Seated Shoulder Flexor Depresor Retractor Stretch Bent Knee
- Target muscle
- Brachialis, Brachioradialis, Deltoid Anterior, Pectoralis Major Clavicular Head, Pectoralis Major Sternal Head
- Equipment
- Body weight
- Body part
- Chest, Shoulders, Upper Arms
- Type
- Stretching
The seated shoulder flexor depressor retractor stretch (bent knee) is a bodyweight flexibility exercise that targets the anterior deltoid, pectoralis major clavicular and sternal heads, brachialis, and brachioradialis. Performed seated with knees bent, it opens the front of the shoulders, chest, and upper arms by depressing and retracting the shoulder blades while the hands rest behind the body. It is well suited for improving shoulder mobility and counteracting the effects of prolonged forward posture.
How to do the Seated Shoulder Flexor Depresor Retractor Stretch Bent Knee
- 1Sit on the floor with your knees bent and feet flat, hip-width apart.
- 2Place both hands flat on the floor behind your hips, fingers pointing away from your body or slightly to the sides.
- 3Straighten your arms and shift a small amount of weight into your palms to create a stable base.
- 4Draw your shoulder blades down away from your ears (depression) and squeeze them together toward your spine (retraction).
- 5Gently press your chest forward and upward without arching your lower back excessively.
- 6Keep your chin level and your gaze forward or slightly upward — do not let your head drop back.
- 7Hold the stretched position for 20–40 seconds, breathing steadily throughout.
- 8To release, relax the shoulder blade squeeze, shift your weight forward, and return to a neutral seated posture.
Form tips
- Initiate the stretch by moving your shoulder blades first — depress and retract before you lean into the position.
- Breathe in through the nose and out through the mouth; use each exhale to deepen the stretch slightly.
- Keep your elbows soft rather than locked to avoid unnecessary strain on the elbow joint.
- If the floor feels too far away, sit on a low bench or step and place your hands on the surface behind you.
- Maintain a tall spine throughout — avoid collapsing through the lower back as you open the chest.
Common mistakes
- Shrugging the shoulders toward the ears: this shortens the stretch on the anterior deltoid and reduces the benefit of the depressor component — actively pull the shoulders down.
- Letting the elbows fully lock out: hyperextending the elbows places unnecessary stress on the joint; keep a slight bend throughout the hold.
- Pointing the fingers straight back: this can compress the wrist and limit how far you can shift your weight; rotate the fingers outward to a more comfortable angle.
- Holding the breath: breath-holding increases muscle tension and prevents the stretch from deepening; breathe steadily and use exhalations to relax into the position.
- Allowing the head to drop back sharply: excessive neck extension can strain the cervical spine; keep the chin level or only slightly lifted.
Frequently asked questions
What muscles does this stretch target?
The primary muscles stretched are the anterior deltoid, pectoralis major clavicular head, pectoralis major sternal head, brachialis, and brachioradialis — all structures along the front of the shoulder, chest, and upper arm.
How long should I hold this stretch?
Hold for 20–40 seconds per set. Two to three sets is typically sufficient to notice an improvement in range of motion. Longer holds of up to 60 seconds can be used if you are working on significant flexibility deficits.
Can I do this stretch if I have wrist pain?
If flat-hand pressure on the floor causes wrist discomfort, try making fists instead of laying the palms flat, or use a low bench so the wrists are in a more neutral position. If pain persists, consult a medical professional before continuing.
When is the best time to do this stretch?
This stretch is most effective after a workout when muscles are warm, or as part of a dedicated mobility session. Performing it after prolonged sitting or desk work can also help relieve tightness in the chest and front shoulders.
How does bending the knees change the stretch compared to straight legs?
Bent knees reduce tension along the posterior chain (hamstrings and lower back), allowing you to focus attention entirely on the shoulder and chest stretch without compensating through the hips or spine.
