Shoulder Impingement Syndrome in Overhead Athletes: Symptoms, Recovery, and Non-Surgical Care

 Medically Reviewed by Dr. Pradeep Kocheeppan, Knee & Shoulder Surgeon, Move & Shine Orthopedic Wellness & Eye Hospital, Bangalore Last Updated: October 2026

Shoulder impingement syndrome in overhead athletes is one of the most common reasons a tennis player, cricketer, badminton player, swimmer or volleyball player has to stop mid-season with a shoulder that hurts every time the arm goes overhead. The encouraging news is that most athletes recover with a structured, non-surgical programme, and large clinical trials show that surgery to “create more room” in the shoulder is rarely the answer. This guide explains the symptoms, what is really happening inside the shoulder, a realistic recovery timeline, and how to find the right physiotherapy and orthopedic care near you in Bangalore.
We also explain when surgery is considered, the modern techniques used, and how physiotherapy and a planned return to activity support recovery.

Quick answer: Shoulder impingement syndrome in overhead athletes is pain caused by irritated rotator cuff tendons or bursa (or, in throwers and tennis players, structures at the back of the shoulder) during repeated overhead movement. It is usually treated without surgery, using load management, mobility work, rotator cuff and shoulder-blade strengthening, and a graded return to sport over roughly 6 to 12 weeks, longer for severe or long-standing cases.

Surgery is reserved for confirmed structural problems or failed rehabilitation, and is followed by a phased rehab programme and a criteria-based return to sport.

Key Takeaways

• Pain on lifting the arm overhead, at night, or during the serve, smash or throw is the classic pattern.
• The cause is rarely “a bone pinching a tendon” alone. Stiffness at the back of the shoulder, weak shoulder-blade control, rotator cuff fatigue and poor leg-and-core force transfer all contribute.
• Complete rest is not the fix. A graded, sport-specific rehab programme is.
• High-quality trials found decompression surgery no better than placebo surgery or exercise for most subacromial pain.
• See a specialist if pain lasts beyond 2 to 3 weeks, or sooner if you notice sudden weakness, night pain or loss of serve speed.
• Surgery is a considered option, not a first step. It is mainly for confirmed rotator cuff tears, labral injuries, instability or athletes who have not improved after 3 to 6 months of good rehab, and the physiotherapy before and after the operation decides much of the final result.

What Is Shoulder Impingement Syndrome in Overhead Athletes?

Your rotator cuff is a group of four small muscles that centre the ball of the shoulder in its socket every time you lift or rotate your arm. Above it sits a bony roof (the acromion) and a cushioning sac called the bursa. In shoulder impingement, the tendons and bursa become irritated and sore, usually because they are being overloaded or squeezed during repeated overhead movement.

For overhead athletes, the repetition is the problem. A club tennis player can hit hundreds of serves and overheads in a week. A fast bowler, a swimmer logging kilometres, or a badminton player drilling smashes places the same structures under load again and again, often with too little recovery between sessions.

External vs Internal Impingement: Why the Difference Matters

Athletes often use “impingement” as a single label, but there are two common patterns, and they are treated slightly differently.

Internal impingement is considered a particularly common cause of shoulder pain in overhead athletes, especially tennis players, according to published rehabilitation guidelines for tennis players.

Why Overhead Athletes Develop Shoulder Impingement

Adaptation That Becomes a Problem

Throwing and serving sports reshape the dominant shoulder. Athletes tend to gain external rotation and lose internal rotation on the dominant side, a pattern called glenohumeral internal rotation deficit (GIRD), often defined as a side-to-side deficit of roughly 18 to 20 degrees. On its own this adaptation is common and not always painful, but when combined with a tight back of the shoulder and poor shoulder-blade movement, it can alter how the joint sits and loads the tendons.

The Shoulder Blade (Scapula) Is the Platform

Your shoulder blade needs to rotate and tilt smoothly as the arm rises. When the muscles that control it (serratus anterior, lower and middle trapezius) are weak or fatigued, the roof of the shoulder does not clear the tendons properly. Research on elite tennis players has found a high prevalence of altered scapular movement in the dominant shoulder. Evidence for any single shoulder-blade technique is mixed, so assessment matters more than a one-size-fits-all exercise list.

