What Is Shoulder Injuries in Sport? Symptoms, Causes and Treatment
Updated: Nov 4
By Maria Josefina Cánepa Bustos
Senior Musculoskeletal Physiotherapist · Registered with the Australian Health Practitioner Regulation Agency (PHY0002918524)
Maria Josefina Cánepa Bustos is a Senior Musculoskeletal Physiotherapist with eight years of clinical experience spanning private practice, high-performance sport, and academia
Last reviewed: 25 October 2026
Shoulder injuries in sport cover a range of problems affecting the rotator cuff (the group of muscles and tendons that stabilise the shoulder), impingement (where tissues get pinched in the shoulder joint during movement), and instability (when the shoulder feels loose or like it might slip out of place). These injuries are common in sports that involve overhead movements, like volleyball, tennis and swimming, as well as in people who lift weights regularly or stay active despite desk-based work. Most shoulder injuries in sport develop gradually from altered movement patterns, poor upper back and shoulder blade control, or training errors, rather than from a single traumatic event. With the right assessment and treatment, many people recover well and return to their sport, typically within 8 to 16 weeks depending on the severity and how early they seek help.
At a Glance
What it is | A group of shoulder problems including rotator cuff injuries, impingement (pinching of tissues during movement), and instability, common in overhead sports and weightlifting |
Common symptoms | Pain during or after overhead activities, weakness when lifting the arm, a catching or pinching sensation in the shoulder, night pain when lying on the affected side, clicking or grinding sounds |
Who it affects | Athletes in overhead sports (volleyball, tennis, swimming), recreational weightlifters, active office workers, and young athletes in training |
Typical recovery | 8 to 16 weeks with appropriate physiotherapy, exercise rehabilitation, and training modification; early intervention may lead to faster recovery |
Outlook | Good with multifactorial treatment addressing movement patterns, strength deficits, and load management; recurrence is common without addressing underlying causes |
What it feels like: symptoms
Pain in the front or side of your shoulder during overhead movements or reaching behind your back
Weakness when lifting your arm, particularly above shoulder height
A catching, pinching or grinding sensation when you move your shoulder
Deep ache in the shoulder that doesn't go away, even at rest
Night pain that wakes you when you roll onto the affected shoulder
Shoulder feeling loose, unstable, or like it might slip out of place
Clicking or popping sounds during movement
Difficulty with everyday tasks like washing your hair, reaching into the back seat of the car, or lifting objects overhead
Understanding shoulder injuries in sport
The shoulder is where your upper arm bone, shoulder blade, and collarbone meet. It's built for a huge range of movement, which makes it brilliant for throwing, swimming, lifting and reaching, but also means it relies heavily on the muscles around it for stability and control. When those muscles aren't working properly, or when you're asking your shoulder to do more than it's currently able to handle, injuries develop.
Rotator cuff problems involve the four muscles and their tendons that wrap around the shoulder joint like a cuff, controlling rotation and keeping the upper arm bone centred in its socket. These can range from irritation and inflammation (tendinopathy) to partial or complete tears. Impingement happens when the space between the bones in your shoulder narrows during certain movements, pinching the rotator cuff tendons or the fluid-filled sac (bursa) that sits above them. Instability means the shoulder joint feels loose or slips partially out of position, either because the ligaments have been stretched or because the muscles aren't holding it securely.
What links all three is altered mechanics. The shoulder doesn't work in isolation—it's part of a chain that includes your neck, upper back, and shoulder blade. If your upper back is stiff, or your shoulder blade isn't moving and stabilising properly, your shoulder joint has to compensate, often by moving in ways it wasn't designed for. Over time, that compensation leads to pain, weakness, and injury.
We see shoulder injuries most often in sports that load the upper body heavily—volleyball and tennis players, swimmers, people lifting weights regularly—but also in office workers who stay active. The desk posture they hold all day (rounded shoulders, forward head) undoes the work they're trying to do in the gym or on the court, creating a cycle of tightness and poor movement patterns that eventually catches up with them.
