Shoulder Instability — Complete Exercise Program

Looking for a shorter starting point? The Shoulder Instability starter guide covers the first 8 exercises on a printable sheet.

A phase-by-phase exercise program used in recovery for shoulder instability. Each movement includes what it's working on and how it's typically performed. Your own surgeon's or therapist's guidance always comes first.

Foundation

Weeks 0–4

Shoulder Isometrics

Gentle no-movement holds that switch on the shoulder muscles without straining the joint.

What it helps: Activates and strengthens the shoulder muscles with gentle static holds — a comfortable way to build strength early, before the joint is ready for moving resistance.

1. Stand beside a door frame or wall with that arm at your side.
2. Bend your elbow and press the back of your hand gently into the frame. Hold steadily — nothing moves.
3. Then let the arm hang straight down and press the outside of your arm into the frame the same way.
4. Use light, comfortable pressure, hold, then relax.

Tips:

• No movement happens — you're gently pressing against something solid.
• Start at about a quarter effort; never push into pain.
• Pressing the front of your fist into the frame works the front of the shoulder in the same way.

Commonly done as 2 sets of Hold 5–10 sec ×5, most days.

Shoulder Blade Squeezes

Strengthens the muscles between the shoulder blades to support upright posture.

What it helps: Strengthens the muscles between the shoulder blades that hold you upright and support good posture.

1. Sit or stand tall with arms relaxed.
2. Gently squeeze your shoulder blades together and slightly down.
3. Hold briefly, then release.

Tips:

• Do not shrug your shoulders up toward your ears.
• Your arms stay still — the movement happens between the shoulder blades.
• Keep it gentle and controlled.

Commonly done as hold 3–5s sets of 10–15, a few times a day.

Scapular Y-T-W

Strengthens the muscles between and around the shoulder blades.

What it helps: Builds the mid-back and shoulder-blade muscles that anchor and position the shoulder — the foundation that lets it move and lift without pinching.

1. Lie face-down with your arms hanging and your thumbs pointing up.
2. Y: raise both arms overhead into a wide Y, squeezing the shoulder blades together. Lower.
3. T: raise both arms straight out to the sides into a T. Lower.
4. W: bend your elbows and pull them down and back into a W, squeezing the blades. Lower.

Tips:

• Lead with squeezing the shoulder blades, not shrugging.
• Light or no weight; quality over quantity.
• Thumbs stay pointing up throughout.
• If lying face-down is not comfortable, the same three shapes work bent forward at a table.

Commonly done as 2 sets of 8–10 each, a few times a week.

Posture Training

Trains a neutral spine for sitting, standing, and lifting safely.

What it helps: Trains a neutral, balanced spine for sitting, standing, and lifting — good posture takes strain off the back all day long.

1. Sit or stand tall, stacking ears over shoulders over hips.
2. Gently draw your shoulder blades down and back.
3. Hold a tall, relaxed neutral position; reset whenever you slouch.

Tips:

• Set reminders to check your posture during the day.
• A small lumbar roll helps when sitting.

Commonly done throughout the day.

Shoulder Flexion

Gently restores forward shoulder motion.

What it helps: Gently restores forward shoulder motion so you can reach overhead and use the arm in daily life.

1. Stand or sit tall.
2. Slowly raise one or both arms forward and up to a comfortable height.
3. Lower with control.

Tips:

• Keep your shoulders relaxed, not shrugged.
• Move within a pain-free range.

Commonly done as 2 sets of 10, daily.

Walking Program

Short, frequent walks build endurance and confidence.

What it helps: Comfortable, frequent walking keeps the joints loose, builds your stamina, and rebuilds confidence on your feet. Little and often beats long and tiring.

1. Take short walks at a comfortable pace.
2. Increase your distance gradually as you feel able.

Tips:

• Use your assistive device as directed.

Commonly done throughout the day.