The Kinetic Chain: It Starts in Your Legs

A serve, smash or fast-bowling action starts from the ground up. Power should travel from your legs through your hips and trunk before it reaches the arm. If your hips or core cannot do their share, the shoulder is forced to produce power it was not built to generate. Our guide on the hidden link between hips, core and hamstring injuries explains how weakness lower down the chain shows up as pain higher up.

Load, Technique and Equipment

A sudden jump in training volume, a new racket, a change in serve technique, or an early-season bowling spike are all common triggers. Fatigue is a bigger risk factor than most players expect, because tired cuff muscles stop centring the shoulder.

“In overhead athletes, I rarely see an impinged shoulder in isolation. When I examine the whole picture, there is almost always stiffness at the back of the shoulder, a shoulder blade that is not doing its job, and a sudden change in training load. Fixing only the painful spot gives short-term relief; fixing the chain gives you a shoulder that lasts.”

Dr. Pradeep Kocheeppan, Knee & Shoulder Surgeon, Move & Shine

Symptoms of Shoulder Impingement in a Tennis Player (and Other Overhead Athletes)

If you searched for the symptoms of shoulder impingement in a tennis player, here is what typically shows up, often in this order.

Early signs

• A dull ache at the front or side of the shoulder after a long match or practice session
• Stiffness the next morning that eases once you warm up
• Mild discomfort when reaching behind your back or into a back seat

Progressing signs

• Sharp pain at the top of the serve, during the cocking phase, or at ball contact
• A painful arc, where pain appears between roughly 60 and 120 degrees of lifting the arm and eases above or below it
• Pain at the back of the shoulder during the late cocking phase, which suggests internal impingement
• A drop in serve speed, accuracy or endurance across a match
• Night pain, especially when lying on the affected side
• A feeling of weakness or “catching” when lifting the arm

What You May Notice in Different Sports

Shoulder pain that comes with chest tightness, breathlessness, sweating or pain spreading to the jaw is not a sports injury until proven otherwise. Treat it as a medical emergency and seek immediate care.

How Shoulder Impingement Syndrome in Overhead Athletes Is Diagnosed

Diagnosis is mainly clinical. A specialist will take a detailed history of your sport, training load and symptom pattern, then examine your neck, shoulder, shoulder blade and rotation range, comparing both sides. Individual “impingement tests” such as the Neer and Hawkins-Kennedy tests are useful but not definitive on their own, so the combined picture matters more than any one test.

Scans are not always needed at the start. An ultrasound or MRI becomes helpful if you have sudden weakness, a history of a fall or dislocation, persistent night pain, or no improvement after a few weeks of good rehabilitation, because the problem may be a rotator cuff tear, a labral injury or shoulder instability rather than simple impingement.

Conditions That Can Mimic Impingement

• Rotator cuff tear:often brings weakness, not just pain. See our guide on rotator cuff injuries and how to prevent them.
• Labral injury or instability:a sense of the shoulder “slipping” or catching.
• Frozen shoulder:stiffness in all directions, not only overhead. Our article on corticosteroid injections for frozen shoulder explains how that differs.
• Neck-related pain:pain, tingling or numbness travelling below the elbow can come from the cervical spine. Our spine specialist Sharan Achar evaluates this group of problems.

Non-Surgical Care for Shoulder Impingement Syndrome in Overhead Athletes

Nonoperative treatment should always be attempted first for impingement in the overhead athlete, with a focus on restoring range of motion and shoulder-blade function, according to a review in the Journal of Bone and Joint Surgery. A good programme is not a list of generic band exercises. It is phased and built around what your assessment finds.

Step 1: Calm It Down Without Stopping Completely

Reduce the aggravating load, such as overhead volume, serve count, or bowling overs, but keep the arm moving within a pain-tolerable range. Complete rest tends to leave the cuff weaker and the shoulder stiffer when you return.

Step 2: Restore Mobility, Especially the Back of the Shoulder

If you have lost internal rotation or have a tight back of the shoulder, stretching and mobilisation of the posterior structures are introduced early and continued throughout rehab. Soft-tissue work and joint mobilisation from your physiotherapist can help here, along with a thoracic-spine mobility routine, because a stiff upper back changes how the shoulder blade moves.

Step 3: Rebuild the Rotator Cuff and Shoulder-Blade Muscles

Progressive strengthening of the external rotators, serratus anterior and the lower and middle trapezius is the core of treatment. Published tennis rehabilitation guidelines recommend particular attention to strength training of the shoulder-blade retractors and to restoring balance within the trapezius. Load is increased gradually, from controlled low-load work to heavier and faster loading as pain settles.

