ART-869: Tennis Shoulder Care and Prehabilitation
Executive Summary
The shoulder is the most commonly injured joint in tennis, with the repetitive overhead serving and groundstroke motions placing extreme demands on the rotator cuff, labrum, and glenohumeral joint. Shoulder injuries account for 20-30% of all tennis injuries, with rotator cuff tendinopathy being the most prevalent. Effective shoulder care involves a comprehensive prehabilitation program that addresses rotator cuff strength, scapular stability, shoulder flexibility (particularly GIRD), and thoracic mobility. A well-structured shoulder care program prevents injuries and extends the careers of tennis players at all levels.
Shoulder Biomechanics in Tennis
The Throwing Motion Analogy
The tennis serve is biomechanically similar to the throwing motion, with the shoulder undergoing: - 160-180 degrees of external rotation in the cocking phase - 2,000-4,000 degrees per second of internal rotation in the acceleration phase - Extreme deceleration forces after contact (absorbed by the rotator cuff)
Common Shoulder Injuries in Tennis
| Injury | Cause | Symptoms |
|---|---|---|
| Rotator Cuff Tendinopathy | Repetitive overhead loading | Pain during cocking and acceleration phases |
| Shoulder Impingement | Compression of rotator cuff tendons | Pain during overhead motions, especially serving |
| Labral Tears | Repetitive overhead loading, shoulder instability | Catching sensation, pain with overhead motions |
| GIRD | Adaptive changes from repetitive serving | Loss of internal rotation, increased injury risk |
| Scapular Dyskinesis | Poor scapular control and muscle imbalance | Altered shoulder mechanics, reduced power |
GIRD Management
What is GIRD?
GIRD (Glenohumeral Internal Rotation Deficit) is the loss of internal rotation range in the dominant shoulder compared to the non-dominant shoulder: - Normal: <10 degrees difference - At Risk: 10-18 degrees difference - High Risk: >18 degrees difference
GIRD Assessment
- Measure internal rotation in both shoulders (supine, 90 degrees abduction)
- Calculate the difference: Dominant IR minus Non-dominant IR
- GIRD = Dominant IR is LESS than Non-dominant IR (negative difference)
GIRD Management Program
Sleeper Stretch: - Lie on the dominant side, elbow at 90 degrees - Use the opposite hand to push the forearm toward the floor - Stretches the posterior capsule - Hold 30 seconds, 3 reps each side
Cross-Body Stretch: - Pull the dominant arm across the body at shoulder height - Hold 30 seconds, 3 reps each side
Posterior Capsule Stretch (Doorway): - Place the forearm against a doorframe - Lean forward, stretching the posterior shoulder - Hold 30 seconds, 3 reps each side
Rotator Cuff Strengthening
External Rotator Strengthening
Side-Lying External Rotation: - Lie on the non-dominant side - Dominant elbow at 90 degrees, resting on the ribcage - Rotate the forearm upward (external rotation) - Use a light dumbbell (1-3 kg) - 3 sets of 15 reps
Standing External Rotation (Band): - Stand with elbow at 90 degrees, tucked to the side - Pull the band into external rotation - 3 sets of 15 reps
Prone External Rotation: - Lie face down, arm hanging off the bed/table - Rotate the forearm upward into external rotation - 3 sets of 15 reps
Internal Rotator Strengthening
Side-Lying Internal Rotation: - Lie on the dominant side - Rotate the forearm upward (internal rotation) - 3 sets of 15 reps
Standing Internal Rotation (Band): - Stand with elbow at 90 degrees - Pull the band into internal rotation - 3 sets of 15 reps
Scapular Stability
Scapular Muscle Functions
| Muscle | Function | Exercise |
|---|---|---|
| Upper Trapezius | Scapular elevation | Shrug |
| Middle Trapezius | Scapular retraction | Row |
| Lower Trapezius | Scapular depression and upward rotation | Y-raise |
| Rhomboids | Scapular retraction | Row |
| Serratus Anterior | Scapular protraction | Push-up plus |
Scapular Stability Exercises
Prone I-T-Y Raises: - Lie face down, arms extended - Raise arms in I (straight ahead), T (to the side), and Y (diagonally) positions - 2 sets of 10 reps each position
Wall Slides: - Stand with back against a wall, arms in a goalpost position - Slide arms up and down, maintaining contact with the wall - 2 sets of 10 reps
Band Pull-Aparts: - Hold a resistance band in front of you - Pull the band apart, squeezing the shoulder blades - 2 sets of 15 reps
Push-Up Plus: - Perform a push-up, then push further to protract the shoulder blades - 2 sets of 15 reps
Thoracic Mobility
Why Thoracic Mobility Matters
Poor thoracic mobility forces the shoulder and lower back to compensate, increasing injury risk. Adequate thoracic rotation and extension allow proper serving mechanics and reduce shoulder stress.
