Golf Shoulder Injuries: Rotator Cuff Problems in Golfers

Golf is one of the most widely played sports in Malaysia, with courses dotting the landscape from the prestigious clubs of Kuala Lumpur and Petaling Jaya to community courses throughout the Klang Valley and beyond. The sport attracts a broad demographic, from young professionals to retirees, all of whom share a passion for the game and, often, a vulnerability to the injuries it can cause. While golf is often perceived as a low-impact sport, the biomechanics of the swing place remarkable demands on the shoulder joint, particularly the rotator cuff.

At Kinesio Rehab in Putra Heights, Subang Jaya, shoulder pain is one of the most common complaints among our golfing patients. The rotator cuff, a group of four muscles and their tendons that stabilise and move the shoulder, is uniquely stressed during the golf swing. Understanding how the swing affects this critical structure is the first step toward effective prevention and recovery.

Anatomy of the Rotator Cuff and Its Role in Golf

The rotator cuff comprises four muscles: the supraspinatus, infraspinatus, teres minor, and subscapularis. Together, they form a tendinous cuff that envelops the humeral head, keeping it centred within the shallow glenoid socket of the shoulder blade during movement. The supraspinatus initiates arm abduction and stabilises the humeral head, the infraspinatus and teres minor externally rotate the arm, and the subscapularis provides internal rotation and anterior stabilisation.

During the golf swing, all four rotator cuff muscles work dynamically through extreme ranges of motion, high velocities, and against significant forces. The professional golf swing generates clubhead speeds exceeding 160 kilometres per hour, and the forces transmitted through the shoulder are substantial. Even recreational golfers generate significant rotational velocities that challenge the rotator cuff's ability to maintain glenohumeral stability throughout the swing arc.

A single round of golf typically involves 30 to 40 full swings plus practice swings, and many avid golfers add range sessions during the week. Over a golfing career spanning decades, the cumulative loading on the rotator cuff is enormous. This is compounded by the fact that many Malaysian golfers continue playing well into their sixties and seventies, an age when the tendons have naturally lost some of their resilience and blood supply.

Swing Phase Analysis: Where Injuries Happen

The golf swing can be divided into distinct phases, each placing different demands on the shoulder. Understanding these phases helps explain why specific rotator cuff injuries develop and informs targeted prevention strategies.

• Backswing: The lead arm (left arm for right-handed golfers) moves across the body into horizontal adduction and internal rotation, while the trail arm abducts and externally rotates. The subscapularis of the lead arm and the supraspinatus of the trail arm are particularly active during this phase.
• Downswing and impact: This is the most demanding phase for the shoulders. The lead arm accelerates through a wide arc, and the rotator cuff must stabilise the humeral head against centrifugal forces while the larger muscles generate power. Peak supraspinatus activity occurs just before and during impact.
• Follow-through: The trail arm crosses the body and moves into internal rotation and horizontal adduction. The deceleration forces during this phase place significant eccentric loading on the infraspinatus and teres minor of the trail arm as they work to slow the arm down.

Lead Arm vs Trail Arm: Different Injury Patterns

An important and often overlooked aspect of golf shoulder injuries is that the lead and trail shoulders experience fundamentally different stresses during the swing, leading to distinct injury patterns.

The lead shoulder (left shoulder in right-handed golfers) is most commonly affected by impingement and labral injuries. During the backswing, the lead arm is pulled across the body into a position of horizontal adduction and internal rotation, which compresses the rotator cuff tendons and can irritate the superior labrum. During the downswing and follow-through, the lead shoulder must stabilise against significant centrifugal and deceleration forces. Subacromial impingement of the lead shoulder is the most common rotator cuff problem in golfers, presenting as pain during the backswing or at the top of the swing.

The trail shoulder (right shoulder in right-handed golfers) is more susceptible to posterior labral injuries and infraspinatus strain. During the follow-through, the trail arm moves rapidly into internal rotation and horizontal adduction, and the posterior rotator cuff and labrum must absorb significant deceleration forces. Trail shoulder injuries often present as pain during or after the follow-through phase.

At our clinic, identifying whether the lead or trail shoulder is affected, and during which swing phase symptoms occur, is essential for developing an accurate diagnosis and effective treatment plan.

Supraspinatus Issues: The Most Vulnerable Tendon

The supraspinatus is the most commonly injured rotator cuff tendon in golfers, reflecting its critical role in the swing and its inherent anatomical vulnerability. The tendon passes through the narrow subacromial space between the acromion and the humeral head, making it susceptible to compression during overhead and cross-body movements. Additionally, the supraspinatus tendon has a region of relatively poor blood supply near its insertion point, known as the "critical zone," which makes it more prone to degenerative changes and slower to heal after injury.

Supraspinatus tendinopathy in golfers typically develops gradually. Initial symptoms may include a mild ache after prolonged practice or play, particularly during shots that require full swings. As the condition progresses, pain may occur during the swing itself, particularly in the downswing and impact phases when supraspinatus activity is highest. Night pain, especially when lying on the affected shoulder, is a hallmark of more advanced tendinopathy.

Partial-thickness tears of the supraspinatus are common in golfers over 50 and may be present without symptoms. However, the repetitive loading of the golf swing can cause a previously asymptomatic partial tear to become painful and progressive. Imaging with ultrasound or MRI can help characterise the extent of tendon damage and guide treatment decisions.

Prevention Exercises for Golf Shoulder Health

A targeted exercise programme performed two to three times per week can significantly reduce the risk of rotator cuff problems in golfers. The following exercises address the specific demands the golf swing places on the shoulder.

• Side-lying external rotation: Lying on the opposite side with the elbow bent to 90 degrees, slowly rotate the forearm upward against gravity or light resistance. This isolates the infraspinatus and teres minor, building the posterior rotator cuff strength critical for decelerating the swing.
• Prone Y-T-W raises: Lying face-down, raise the arms into Y, T, and W positions. These exercises target the lower trapezius and serratus anterior, which are essential for maintaining proper scapular positioning during the swing.
• Cross-body stretch: Gently pulling the arm across the body stretches the posterior shoulder capsule and muscles, which can become tight in golfers and contribute to altered shoulder mechanics.
• Thoracic rotation drills: Improving thoracic spine rotation reduces the compensatory demands on the shoulders during the swing. Golf-specific rotation exercises using a club or resistance band are particularly effective.

When Surgery Is Needed and What to Expect

The vast majority of golf-related rotator cuff problems respond well to conservative management, including physiotherapy, activity modification, and progressive loading. However, surgery may be indicated in certain circumstances. Full-thickness rotator cuff tears in active golfers who have not improved with three to six months of physiotherapy may benefit from arthroscopic repair. Severe impingement that does not respond to conservative measures may require subacromial decompression.

Following rotator cuff repair, the rehabilitation timeline is typically four to six months before a golfer can resume putting and chipping, and six to nine months before returning to full swings. The surgery itself repairs the structural damage, but the success of the outcome depends heavily on the quality of the rehabilitation programme. At Kinesio Rehab, our post-surgical rehabilitation protocols are designed to protect the repair while progressively restoring the range of motion, strength, and neuromuscular control needed for a confident return to the golf course.

For Malaysian golfers considering surgery, we recommend seeking a consultation with a shoulder specialist and beginning a pre-surgical strengthening programme, known as prehabilitation, to optimise outcomes. Stronger muscles and better baseline function before surgery are consistently associated with faster and more complete recovery.