Tennis Elbow Exercises: Physical Therapy for Lateral Epicondylitis

What is tennis elbow and why does it develop?

Lateral epicondylitis affects the tendons that attach the wrist extensor muscles (primarily extensor carpi radialis brevis) to the bony prominence on the outer side of the elbow. Despite the name, most cases occur in people who have never played tennis — repetitive gripping, typing, painting, carpentry, and any activity that loads the wrist extensors can cause it.

Like other tendinopathies, the underlying problem is disorganized tendon tissue rather than true inflammation. The tendon has been repeatedly loaded beyond its capacity to recover, leading to structural changes that cause pain with gripping, lifting, and even turning a door handle.

It commonly affects people between 30 and 50 years of age and can persist for months to years without proper rehabilitation.

Why exercise — not rest — is the core treatment

The wrist extensor tendon at the elbow responds to progressive loading in the same way other tendons do. Eccentric exercises — where the muscle lengthens under tension — and heavy slow resistance training stimulate the tendon to reorganize and strengthen over weeks of consistent practice 1Ref 1Kongsgaard M, Kovanen V, Aagaard P, Doessing S, Hansen P, Laursen AH, Kaldau NC, Kjaer M, Magnusson SP (2009).Corticosteroid injections, eccentric decline squat training and heavy slow resistance training in patellar tendinopathy.Eccentric and heavy slow resistance loading protocols are effective for tendinopathy; principles transfer to lateral epicondylitis2Ref 2Martin RL, Chimenti R, Cuddeford T, Houck J, Matheson JW, McDonough CM, Paulseth S, Wukich DK, Carcia CR (2018).Achilles Pain, Stiffness, and Muscle Power Deficits: Midportion Achilles Tendinopathy Revision 2018.APTA CPG supporting loading-based exercise as primary tendinopathy treatment and cautioning against repeated corticosteroid use.

For Achilles and patellar tendinopathy, the evidence base for this approach is well established 1Ref 1Kongsgaard M, Kovanen V, Aagaard P, Doessing S, Hansen P, Laursen AH, Kaldau NC, Kjaer M, Magnusson SP (2009).Corticosteroid injections, eccentric decline squat training and heavy slow resistance training in patellar tendinopathy.Eccentric and heavy slow resistance loading protocols are effective for tendinopathy; principles transfer to lateral epicondylitis. The principles transfer directly to lateral epicondylitis. The exercises are simple, require minimal equipment, and can be done at home once taught correctly.

The key exercises for tennis elbow

Eccentric wrist extension: 1. Sit with your forearm resting on a table, palm facing down, elbow bent to about 90 degrees 2. Hold a light weight (start with 0.5–1 kg) and use your other hand to help lift your wrist into extension (the top) 3. Lower the weight slowly — taking 3 to 4 seconds — until your wrist is fully flexed 4. Use the other hand to help bring it back to the start; the eccentric (lowering) phase is the treatment 5. Begin with 3 sets of 15 repetitions; progress weight as tolerated over weeks

Heavy slow resistance wrist extension: Same position, but perform both the lifting and lowering phases on your own, using a slow tempo (3 seconds up, 3 seconds down). This loads the tendon through both phases of movement and is similarly effective to eccentric-only protocols.

Grip strengthening: As pain allows, progressive grip strengthening with a therapy putty or hand gripper helps restore overall hand and forearm function.

A pain level of 0–4 out of 10 during exercise is acceptable. Increase the load gradually — typically every 1 to 2 weeks when pain stays low.

What about cortisone injections?

Corticosteroid injections into the lateral epicondyle reduce pain quickly, often within 1 to 2 weeks, and can be genuinely helpful for severe acute pain that is limiting daily function.

However, the research shows a consistent pattern: injections produce better short-term pain relief than physical therapy, but PT produces better outcomes at 6 to 12 months and beyond 2Ref 2Martin RL, Chimenti R, Cuddeford T, Houck J, Matheson JW, McDonough CM, Paulseth S, Wukich DK, Carcia CR (2018).Achilles Pain, Stiffness, and Muscle Power Deficits: Midportion Achilles Tendinopathy Revision 2018.APTA CPG supporting loading-based exercise as primary tendinopathy treatment and cautioning against repeated corticosteroid use. Repeated injections are associated with weakening of the tendon over time and are generally not recommended as a long-term strategy.

The practical approach: if pain is severely limiting function, a single injection can buy enough comfort to allow you to begin the loading exercise program. PT is then the vehicle for lasting recovery.

Manual therapy as a complement to exercise

Physical therapists often combine loading exercises with:

• Joint mobilization of the elbow or wrist — improving joint mechanics that may be contributing to tendon overload
• Soft-tissue techniques over the lateral epicondyle area
• Cervical spine assessment — nerve contributions from the neck can sometimes mimic or worsen lateral elbow pain, and addressing cervical mobility may improve outcomes

A PT will also analyze the tasks or sports activities that caused the problem and advise on equipment modifications — grip size for rackets, ergonomic adjustments for keyboard work — to reduce recurrence risk.

How long does recovery from tennis elbow take?

With a consistent exercise program, most people notice meaningful improvement within 6 to 12 weeks. Full recovery — including return to activities that were aggravating — typically takes 3 to 6 months for established tendinopathy.

Recovery is faster when: - The provoking activity is modified (not eliminated) during the loading program - Exercise is done consistently — 3 to 4 sessions per week - A clinician guides progression rather than relying on guess-and-check

Gale can help you connect with a physical therapist who manages tendinopathy and can teach you the correct exercise technique and loading schedule for your situation.