Thoracic Mobility Exercises
Foam Roller Thoracic Extension: - Lie on a foam roller across the upper back - Extend the spine over the roller - 10 reps at different levels
Thoracic Rotation (Quadruped): - On hands and knees, place one hand behind the head - Rotate the elbow toward the ceiling - 10 reps each side
Cat-Cow: - On hands and knees, alternate between arching and rounding the back - 10 reps
Shoulder Care Program
Daily Shoulder Care (10-15 minutes)
Warm-Up (5 minutes): - Arm circles: 30 seconds each direction - Band pull-aparts: 2 x 15 - Wall slides: 2 x 10
Flexibility (5 minutes): - Sleeper stretch: 3 x 30 seconds each side - Cross-body stretch: 3 x 30 seconds each side - Posterior capsule stretch: 3 x 30 seconds each side
Strength (5 minutes): - Side-lying external rotation: 2 x 15 - Side-lying internal rotation: 2 x 15 - Band pull-aparts: 2 x 15
Dedicated Shoulder Session (30 minutes, 2-3x/week)
Warm-Up: 5 minutes (arm circles, band pull-aparts) Flexibility: 10 minutes (sleeper stretch, cross-body stretch, thoracic mobility) Strength: 15 minutes (external rotation, internal rotation, scapular exercises)
Practical Application: "The Shoulder Health Checklist"
Weekly Shoulder Health Monitoring:
- [ ] Sleeper stretch performed daily (30 seconds each side)
- [ ] Cross-body stretch performed daily (30 seconds each side)
- [ ] External rotation strengthening performed 3x/week
- [ ] Scapular stability exercises performed 3x/week
- [ ] Thoracic mobility exercises performed daily
- [ ] Shoulder pain assessed (0-10 scale)
- [ ] Internal rotation range measured monthly
Warning Signs Requiring Medical Attention: - Pain during serving that persists after rest - Catching or clicking sensation in the shoulder - Loss of serve speed without explanation - Pain that disrupts sleep - Visible swelling or deformity
Diagnostic & Training Matrix
| Observation | Failure | Result | Corrective Strategy |
|---|---|---|---|
| Shoulder pain during serving | Weak rotator cuff, poor scapular control | Rotator cuff tendinopathy | Rotator cuff strengthening; scapular stability exercises |
| GIRD exceeding 18 degrees | Posterior capsule tightness | Increased injury risk, reduced serve speed | Sleeper stretch; posterior capsule stretching; thoracic mobility |
| Scapular dyskinesis | Poor scapular muscle balance | Altered shoulder mechanics, reduced power | Scapular stability exercises (I-T-Y raises, wall slides, rows) |
| Loss of internal rotation | Adaptive changes from repetitive serving | Shoulder pain, reduced range of motion | GIRD management program; sleeper stretch; stretching routine |
| Thoracic stiffness | Poor posture, insufficient mobility | Compensatory shoulder and lower back stress | Thoracic mobility exercises; foam roller extension; rotation drills |