"Patients don't really understand how and at what extent the neck, upper back and shoulders are connected," says Maria Josefina Canepa Bustos, Senior Musculoskeletal Physiotherapist. "I always spend a lot of time explaining how they interact and why something that is happening in one area affects the other. This is in terms of what I specifically do in physio, but also so they understand why they need to do certain exercises."
What causes shoulder injuries and who gets them
Most shoulder injuries in sport aren't caused by a single incident. They build up over weeks or months when the load you're putting on your shoulder exceeds what it can currently handle. That might be because you've increased your training volume too quickly, your technique has flaws that stress the shoulder in the wrong way, or the muscles that should be supporting your shoulder—particularly the deep stabilisers in the rotator cuff and around your shoulder blade—are weak or not switching on at the right time.
Poor upper back mobility is a major contributor. If your upper back is stiff, your shoulder blade can't glide and rotate properly across your ribcage, which means your shoulder joint has to work harder and move through a compromised range. Similarly, if your shoulder blade isn't stable—if the muscles that anchor it aren't doing their job—the rotator cuff has to compensate, and it's not built to take that load alone.
Technique errors are common, particularly in overhead sports. A volleyball player who doesn't rotate their body properly during a spike loads their shoulder excessively. A swimmer whose hand enters the water thumb-first rather than fingertip-first creates impingement with every stroke. A weightlifter who lets their shoulder roll forward during a press puts the rotator cuff in a vulnerable position under load.
Some shoulder injuries are more acute. An ACJ subluxation (where the collarbone partially separates from the shoulder blade at the AC joint, usually from a fall or direct blow) needs different management, and certain conditions require an orthopaedic surgeon's review. But in most cases, sport-related shoulder injuries come down to altered mechanics—lack of mobility in the upper back, neck or shoulder, weakness in the deep stabilising muscles, and poor movement patterns or training errors.
According to a 2024 systematic review in the International Journal of Sports Physical Therapy, male sex, sporting participation, and certain anatomical factors increase the risk of first-time shoulder instability, while younger age, male sex, and previous instability with associated injury increase the risk of recurrence. Overhead athletes and those in contact sports carry higher risk, but recreational gym-goers and active office workers are not immune, particularly when training load outpaces tissue capacity.
How shoulder injuries are assessed and treated
Assessment starts the moment you walk into the room. How you move, whether you're guarding the shoulder, how you use the affected arm when you sit down—all of this tells the story before a single test is done. A thorough assessment looks at your shoulder in isolation and as part of the whole system: how your neck moves, how stiff your upper back is, how your shoulder blade glides and stabilises, and how the shoulder joint itself behaves through its full range.
The goal is to understand not just what hurts, but why. Is the pain coming from a rotator cuff tendon that's been overloaded? Is something getting pinched during certain movements? Is the shoulder unstable, or does it just feel weak because the muscles aren't firing properly? And crucially, what's happening further up or down the chain that's contributing to the problem?
Treatment is built around progressive resistance exercise—strengthening the rotator cuff and the muscles that stabilise your shoulder blade, and retraining the movement patterns that have gone wrong. According to the Journal of Orthopaedic & Sports Physical Therapy (2021), progressive resistance exercise is recommended as a first-line approach for rotator cuff-related shoulder pain, supported by education, activity modification, and selected mobility work. The 2025 clinical practice guideline from the American Physical Therapy Association provides evidence-based recommendations for assessment, nonsurgical management, and rehabilitation in adults with rotator cuff tendinopathy, including partial-thickness tears.
Hands-on treatment—manual therapy to restore movement in stiff joints, soft tissue release to settle down overactive muscles, and dry needling to release trigger points—plays an important role in getting you moving freely enough to do the exercises properly. Pain and stiffness create guarding and compensation, so addressing those symptoms early allows the strengthening work to happen in better positions.
Load management is central. You don't usually need to stop your sport completely, but you do need to modify it while your shoulder rebuilds its capacity. That might mean reducing your training volume by 30 to 50 per cent initially, avoiding the most painful movements temporarily, or changing how you train—using lighter weights with better control, focusing on technique drills rather than full-intensity play, or substituting activities that don't provoke symptoms while you work on the underlying problem.