Step 4: Train the Whole Kinetic Chain

Hip, core and leg strength, trunk rotation control and landing mechanics are trained from the early phases, not left as an afterthought. This takes load off the shoulder by letting your lower body contribute its share of the power.

Step 5: Sport-Specific Return

Before you go back to full play, you progress through a structured return: shadow technique, medicine-ball throws, graded serving or bowling programmes with set volumes, and then match play. A coach or biomechanics review of your serve, bowling action or stroke can reveal technical contributors that rehab alone will not fix.

What About Injections and Medication?

Anti-inflammatory medication or a corticosteroid injection may calm a very painful shoulder enough to allow you to rehabilitate, but they do not fix the underlying mobility, strength and load problems. Injections are best seen as a short-term bridge, not a cure. Our overview on corticosteroid injections explains benefits and limits, and your orthopedic specialist can advise whether other options such as PRP are appropriate in your case.

“The athletes who do best are the ones who stay involved in their rehab. A shoulder that hurts is telling you the load has outgrown the strength. If we rebuild the strength and clean up the mechanics, most players return to full sport without surgery.”

Dr. Pradeep Kocheeppan, Knee & Shoulder Surgeon, Move & Shine

Recovery Timeline for Shoulder Impingement in Overhead Athletes

Recovery depends on how long you have had symptoms, how much load you place on the shoulder, and whether other injuries (cuff tear, labral injury) are present. These are typical ranges, not promises.

Many recreational athletes improve within about 6 to 12 weeks. Long-standing problems, or athletes with additional findings on scans, often need longer.

Does Shoulder Impingement Syndrome in Overhead Athletes Ever Need Surgery?

Occasionally, but much less often than many athletes fear. Two major placebo-controlled trials tested “decompression” surgery, in which a surgeon removes a small piece of bone and bursa to create more space:

• The UK CSAW trial, published in The Lancet, found no difference in outcomes between decompression surgery and placebo surgery (arthroscopy only) in people with persistent subacromial shoulder pain.
• The Finnish FIMPACT trialcompared decompression surgery, placebo surgery and exercise therapy, and its 10-year follow-up found decompression offered no benefit over placebo surgery or exercise therapy.

An honest note: these trials mostly enrolled everyday adults, not elite overhead athletes with associated labral or cuff pathology. That is why athletes should be assessed individually rather than assuming one answer fits all.

Surgery becomes a reasonable discussion when:

• A full-thickness rotator cuff tear is confirmed
• A significant labral tear or instability is found
• A well-delivered rehab programme, typically for 3 to 6 months, has not worked
• You are an athlete whose sport demands a structure that cannot be restored by rehab alone

If surgery is ever needed, rehabilitation afterwards is just as important as before. Our guide on why physiotherapy matters as much as surgery in orthopedic care covers this.

Who Is the Best Candidate for Shoulder Surgery?

Not every painful overhead shoulder needs an operation. The best surgical candidates are athletes in whom a specific structural problem has been identified and in whom a well-delivered rehabilitation programme has not been enough. Your orthopedic surgeon will usually consider surgery when most of the following are true:

• A confirmed structural injury on examination and imaging,such as a full-thickness rotator cuff tear, a significant partial-thickness cuff tear, or a labral tear that is causing pain, catching or instability.
• Failure of quality rehabilitation,typically 3 to 6 months of supervised physiotherapy where you attended consistently and the programme was properly progressed.
• Mechanical or instability symptoms,such as the shoulder slipping, locking, or repeated subluxation or dislocation.
• Persistent weakness or loss of functionthat is affecting your sport or daily life, not just pain.
• A clear goal and commitment to rehab,because the surgery repairs the structure, but the rehab rebuilds the shoulder.

Situations Where Surgery Is Usually Considered

Who May Not Be an Ideal Candidate

• Athletes whose pain is coming from the neck rather than the shoulder
• People who have not yet completed a proper rehab trial
• Those with unrealistic expectations about returning to the same level or timeline
• Smokers or people with poorly controlled diabetes, because both can affect tendon healing. Your surgeon will discuss how to optimise this before surgery.

“The decision for surgery is not about the scan alone. I look at the athlete, the sport, the findings and how much rehab has already been done. When the diagnosis is clear and the athlete has tried the right non-surgical care, surgery can be very effective. When the diagnosis is not clear, more surgery is rarely the answer.”

