Alternatives

Reduce how far across your body you bring your arm
Perform the stretch lying down, which can help some people relax the shoulder more fully
Hold for a shorter time (10–15 seconds) and build up gradually

What You Should Feel

A mild, comfortable pulling sensation in the back of your shoulder and upper arm
No sharp pain, pinching, numbness, or tingling — if you feel any of these, ease off the stretch

Shoulder Impingement Syndrome — flexibility work supports overall shoulder mechanics
Adhesive Capsulitis (Frozen Shoulder) — gentle stretching helps restore range of motion
Rotator Cuff Tendinitis — easing tightness in the back of the shoulder can reduce compensations that strain the tendon

Deltoid — the main muscle lengthened during this stretch
Rotator Cuff Overview — includes muscles at the back of the shoulder targeted here
Trapezius — receives a light stretch during the movement

References

Physiopedia. "Rotator Cuff Strengthening Exercises." https://www.physio-pedia.com/Rotator_Cuff_Strengthening_Exercises
Cleveland Clinic. "Shoulder Impingement Syndrome." https://my.clevelandclinic.org/health/diseases/23782-shoulder-impingement-syndrome
Mayo Clinic. "Frozen shoulder — Diagnosis and treatment." https://www.mayoclinic.org/diseases-conditions/frozen-shoulder/diagnosis-treatment/drc-20372349

This information is for education only and is not a medical diagnosis. InjuryAtlas does not replace an assessment by a qualified health professional. If you have severe pain, visible deformity, numbness, loss of function, or symptoms that are getting worse, seek medical care promptly.