A helpful guide is the traffic light system for pain. Pain between 0 and 3 out of 10 is the green zone—mild discomfort that doesn't stop you continuing. Pain between 3 and 5 is the yellow zone—you can continue with caution, but pay attention to how long it takes to settle and whether it worsens after activity; if it lingers or gets worse, reduce the load. Pain above 5 or 6 is the red zone, where your body is signalling it's not tolerating the load at that time and you should stop.
Different approaches at Physio K
At Physio K, physiotherapy and massage therapy work together to address shoulder injuries from complementary angles.
Physiotherapy focuses on assessment, diagnosis, and active rehabilitation. A physiotherapist conducts a thorough movement assessment to identify the mechanical drivers of your shoulder pain—whether that's upper back stiffness, poor shoulder blade control, rotator cuff weakness, or faulty movement patterns—and builds a treatment plan that addresses all of them. Treatment combines hands-on techniques (manual therapy, joint mobilisation, dry needling) to restore movement and settle symptoms, with progressive exercise prescription tailored to your sport and your specific deficits. The physiotherapist also manages your training load, works with you on technique modification where needed, and guides your return to full activity with objective criteria rather than guesswork.
Massage therapy complements this by addressing muscle tension, trigger points, and soft tissue restrictions that contribute to altered shoulder mechanics. Tight muscles in the chest, neck, or upper back can limit your movement and pull your shoulder into poor positions; massage therapy releases that tension, improving your range of motion and allowing the exercises the physiotherapist prescribes to work more effectively. It's particularly useful for managing the day-to-day tightness that builds up from training or desk work, helping you stay on top of symptoms between physio sessions.
The two approaches work best together. Physiotherapy gives you the diagnosis, the exercise program, and the roadmap back to your sport. Massage therapy keeps the soft tissues in good condition, supports recovery between training sessions, and helps you maintain the mobility gains you're working toward. One addresses the cause, the other supports the process.
What the research shows
Progressive resistance exercise forms the foundation of evidence-based treatment for shoulder injuries in sport. The Journal of Orthopaedic & Sports Physical Therapy (2021) states that progressive resistance exercise is recommended as a first-line approach for non-traumatic rotator cuff-related shoulder pain, with education, activity modification, and selected mobility work used to support recovery. This isn't about generic shoulder strengthening—it's about identifying which muscles aren't doing their job properly and retraining them in a way that restores normal movement patterns.
The 2025 clinical practice guideline from the American Physical Therapy Association provides comprehensive evidence-based recommendations for managing rotator cuff tendinopathy, including partial-thickness tears and calcific tendinopathy. The guideline emphasises assessment, nonsurgical medical care, rehabilitation, prognosis, and return to function or sport, reinforcing that most people recover well with conservative management when treatment addresses the underlying mechanical and load-related factors.
For athletes with shoulder instability, outcomes after appropriate management are generally favourable. A 2023 systematic review in the Journal of Clinical Medicine found that athletes demonstrated favourable long-term outcomes and high return-to-sport rates after arthroscopic shoulder stabilisation, though recurrent instability, redislocation, and revision surgery remained clinically relevant risks. This highlights the importance of addressing instability appropriately—some cases respond well to physiotherapy-led strengthening and motor control work, while others require surgical stabilisation before rehabilitation can proceed.
Understanding your risk factors helps with prevention. The 2024 systematic review in the International Journal of Sports Physical Therapy identified male sex, sporting participation, hypermobility in males, and certain anatomical features of the shoulder socket as factors associated with first-time instability risk, while younger age, male sex, and previous instability with associated injury were associated with recurrence risk. If you've had one shoulder dislocation or episode of instability, the risk of it happening again is higher unless you address the underlying control and strength deficits.
Most people see meaningful improvement within 6 to 12 weeks of starting appropriate treatment, though return to full training typically takes 8 to 16 weeks depending on the severity of the injury, how early you sought help, and how consistently you follow the rehabilitation program. Recurrence is common if you don't address the underlying causes, which is why treatment focuses not just on settling symptoms but on changing the movement patterns, strength deficits, and training errors that created the problem in the first place.