Dr. Pradeep Kocheeppan, Knee & Shoulder Surgeon, Move & Shine

Types of Shoulder Surgery for Overhead Athletes (Including Recent Techniques)

Almost all modern shoulder procedures for athletes are done arthroscopically, meaning keyhole surgery through a few small cuts using a camera and fine instruments. Compared with open surgery, this generally means smaller incisions, less soft-tissue disturbance, and an easier start to rehabilitation. Many procedures are done as day-care or with a short hospital stay.

The right operation depends entirely on what is actually wrong inside your shoulder.

Recent Advances in Shoulder Surgery

Shoulder surgery has evolved significantly. Techniques that are now part of modern arthroscopic practice include:

• Stronger, smaller anchors and knotless fixation.Newer suture anchors, including knotless designs, allow secure tendon-to-bone fixation with less bulk and a lower profile in the joint.
• Double-row and suture-bridge cuff repairs.These techniques spread the tendon across a larger footprint of bone, with the aim of a stronger, flatter repair, particularly in larger tears. The best choice depends on tear size and tissue quality, not a one-size-fits-all approach.
• Repair of partial tears without fully detaching the tendon.This preserves healthy tendon fibres where possible.
• Biologic augmentation.Platelet-rich plasma (PRP), collagen patches and similar options are used in selected cases to support healing. Evidence is still evolving, so these are discussed case by case rather than promised.
• Superior capsular reconstruction.Used only for selected large, irreparable cuff tears, and not a common procedure in typical young overhead athletes.
• Better pain control and enhanced-recovery protocols.Regional nerve blocks and multimodal pain relief help many patients start moving earlier and go home sooner.
• Image-guided and imaging-planned surgery.High-quality MRI planning helps the surgeon choose the right procedure before entering the joint.

Newer is not automatically better. In overhead athletes, the right diagnosis and the right operation for that diagnosis matter more than the latest device.

Physiotherapy Before and After Shoulder Surgery

Physiotherapy is a part of the surgical pathway, not an extra. Surgery fixes the structure; physiotherapy restores movement, strength and sport function. This is why our orthopedic surgeon and physiotherapy team work together. Read more in our guide on why physiotherapy matters as much as surgery in orthopedic care.

Before Surgery (Prehabilitation)

If surgery is planned and not urgent, even 2 to 4 weeks of prehab can improve how smoothly recovery goes. Prehab typically aims to:

• Settle pain and irritationso the shoulder is calmer going into surgery
• Maintain or regain range of motion,because a stiff shoulder before surgery is often a stiffer shoulder after
• Keep the muscles around the shoulder blade and rotator cuff activeas far as pain allows
• Strengthen the legs, core and the opposite arm,which you will rely on while the operated arm is in a sling
• Maintain general fitness,such as walking, cycling or lower-body training
• Prepare you for life in a sling:sleeping position, dressing, one-handed routines, and setting up your home and work area
• Explain the plan,so you know what each phase involves and what the goals are

After Surgery: Phased Rehabilitation

Your exact protocol is set by your surgeon and depends on what was done, the size of the tear, and the quality of the tissue. The table below is a typical framework after a rotator cuff or labral repair. [CONFIRM against Dr. Pradeep’s protocol.]

After procedures that do not involve a tendon or labral repair, such as bursa clearance or debridement, the early protection phase is usually much shorter and rehab moves faster.

Why Rehab Compliance Matters

Doing too much too early can strain a healing repair, and doing too little can leave the shoulder stiff and weak. Attend your sessions, follow the sling and movement instructions, and report any sudden pain, loss of movement or a feeling that something has “given way”.

Planned Return to Normal Activities and Sport After Shoulder Surgery

Return to activity is guided by healing, strength and movement quality, not just the calendar. The timelines below are typical ranges after arthroscopic repair, and your surgeon and physiotherapist will tailor them to you.  

Return-to-Sport Checklist

Before you are cleared for full competition, your team will usually check that you have:

• Full or near-full pain-free range of motioncompared with the other shoulder
• Strength close to the other side(a commonly used target is at least 90 percent)
• Good shoulder-blade controlduring overhead movement
• Adequate hip, core and leg strengthto share the load
• Completed an interval programmefor your sport (graded serves, bowling spells, throws or swimming sets) without pain
• Confidence and enduranceat match intensity

A Sample Sport Return Path (Tennis)

1. Shadow strokes and light ground strokes
2. Controlled mini-tennis and forehand and backhand rallies
3. Light serves in short sets, then gradually increasing numbers
4. Full-speed serves and overheads
5. Practice matches, then competitive play

Cricketers, swimmers and badminton players follow a similar graded pattern: lower volume and intensity first, then more volume, then speed, then competition.

Warning signs to report promptly: new sharp pain, sudden loss of movement, increasing swelling, fever, redness or wound discharge, or a feeling of the shoulder giving way.

Preventing Shoulder Impingement in Overhead Athletes

• Build workload gradually:avoid sudden jumps in serving, bowling or training volume, particularly at the start of a season.
• Warm up the shoulder properly:include shoulder-blade and rotator cuff activation, not just arm circles.
• Keep the strength in the right places:train external rotators, serratus anterior, trapezius, core and legs year-round.
• Maintain mobility:include posterior-shoulder and upper-back mobility. Our article on yoga for joint health after 40 offers accessible mobility work that also helps younger athletes.
• Do not play through worsening pain:early assessment shortens recovery.
• Review technique and equipment:a coach or biomechanical review can spot serving or bowling faults.

For a broader strength and joint-preservation framework, see our guide to longevity training for musculoskeletal health.

Best Physiotherapy for Shoulder Impingement Syndrome in Overhead Athletes Near Me in Bangalore

If you are searching for the best physiotherapy centres for shoulder impingement in overhead athletes near you, a useful way to compare clinics is to check whether they:

1. Assess the whole chain,not just the shoulder: neck, upper back, shoulder blade, hips and core.
2. Measure and compare both sides,including rotation range and strength.
3. Offer a phased, sport-specific planwith clear milestones and return-to-sport criteria.
4. Have an orthopedic specialistwho can order and interpret scans and discuss injections or surgery if needed.
5. Explain the plan clearlyand track progress.

At Move & Shine Orthopedic Wellness Centre, on Uttarahalli Main Road in South Bangalore, shoulder and sports injuries are assessed by an orthopedic team led by Dr. Pradeep Kocheeppan, a knee and shoulder surgeon with over 20 years of experience in arthroscopy, sports injury care and joint preservation. Our orthopedic team also includes sports medicine specialist Dr. Viresh Murgodi. If your shoulder pain needs imaging, injection guidance or a surgical opinion, you can have that conversation under one roof. 

Because our orthopedic surgeons and physiotherapists work under one roof, your assessment, scans, injection decisions, surgical opinion (if needed), pre-surgery prehab and post-operative rehabilitation can be planned together. Whether you need a second opinion on a recommended operation or want to know if surgery can be avoided, you can book a consultation to discuss your options.

Learn more about our shoulder pain treatment in Bangalore and our wider orthopedic wellness services. To book an assessment, call +91-96320 14086.

