Thumb-base arthritis ยท Home exercise and orthosis guide

Thumb CMC Osteoarthritis Exercises

Thumb carpometacarpal osteoarthritis affects the joint at the base of the thumb. A well-fitting thumb orthosis, practical changes to painful gripping and pinching, and progressive hand exercise can help function. Exercise benefits are usually modest, and no program can reverse the arthritis or rebuild cartilage.

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Clinically reviewed August 28, 2026

Written and clinically reviewed by Jeremy Swisher, MD

Board-certified primary care sports medicine physician. Reviewed August 28, 2026.

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Jeremy Swisher, MD

Evidence-informed home exercise program

Thumb CMC Osteoarthritis Home Exercise Program

Name: __________________________________

Affected side: ______________

Start date: __________________

Review date: _________________

Clinician or PT: ______________________________

Before you start

This program is for adults who have been evaluated and told that thumb CMC osteoarthritis is the likely source of their symptoms. It is not a self-diagnosis tool or a postoperative protocol.

This program may fit

Pain at the base of the thumb during opening jars, turning keys, writing, pinching, gripping, carrying, or prolonged phone use, sometimes with stiffness or reduced pinch strength.

Get assessed first

An uncertain diagnosis, symptoms after a fall or collision, a thumb that catches, locks, dislocates, or repeatedly gives way, numbness, tingling, progressive weakness, pain mainly along the thumb side of the wrist rather than at the thumb base, several persistently swollen joints, prolonged morning stiffness, recent hand surgery, injection, or fracture, or severe unexplained rest or night pain.

Stop signs

Call 911 for chest pain, trouble breathing, fainting, or another medical emergency. Seek same-day care for a rapidly worsening hot, red, or markedly swollen joint, fever, a wound near the joint, new deformity after trauma, or inability to use the hand after injury. Remove a brace immediately if it causes numbness or color change. Seek emergency care now if the hand or fingers remain cold, pale, or blue, or if you develop sudden severe pain or a new inability to move the fingers. Contact a clinician now for same-day assessment of numbness or weakness that persists after removing the brace. Do not use the brace again until its fit and symptoms have been assessed.

Check the next morning

Begin with one set when the thumb is irritable. Mild discomfort can be acceptable when movement remains controlled and symptoms return to their usual baseline by the next morning.

Fit and safety

Confirm this is the right diagnosis.

This program is for adults who have been evaluated and told that thumb CMC osteoarthritis is the likely source of their symptoms. It is not a self-diagnosis tool or a postoperative protocol.

This program may fit

Pain at the base of the thumb during opening jars, turning keys, writing, pinching, gripping, carrying, or prolonged phone use, sometimes with stiffness or reduced pinch strength.

Get assessed first

An uncertain diagnosis, symptoms after a fall or collision, a thumb that catches, locks, dislocates, or repeatedly gives way, numbness, tingling, progressive weakness, pain mainly along the thumb side of the wrist rather than at the thumb base, several persistently swollen joints, prolonged morning stiffness, recent hand surgery, injection, or fracture, or severe unexplained rest or night pain.

Do not self-start with these warning signs

Call 911 for chest pain, trouble breathing, fainting, or another medical emergency. Seek same-day care for a rapidly worsening hot, red, or markedly swollen joint, fever, a wound near the joint, new deformity after trauma, or inability to use the hand after injury. Remove a brace immediately if it causes numbness or color change. Seek emergency care now if the hand or fingers remain cold, pale, or blue, or if you develop sudden severe pain or a new inability to move the fingers. Contact a clinician now for same-day assessment of numbness or weakness that persists after removing the brace. Do not use the brace again until its fit and symptoms have been assessed.

This is a diagnosis-specific home program, not a substitute for an examination. A clinician may change the exercise, dose, range, or timeline based on your history.

Your home program

Support the joint. Train the hand. Protect function.

First-CMC orthoses are strongly recommended in the American College of Rheumatology guideline. Exercise evidence is more mixed and benefits are generally modest, so this plan combines comfortable movement and low-load strength with joint protection and an optional orthosis rather than presenting exercise as a cure.

Frequency
Mobility most days; strengthening 2 to 3 days per week
Equipment
Table, optional light elastic loop, soft sponge or putty, and a well-fitting thumb CMC orthosis if helpful
First checkpoint
Review function and symptoms after 6 to 8 weeks
Primary goal
Easier gripping, pinching, writing, opening, carrying, and daily hand use
  1. