Overview

The doorway pec stretch uses a simple doorframe to open up the front of your chest and shoulder. It's a go-to stretch for anyone with rounded, forward-pulled shoulders from long hours at a desk, and it takes less than a minute to do.

Stretch Name

Doorway Pec Stretch

Primary Purpose

Loosen tight chest muscles (pectorals) that pull your shoulders forward and round your upper back
Counter the forward-shoulder posture that's common with desk work, driving, and phone use
Support better shoulder blade positioning, which helps your shoulder move more efficiently overhead

Tight chest muscles are one of the most common contributors to rounded-shoulder posture. When your chest muscles are chronically shortened, they can pull your shoulder blades forward and make it harder for your shoulder blade to move properly during overhead reaching.

Target Muscles

Pectoralis major and minor (chest muscles — not yet a dedicated anatomy page in this library, but the primary target of this stretch)
Deltoid — the front fibers get a light stretch alongside the chest muscles
Biceps Brachii (Long Head) — receives a mild stretch as the arm is drawn backward

Difficulty Level

Beginner

Equipment Required

A doorway or corner

Who Should Perform This

Desk workers and anyone with rounded, forward-shoulder posture
People with shoulder impingement syndrome working on overall shoulder flexibility and posture
Weightlifters or swimmers with tight chest muscles from heavy pressing work
Anyone wanting a quick, simple stretch to open up the front of the chest and shoulder

Who Should Avoid This

Anyone with a recent shoulder dislocation or ongoing shoulder instability where the joint hasn't been cleared for this stretch
People with an unhealed fracture around the shoulder, collarbone, or ribs
Anyone with a suspected biceps tendinopathy flare where reaching back sharply increases pain — modify the angle or check with a health professional
People who feel sharp pain rather than a mild stretch — stop and adjust position

Step-by-Step Instructions

Stand in an open doorway and raise your affected arm out to the side, bending your elbow to 90 degrees, like a right angle against the doorframe.
Place your forearm and palm flat against the doorframe.
Step forward through the doorway with one foot, keeping your arm in contact with the frame, until you feel a gentle stretch across the front of your chest and shoulder.
Keep your torso facing forward — avoid twisting to increase the stretch.
Hold for 20–30 seconds, breathing normally.
Return to the starting position and repeat 2–3 times per side, once or twice per day.

Common Mistakes

Stepping too far forward too quickly — this can create a sharp stretch instead of a mild, comfortable one. Step through slowly and stop as soon as you feel a gentle pull.
Twisting the torso instead of stepping straight through — twisting can shift the stretch to your ribs or spine instead of your chest and shoulder.
Raising the arm too high or too low on the doorframe — keep it at roughly shoulder height for the most effective and comfortable stretch.
Holding your breath — relax and breathe normally to help your muscles ease into the stretch.

Progressions

Hold the stretch slightly longer, up to 30–45 seconds, as flexibility improves
Try the stretch at slightly different arm heights (a little higher or lower than shoulder height) to target different chest muscle fibers
Combine with the scapular retraction row exercise to both stretch the chest and strengthen the muscles that pull the shoulder blades back

Easier Alternatives

Reduce how far you step forward through the doorway
Perform the stretch with your arm lower, closer to waist height, which is often more comfortable for stiff shoulders
Hold for a shorter time (10–15 seconds) and build up gradually

What You Should Feel

A mild, comfortable stretching sensation across the front of your chest and the front of your shoulder
No sharp pain, pinching, numbness, or tingling down the arm — ease off if you notice any of these

Shoulder Impingement Syndrome — better chest flexibility supports improved shoulder blade positioning
Biceps Tendinopathy — a gentle version of this stretch can be used carefully as flexibility work, adjusted to avoid provoking symptoms

Deltoid — receives a light stretch alongside the chest muscles
Biceps Brachii (Long Head) — mildly stretched during the movement
Glenohumeral Joint — benefits indirectly from improved surrounding muscle flexibility

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
OrthoInfo — American Academy of Orthopaedic Surgeons. "Rotator Cuff and Shoulder Conditioning Program." https://orthoinfo.aaos.org/en/recovery/rotator-cuff-and-shoulder-conditioning-program/

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.