When to seek urgent help
Seek urgent medical assessment if you experience sudden, severe shoulder pain after a fall or direct blow, particularly if your shoulder looks deformed or you can't move it at all—this may indicate a dislocation or fracture. See your GP promptly if you have shoulder pain accompanied by fever, redness, or swelling, which could suggest infection, or if you develop sudden weakness in your arm or hand that doesn't match the pattern of your shoulder injury. Numbness, tingling, or colour changes in your arm or hand warrant prompt assessment, as these may indicate nerve or blood vessel involvement.
Cost and funding
Physiotherapy for shoulder injuries may be funded through several pathways. If you have a chronic condition and are eligible for a GP Chronic Condition Management Plan, you may receive a Medicare rebate for up to five allied health sessions per year; a gap payment usually applies, and rebate amounts change, so confirm the current amount with your GP or the clinic. Private health insurance extras cover may contribute to the cost of physiotherapy and massage therapy, depending on your level of cover and whether you've served any waiting periods; check with your insurer for details. NDIS participants may access physiotherapy where it is reasonable and necessary as part of their plan, and WorkCover funds treatment for accepted work-related injuries. Confirm your eligibility and the current costs with your GP, insurer, plan manager, or the clinic before your first appointment.
Common questions
I'm 19 and was told I have the shoulder of a 50-year-old. Is my sporting career over?
Not necessarily. What that comment usually means is that imaging has shown some wear or early tendon changes, which are surprisingly common even in young athletes and don't predict whether you'll recover or return to sport. Your shoulder's capacity to handle load is what matters, and that's trainable. With the right rehabilitation—addressing movement patterns, building strength in the right muscles, and managing your training load—many young athletes return to full sport. The imaging finding is just information, not a sentence.
If my muscles feel tight all the time, how can they be weak?
Tightness and strength are different things. A muscle often feels tight because it's working harder than it should to compensate for weakness somewhere else, or because your body doesn't feel confident controlling a movement and tightens up as a protective response. For a muscle to be strong, it needs to be able to both contract powerfully and relax fully. A muscle that's constantly tight doesn't have the freedom to generate as much force as it should. That's why treatment focuses not only on reducing tightness but also on improving strength, control, and movement quality—so your body learns it can move safely and stops holding on so hard.
Do I have to stop my sport completely to recover?
Usually, no. Most overuse shoulder injuries respond better to modified training than complete rest. Stopping entirely can lead to deconditioning, stiffness, and loss of the movement patterns you've built, which makes returning harder. The key is load management—reducing intensity, frequency, or duration so your shoulder isn't being overloaded, while maintaining enough activity to keep your fitness and skills. You might train at 50 to 70 per cent of your normal volume initially, avoid the movements that provoke the worst pain, or substitute activities that don't stress your shoulder while you rebuild its capacity. Your physiotherapist will guide you on what's safe to continue and when to progress.
How long will it take before I can return to full training?
Most people see meaningful improvement within 6 to 12 weeks of starting treatment, but return to full training typically takes 8 to 16 weeks depending on the severity of the injury and how early you sought help. Shoulder injuries are usually multifactorial, so recovery isn't just about waiting for pain to settle—it's about retraining movement patterns, building strength in the muscles that weren't doing their job, and progressively loading your shoulder so it can tolerate the demands of your sport again. Rushing back before you've addressed the underlying causes is the most common reason shoulder injuries recur. Your physiotherapist will use objective markers—pain-free range of motion, strength tests, and sport-specific tasks—to guide your progression, not just the calendar.
If you’re dealing with a shoulder injury and want a clear plan to get back to your sport, book an appointment with Physio K or contact the clinic to talk it through.
Looking for more general information? Read our guide to shoulder pain: causes, diagnosis and treatment.
Reviewed by Mark Howlin. Mark Howlin is an Associate Physiotherapist at Physio K, with a focus on sporting injuries and post-operative rehabilitation with advanced dry needling training from Ireland and Sydney. He has also served as team physiotherapist to elite GAA athletes, including during a championship-winning run at Croke Park. Registered with the AHPRA (PHY0004060355).
This article is for general information only and is not a substitute for personal medical advice. If you have concerns about your health, please consult a qualified clinician or your GP.
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