Build

Weeks 4–8

Resistance Band External Rotation

Strengthens the rotator cuff muscles that turn the arm outward and steady the shoulder.

What it helps: Builds the rotator cuff muscles that turn the arm out and hold the ball centered in the socket — the deep stabilizers that keep the shoulder moving smoothly.

1. Anchor a band at waist height and stand side-on to it, holding the band in the hand furthest from the anchor.
2. Bend that elbow to a right angle and tuck it firmly against your side. It stays there for the whole exercise.
3. Keeping the elbow pinned, rotate your forearm outward, away from your body.
4. Return slowly, still keeping the elbow against your side.

Tips:

• The elbow never leaves your side. If it drifts out, you are working the wrong muscles — a small rolled towel held between elbow and ribs makes it obvious.
• Only the forearm moves. Your shoulder, torso and feet stay still.
• Light resistance, slow and controlled. This is a small movement done well, not a big one done fast.

Commonly done as 2–3 sets of 10–15, most days.

Resistance Band Internal Rotation

Strengthens the rotator cuff muscles that turn the arm inward.

What it helps: Strengthens the inward-rotating part of the rotator cuff, balancing the muscles that center and stabilize the shoulder.

1. Anchor a band at waist height. Stand side-on with the working arm nearest the anchor, elbow bent 90° and tucked to your side.
2. Keeping the elbow at your side, rotate your forearm inward, across toward your stomach.
3. Slowly return with control.

Tips:

• Elbow stays pinned to your side throughout.
• Controlled, light resistance.

Commonly done as 2–3 sets of 10–15, most days.

Scapular Y-T-W

Strengthens the muscles between and around the shoulder blades.

What it helps: Builds the mid-back and shoulder-blade muscles that anchor and position the shoulder — the foundation that lets it move and lift without pinching.

1. Lie face-down with your arms hanging and your thumbs pointing up.
2. Y: raise both arms overhead into a wide Y, squeezing the shoulder blades together. Lower.
3. T: raise both arms straight out to the sides into a T. Lower.
4. W: bend your elbows and pull them down and back into a W, squeezing the blades. Lower.

Tips:

• Lead with squeezing the shoulder blades, not shrugging.
• Light or no weight; quality over quantity.
• Thumbs stay pointing up throughout.
• If lying face-down is not comfortable, the same three shapes work bent forward at a table.

Commonly done as 2 sets of 8–10 each, a few times a week.

Rhythmic Stabilization

Quick, gentle holds against light pushes that train the shoulder to stay stable and controlled.

What it helps: Trains the shoulder's stabilizing muscles to react and hold the joint steady — building the dynamic control that keeps the shoulder secure during everyday movement.

1. Hold the arm in a comfortable position (e.g., in front, elbow slightly bent). Have a partner or your other hand apply light, quick pushes from different directions.
2. Resist just enough to keep the arm steady — small holds, not big movements.
3. Progress to a hand on a wall or ball, gently shifting weight through the arm.

Tips:

• The arm barely moves — you're reacting to keep it still.
• Light and controlled; this is about control, not strength.

Commonly done as 2–3 sets of 30–60 sec, most days.

Resistance Band Rows

Strengthens the upper back to support posture and the cervical spine.

What it helps: Strengthens the upper back that supports good posture and takes strain off the neck.

1. Anchor a resistance band at chest height and hold an end in each hand.
2. Stand facing the anchor, far enough back that the band is taut, feet hip-width apart.
3. Pull your elbows back past your ribs, squeezing your shoulder blades together.
4. Return slowly with control.

Tips:

• Keep your neck relaxed and posture tall.
• Lead with the shoulder blades, not the neck.
• Your feet stay planted — don't lean back to pull.

Commonly done as 2 sets of 10–15, 3–4 times a week.

Walking Program

Short, frequent walks build endurance and confidence.

What it helps: Comfortable, frequent walking keeps the joints loose, builds your stamina, and rebuilds confidence on your feet. Little and often beats long and tiring.

1. Take short walks at a comfortable pace.
2. Increase your distance gradually as you feel able.

Tips:

• Use your assistive device as directed.

Commonly done throughout the day.

Strengthen

Weeks 8–12

Rhythmic Stabilization

Quick, gentle holds against light pushes that train the shoulder to stay stable and controlled.

What it helps: Trains the shoulder's stabilizing muscles to react and hold the joint steady — building the dynamic control that keeps the shoulder secure during everyday movement.

1. Hold the arm in a comfortable position (e.g., in front, elbow slightly bent). Have a partner or your other hand apply light, quick pushes from different directions.
2. Resist just enough to keep the arm steady — small holds, not big movements.
3. Progress to a hand on a wall or ball, gently shifting weight through the arm.

Tips:

• The arm barely moves — you're reacting to keep it still.
• Light and controlled; this is about control, not strength.

Commonly done as 2–3 sets of 30–60 sec, most days.

Resistance Band External Rotation

Strengthens the rotator cuff muscles that turn the arm outward and steady the shoulder.

What it helps: Builds the rotator cuff muscles that turn the arm out and hold the ball centered in the socket — the deep stabilizers that keep the shoulder moving smoothly.

1. Anchor a band at waist height and stand side-on to it, holding the band in the hand furthest from the anchor.
2. Bend that elbow to a right angle and tuck it firmly against your side. It stays there for the whole exercise.
3. Keeping the elbow pinned, rotate your forearm outward, away from your body.
4. Return slowly, still keeping the elbow against your side.

Tips:

• The elbow never leaves your side. If it drifts out, you are working the wrong muscles — a small rolled towel held between elbow and ribs makes it obvious.
• Only the forearm moves. Your shoulder, torso and feet stay still.
• Light resistance, slow and controlled. This is a small movement done well, not a big one done fast.

Commonly done as 2–3 sets of 10–15, most days.

Scaption Raises

Light raises in the shoulder's natural plane that build the cuff and deltoid safely.

What it helps: Strengthens the rotator cuff and shoulder muscles through a raise in the joint's most comfortable plane — building overhead strength while keeping the shoulder clear of pinching.

1. Stand with your arms at your sides, thumbs pointing forward.
2. Raise both arms out and slightly forward — about 30 degrees in front of straight out to the side, like a shallow Y.
3. Keep your thumbs pointing up as you lift.
4. Lift to about shoulder height, or to just before any pinch, then lower slowly.

Tips:

• Thumbs up, slight forward angle — the shoulder's safest, roomiest position.
• Start with no weight; add a light weight only when it stays comfortable.
• How high you go is guided by comfort. Stop below any pinch.

Commonly done as 2 sets of 8–12, most days.

Resistance Band Rows

Strengthens the upper back to support posture and the cervical spine.

What it helps: Strengthens the upper back that supports good posture and takes strain off the neck.

1. Anchor a resistance band at chest height and hold an end in each hand.
2. Stand facing the anchor, far enough back that the band is taut, feet hip-width apart.
3. Pull your elbows back past your ribs, squeezing your shoulder blades together.
4. Return slowly with control.

Tips:

• Keep your neck relaxed and posture tall.
• Lead with the shoulder blades, not the neck.
• Your feet stay planted — don't lean back to pull.

Commonly done as 2 sets of 10–15, 3–4 times a week.

Scapular Y-T-W

Strengthens the muscles between and around the shoulder blades.

What it helps: Builds the mid-back and shoulder-blade muscles that anchor and position the shoulder — the foundation that lets it move and lift without pinching.

1. Lie face-down with your arms hanging and your thumbs pointing up.
2. Y: raise both arms overhead into a wide Y, squeezing the shoulder blades together. Lower.
3. T: raise both arms straight out to the sides into a T. Lower.
4. W: bend your elbows and pull them down and back into a W, squeezing the blades. Lower.

Tips:

• Lead with squeezing the shoulder blades, not shrugging.
• Light or no weight; quality over quantity.
• Thumbs stay pointing up throughout.
• If lying face-down is not comfortable, the same three shapes work bent forward at a table.

Commonly done as 2 sets of 8–10 each, a few times a week.

Advance

Months 3–6

Rhythmic Stabilization

Quick, gentle holds against light pushes that train the shoulder to stay stable and controlled.

What it helps: Trains the shoulder's stabilizing muscles to react and hold the joint steady — building the dynamic control that keeps the shoulder secure during everyday movement.

1. Hold the arm in a comfortable position (e.g., in front, elbow slightly bent). Have a partner or your other hand apply light, quick pushes from different directions.
2. Resist just enough to keep the arm steady — small holds, not big movements.
3. Progress to a hand on a wall or ball, gently shifting weight through the arm.

Tips:

• The arm barely moves — you're reacting to keep it still.
• Light and controlled; this is about control, not strength.

Commonly done as 2–3 sets of 30–60 sec, most days.

Scaption Raises

Light raises in the shoulder's natural plane that build the cuff and deltoid safely.

What it helps: Strengthens the rotator cuff and shoulder muscles through a raise in the joint's most comfortable plane — building overhead strength while keeping the shoulder clear of pinching.

1. Stand with your arms at your sides, thumbs pointing forward.
2. Raise both arms out and slightly forward — about 30 degrees in front of straight out to the side, like a shallow Y.
3. Keep your thumbs pointing up as you lift.
4. Lift to about shoulder height, or to just before any pinch, then lower slowly.

Tips:

• Thumbs up, slight forward angle — the shoulder's safest, roomiest position.
• Start with no weight; add a light weight only when it stays comfortable.
• How high you go is guided by comfort. Stop below any pinch.

Commonly done as 2 sets of 8–12, most days.

Resistance Band External Rotation

Strengthens the rotator cuff muscles that turn the arm outward and steady the shoulder.

What it helps: Builds the rotator cuff muscles that turn the arm out and hold the ball centered in the socket — the deep stabilizers that keep the shoulder moving smoothly.

1. Anchor a band at waist height and stand side-on to it, holding the band in the hand furthest from the anchor.
2. Bend that elbow to a right angle and tuck it firmly against your side. It stays there for the whole exercise.
3. Keeping the elbow pinned, rotate your forearm outward, away from your body.
4. Return slowly, still keeping the elbow against your side.

Tips:

• The elbow never leaves your side. If it drifts out, you are working the wrong muscles — a small rolled towel held between elbow and ribs makes it obvious.
• Only the forearm moves. Your shoulder, torso and feet stay still.
• Light resistance, slow and controlled. This is a small movement done well, not a big one done fast.

Commonly done as 2–3 sets of 10–15, most days.

Resistance Band Rows

Strengthens the upper back to support posture and the cervical spine.

What it helps: Strengthens the upper back that supports good posture and takes strain off the neck.

1. Anchor a resistance band at chest height and hold an end in each hand.
2. Stand facing the anchor, far enough back that the band is taut, feet hip-width apart.
3. Pull your elbows back past your ribs, squeezing your shoulder blades together.
4. Return slowly with control.

Tips:

• Keep your neck relaxed and posture tall.
• Lead with the shoulder blades, not the neck.
• Your feet stay planted — don't lean back to pull.

Commonly done as 2 sets of 10–15, 3–4 times a week.

Shoulder Strengthening

Builds shoulder and upper-body strength to offload the neck.

What it helps: Builds the shoulder and upper-body strength that supports the neck and powers reaching, lifting, and carrying.

1. Using light weights or a band, perform shoulder raises, presses, and external rotations.
2. Move slowly with good posture.
3. Progress load gradually.

Tips:

• Keep your neck relaxed throughout.
• Stop if it strains the neck.

Commonly done as 2 sets of 10–12, 2–3 times a week.

Low-Impact Recreational Activities

Enjoyable activities that protect your joint.

What it helps: Getting back to the activities you enjoy in ways that are kind to your joints — the whole point of building this strength.

1. Choose activities that keep you moving without jarring the joint - walking, cycling and golf are three common ones.
2. Start with a short session and add time before you add intensity.
3. Spread them across the week rather than doing everything in one day.
4. Keep the effort at a level where you could still hold a conversation.

Tips:

• The picture shows three examples, not a list to work through - the best activity is the one you will keep doing.
• A little stiffness the next day is usual; a flare that lingers means the session was too long, not that the activity was wrong.
• Your surgeon or therapist can say when each activity is a reasonable one to add.

Commonly done as you like.

Maintain

Months 6–12

Shoulder Strengthening

Builds shoulder and upper-body strength to offload the neck.

What it helps: Builds the shoulder and upper-body strength that supports the neck and powers reaching, lifting, and carrying.

1. Using light weights or a band, perform shoulder raises, presses, and external rotations.
2. Move slowly with good posture.
3. Progress load gradually.

Tips:

• Keep your neck relaxed throughout.
• Stop if it strains the neck.

Commonly done as 2 sets of 10–12, 2–3 times a week.

Rhythmic Stabilization

Quick, gentle holds against light pushes that train the shoulder to stay stable and controlled.

What it helps: Trains the shoulder's stabilizing muscles to react and hold the joint steady — building the dynamic control that keeps the shoulder secure during everyday movement.

1. Hold the arm in a comfortable position (e.g., in front, elbow slightly bent). Have a partner or your other hand apply light, quick pushes from different directions.
2. Resist just enough to keep the arm steady — small holds, not big movements.
3. Progress to a hand on a wall or ball, gently shifting weight through the arm.

Tips:

• The arm barely moves — you're reacting to keep it still.
• Light and controlled; this is about control, not strength.

Commonly done as 2–3 sets of 30–60 sec, most days.

Resistance Band Rows

Strengthens the upper back to support posture and the cervical spine.

What it helps: Strengthens the upper back that supports good posture and takes strain off the neck.

1. Anchor a resistance band at chest height and hold an end in each hand.
2. Stand facing the anchor, far enough back that the band is taut, feet hip-width apart.
3. Pull your elbows back past your ribs, squeezing your shoulder blades together.
4. Return slowly with control.

Tips:

• Keep your neck relaxed and posture tall.
• Lead with the shoulder blades, not the neck.
• Your feet stay planted — don't lean back to pull.

Commonly done as 2 sets of 10–15, 3–4 times a week.

Walking Program

Short, frequent walks build endurance and confidence.

What it helps: Comfortable, frequent walking keeps the joints loose, builds your stamina, and rebuilds confidence on your feet. Little and often beats long and tiring.

1. Take short walks at a comfortable pace.
2. Increase your distance gradually as you feel able.

Tips:

• Use your assistive device as directed.

Commonly done throughout the day.

Low-Impact Recreational Activities

Enjoyable activities that protect your joint.

What it helps: Getting back to the activities you enjoy in ways that are kind to your joints — the whole point of building this strength.

1. Choose activities that keep you moving without jarring the joint - walking, cycling and golf are three common ones.
2. Start with a short session and add time before you add intensity.
3. Spread them across the week rather than doing everything in one day.
4. Keep the effort at a level where you could still hold a conversation.

Tips:

• The picture shows three examples, not a list to work through - the best activity is the one you will keep doing.
• A little stiffness the next day is usual; a flare that lingers means the session was too long, not that the activity was wrong.
• Your surgeon or therapist can say when each activity is a reasonable one to add.

Commonly done as you like.

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These are general exercise guides, not a personal prescription. The repetitions and frequency shown are what's commonly used — your own surgeon or therapist may advise something different, and their guidance comes first.