Tennis Elbow (Lateral Epicondylitis): Exercises and Treatment Guide

Tennis elbow (lateral epicondylitis) is one of the most common causes of elbow pain, and despite its name, most people who get it don't play tennis. It's a repetitive strain injury affecting the tendons on the outside of the elbow—and the right exercises are the most effective treatment.

Important: If you have significant symptoms, see a healthcare provider to confirm the diagnosis and rule out other conditions. This guide covers conservative exercise treatment.

Understanding Tennis Elbow

What Is It?

Tennis elbow affects the tendons that attach to the lateral epicondyle—the bony bump on the outside of your elbow. These tendons connect to muscles that extend (straighten) your wrist and fingers.

Older term: Lateral epicondylitis (-itis implies inflammation)

More accurate term: Lateral epicondylalgia or tendinopathy (usually degeneration, not active inflammation)

What Causes It?

Repetitive wrist and forearm movements, especially:

• Gripping while twisting (screwdriver use)
• Computer mouse and keyboard use
• Manual labor (plumbing, painting, carpentry)
• Racket sports (tennis, especially backhand)
• Weightlifting with poor form
• Gardening and yard work

The Cycle of Tendinopathy

1. Overuse creates micro-tears in the tendon
2. Poor healing leads to disorganized tissue
3. The tendon becomes weaker and more sensitive
4. Activity causes pain, leading to avoidance
5. Avoidance leads to further weakening

Breaking the cycle: Progressive loading strengthens the tendon without overwhelming it.

Exercise Principles for Tennis Elbow

Why Exercise Works

• Stimulates tendon remodeling
• Builds strength gradually
• Improves tissue quality
• Restores function

Key Concepts

Progressive loading: Gradually increase stress on the tendon over time.

Eccentric focus: The lengthening (lowering) phase of exercises is particularly beneficial for tendinopathy.

Consistency over intensity: Daily or near-daily practice beats occasional hard sessions.

Tolerable discomfort: Some pain is acceptable (up to 3-4/10), but it should settle within 24 hours.

Eccentric Exercises

Eccentric exercises emphasize the lowering phase and are the foundation of tennis elbow treatment.

Wrist Extensor Eccentric Exercise (Key Exercise)

This is the most important exercise for tennis elbow.

Setup:

• Sit with forearm supported on table or armrest
• Wrist and hand hanging over the edge, palm facing down
• Hold a light dumbbell (1-3 lbs to start) or water bottle

The Exercise:

1. Use your other hand to lift the weight into a wrist-up (extended) position
2. Remove the helper hand
3. Slowly lower the weight over 3-5 seconds (the eccentric phase)
4. Return to the top position using the other hand
5. Repeat 10-15 times, 3 sets, twice daily

Progression:

• Start with very light weight or no weight
• Increase weight only when you can do all sets with less than 3/10 pain
• Gradually add weight over weeks (not days)

Key point: The "work" happens on the slow lowering phase. Use the other hand to lift—don't do the concentric phase with the affected arm initially.

Tyler Twist (FlexBar Exercise)

If you have access to a TheraBand FlexBar (or similar flexible rubber bar), this exercise has excellent research support.

Setup:

• Hold the FlexBar vertically
• Affected arm grabs the top, wrist bent back (extended)
• Other arm grabs the bottom

The Exercise:

1. Twist the bar with the bottom (unaffected) hand
2. While maintaining the twist, bring both arms in front of you horizontally
3. Slowly release the twist by letting the top (affected) wrist bend forward
4. The affected arm resists the bar as it untwists
5. 10-15 reps, 3 sets, once daily

Why it works: This creates an eccentric load on the wrist extensors in a functional way.

Pronation/Supination Eccentric Exercise

1. Sit with elbow bent 90°, forearm supported
2. Hold a hammer or weighted bar at the end (creates a lever)
3. Rotate forearm slowly palm-down (pronation) over 3-5 seconds
4. Use other hand to rotate back to neutral
5. Then rotate palm-up (supination) slowly, 3-5 seconds
6. 10-15 reps each direction, 2-3 sets

Stretching Exercises

Wrist Extensor Stretch

1. Extend your affected arm in front of you
2. Use your other hand to bend your wrist down (palm toward floor)
3. Keep your elbow straight
4. Feel stretch on outside of forearm
5. Hold 30 seconds, repeat 3-5 times
6. Several times daily

Wrist Flexor Stretch

Good for overall forearm balance:

1. Extend arm in front, palm facing up
2. Use other hand to bend wrist back (fingers toward floor)
3. Keep elbow straight
4. Hold 30 seconds, repeat 3-5 times

Grip Strengthening

Wait until pain is improving before adding grip work (typically 3-4 weeks into eccentric program).