Frequently Asked Questions

1. What is shoulder impingement syndrome in overhead athletes?
   It is pain caused by irritation of the rotator cuff tendons or bursa during repeated overhead movement. Athletes in tennis, cricket, badminton, swimming and volleyball are commonly affected.
2. What are the symptoms of shoulder impingement in a tennis player?
   Typical symptoms are pain at the top of the serve or overhead smash, a painful arc when lifting the arm, night pain when lying on the affected side, back-of-shoulder pain in the late cocking phase, and reduced serve speed or endurance.
3. Which are the best physiotherapy centres for shoulder impingement in overhead athletes near me?
   Look for a clinic that assesses the whole kinetic chain, compares both shoulders, offers a phased sport-specific plan and has orthopedic input. In Bangalore, Move & Shine in Uttarahalli offers orthopedic and physiotherapy care for shoulder and sports injuries.
4. Can I keep playing with shoulder impingement?
   Often you can continue in a modified way, by reducing overhead volume and avoiding painful movements, but playing through worsening pain delays recovery. A specialist can advise how much load is safe.
5. How long does shoulder impingement take to heal in athletes?
   Many recreational athletes improve in about 6 to 12 weeks with structured rehabilitation. Long-standing cases, or those with a cuff or labral problem, may take 3 to 6 months or more.
6. Is shoulder impingement the same as a rotator cuff tear?
   No. Impingement describes irritation and pain; a tear is a structural injury. A tear often causes noticeable weakness and may need a scan, so persistent weakness should be assessed.
7. What is the difference between internal and external impingement?
   External (subacromial) impingement usually causes pain at the top or side of the shoulder when lifting overhead. Internal impingement typically causes back-of-shoulder pain in the late cocking phase of throwing or serving and is more common in throwers and tennis players.
8. Do I need surgery for shoulder impingement?
   Usually not. Large placebo-controlled trials found decompression surgery was no better than placebo surgery or exercise for most subacromial pain. Surgery is considered for confirmed tears, labral injuries, instability or failed rehabilitation.
9. Which exercises help shoulder impingement in overhead athletes?
   Exercises that improve back-of-shoulder mobility and strengthen the external rotators, serratus anterior and lower trapezius help most, alongside hip and core work. The right selection depends on your assessment, so start with a physiotherapist’s plan rather than random exercises.
10. Why does my shoulder hurt at night?
    Night pain, especially when lying on the affected side, is common in impingement and rotator cuff irritation. Persistent or severe night pain deserves an assessment.
11. Are cortisone injections a good treatment for shoulder impingement?
    They can reduce pain for a limited time and help you do rehabilitation, but they do not correct the strength and mobility problems behind the pain, so they work best alongside rehab.
12. When should I see a doctor for shoulder pain from sport?
    See a doctor if pain lasts beyond 2 to 3 weeks, if you have sudden weakness, night pain or a drop in performance, or after a fall or dislocation. Seek emergency care if shoulder pain comes with chest pain, breathlessness or sweating.

    13. Who is the best candidate for shoulder surgery?
    Athletes with a confirmed structural problem, such as a full-thickness rotator cuff tear, a significant labral tear or shoulder instability, or those who have not improved after 3 to 6 months of well-delivered rehabilitation. Pain alone, without a clear structural cause, is usually managed without surgery.

13. What types of shoulder surgery are done for overhead athletes?
    Common procedures include arthroscopic rotator cuff repair, labral repair, shoulder stabilisation, partial-thickness tear treatment, and in selected cases posterior capsular release or biceps procedures. Most are done arthroscopically (keyhole). Decompression alone is now used far less often.
14. Is keyhole (arthroscopic) shoulder surgery better than open surgery?
    For most athletic shoulder problems, arthroscopic surgery is preferred because it uses smaller incisions and less soft-tissue disturbance, which generally supports an easier early recovery. The right approach still depends on the specific injury, and your surgeon will advise.
15. Do I need physiotherapy before shoulder surgery?
    Often, yes. Prehabilitation helps settle the shoulder, maintain movement, strengthen the rest of the body and prepare you for life in a sling, which usually makes recovery smoother.
16. How long does it take to return to sport after shoulder surgery?
    It depends on the procedure. After smaller procedures, many athletes return to overhead sport in about 3 to 4 months. After a rotator cuff or labral repair, return to full overhead sport is often 6 to 12 months, guided by strength and movement criteria rather than the calendar alone.
17. When can I drive or ride a two-wheeler after shoulder surgery?
    After a repair, driving is usually possible at around 4 to 6 weeks and two-wheeler riding often later, at around 8 to 12 weeks, but this depends on your surgeon’s advice and your control of the arm. After smaller procedures, the timelines are shorter.

This article is for general informational purposes and does not replace a professional orthopedic or physiotherapy assessment. If you have sudden severe weakness, a deformed shoulder after trauma, or shoulder pain with chest pain or breathlessness, seek immediate medical care.

Sources

• The Lancet, CSAW trial: Arthroscopic subacromial decompression for subacromial shoulder pain
• BMJ 2018, FIMPACT trial: Subacromial decompression versus diagnostic arthroscopy for shoulder impingement
• FIMPACT 10-year follow-up: Arthroscopic subacromial decompression versus placebo surgery for subacromial pain syndrome
• British Journal of Sports Medicine: Internal impingement in the tennis player: rehabilitation guidelines
• Journal of Bone and Joint Surgery: Internal impingement of the shoulder in the overhead athlete
• AAPM&R Knowledge Now: Impingement Syndromes of the Shoulder
• Physiopedia: Shoulder Impingement (Internal)
• International Journal of Sports Physical Therapy: Scapular Dyskinesis, Glenohumeral Internal Rotation, and Pectoralis Minor Length in Male Elite Tennis Players