Tennis is a dynamic, high-speed sport that places significant demands on the neck, shoulder, and entire upper body. Many injuries occur during the tennis serve, one of the most powerful movements in sport. Understanding the biomechanics behind the serve can help explain why shoulder and neck injuries are so common among tennis players.
The Tennis Serve: A Whole-Body Movement
The tennis serve is not just an arm motion—it’s a full-body sequence called the kinetic chain. Power begins from the ground and travels through the legs, hips, trunk, and finally into the shoulder, elbow, and wrist.
This sequence occurs through four phases:
- Wind-up – Preparation for the serve
- Cocking phase – The body stores energy
- Acceleration phase – Energy is transferred to the racquet and ball
- Follow-through – Muscles decelerate the arm and absorb force
When these phases work efficiently, athletes can generate significant power while minimizing injury risk.
Why Shoulder Injuries Are So Common
During the late cocking phase of the serve, the shoulder reaches extreme positions. These positions place significant stress on the shoulder capsule, rotator cuff, and surrounding stabilizing structures. Over time, repetitive loading can lead to conditions such as: rotator cuff tendinitis or tears, labral injuries, shoulder impingement, biceps tendon irritation, shoulder instability.
Many of these injuries are related to eccentric overload, where muscles must control rapid movements while lengthening under tension.
How Physical Therapy Helps Tennis Athletes
Successful rehabilitation focuses on more than just the painful joint. Effective treatment often includes:
Shoulder strength and stability training
- Scapular mechanics and endurance work
- Cervical spine mobility and control
- Lower-body power and force generation
- Sport-specific movement retraining
By addressing the entire movement system, athletes can improve performance while reducing the risk of recurrent injury.
The Takeaway
The tennis serve is one of the most demanding movements in sports. Shoulder injuries often occur when the body cannot efficiently transfer power through the kinetic chain.
Understanding tennis mechanics is critical for both injury prevention and successful rehabilitation.
At Aureum Physio, we perform detailed movement assessments to identify the root causes of shoulder and neck pain in athletes and guide them back to peak performance.