Ball Squeeze

1. Hold a stress ball or tennis ball
2. Squeeze gently, hold 5 seconds
3. Release slowly
4. 3 sets of 10-15 repetitions

Towel Wring

1. Hold a towel with both hands
2. Wring it out in both directions
3. 10-15 twists each direction

Finger Spread with Band

1. Put a rubber band around all fingers
2. Spread fingers apart against resistance
3. 3 sets of 15-20 repetitions

Sample Treatment Program

Weeks 1-2: Reduce Pain, Begin Loading

Do daily:

• Wrist extensor stretch: 30 seconds × 5, several times daily
• Ice after activities that aggravate: 15-20 minutes
• Eccentric wrist extension: 3×15 with very light or no weight
• Modify aggravating activities as much as possible

Weeks 3-6: Progressive Loading

Do daily:

• Wrist extensor stretch: 30 seconds × 5
• Eccentric wrist extension: 3×15, gradually increasing weight
• Tyler Twist (if you have FlexBar): 3×15 daily
• Pronation/supination eccentrics: 2×15 each direction

Begin to gradually resume normal activities as tolerated.

Weeks 7-12+: Strengthening and Return to Activity

Continue:

• Eccentric exercises 3-4 times per week
• Add grip strengthening
• Progressive return to sport/work activities
• Stretching as needed

Begin adding:

• Resistance band wrist curls (both directions)
• Forearm pronation/supination with resistance
• Sport-specific exercises if applicable

Additional Treatment Strategies

Modify Aggravating Activities

Don't stop using your arm—but modify how you use it:

At work:

• Ergonomic mouse and keyboard
• Reduce grip force when typing
• Take frequent breaks
• Use both hands when possible

In sports:

• Check equipment (racket grip size, string tension)
• Consider technique coaching
• Reduce intensity temporarily
• Warm up thoroughly

At home:

• Use power tools when possible
• Split demanding tasks over multiple days
• Change grip frequently

Counterforce Brace (Tennis Elbow Strap)

A strap worn just below the elbow can help by:

• Dispersing force away from the injured tendon
• Changing the muscle attachment point slightly

Use it: During aggravating activities, not all day.

It's not a cure: Use alongside exercise, not instead of it.

Ice vs. Heat

Ice: After activities that aggravate—15-20 minutes, not directly on skin.

Heat: Before exercise or first thing in the morning to reduce stiffness.

NSAIDs and Pain Relief

Anti-inflammatories may help with pain but don't address the underlying issue (which usually isn't active inflammation). Short-term use is reasonable, but exercise is the primary treatment.

When Progress Stalls

Signs You May Need Additional Help

• No improvement after 6-8 weeks of consistent exercise
• Symptoms worsening despite modification
• Significant weakness developing
• Night pain that disturbs sleep

Other Treatment Options

Physical therapy: Hands-on techniques, dry needling, more structured progression.

Cortisone injection: May help short-term but potentially delays healing. Usually reserved for severe cases.

PRP (Platelet-Rich Plasma): Emerging treatment, mixed evidence.

Shockwave therapy: May help chronic cases.

Surgery: Rarely needed, reserved for cases that fail 6-12 months of conservative treatment.

Returning to Activities

General Guidelines

• Pain should be less than 3/10 during activity
• No increased pain the next day
• Gradually increase intensity and duration
• Maintain exercise program

Sport-Specific (Tennis/Racket Sports)

• Start with gentle rallies, no serving
• Gradually add serves and overhead
• Progress to match play over weeks
• Continue maintenance exercises

Work-Specific

• Start with shorter periods
• Take breaks
• Use counterforce brace if helpful
• Gradually increase duration

Prevention (After Recovery)

Continue Exercises

• Eccentric exercises 2-3 times per week
• Stretching after forearm-intensive activities
• Grip strengthening maintenance

Ergonomics

• Proper workstation setup
• Tool selection (right size, power when possible)
• Technique correction in sports

Load Management

• Gradual increases in activity
• Avoid sudden spikes in repetitive work
• Cross-train in sports

Timeline Expectations

Most people improve significantly within 6-12 weeks of consistent exercise.

Complete resolution may take 6-12 months or longer for some.

Recurrence is possible—maintenance exercise helps prevent it.

The Bottom Line

Tennis elbow responds best to progressive loading through eccentric exercises. The key is consistency: daily exercise, tolerable discomfort levels, and gradual progression over weeks and months.

The eccentric wrist extension exercise is the foundation. Do it correctly, do it daily, and increase the load gradually as your symptoms allow.

Be patient—tendon healing takes time, but most people recover fully with conservative treatment. Surgery is rarely needed.

Key takeaway: Exercise is the treatment. Braces, ice, and rest help manage symptoms, but eccentric loading heals the tendon.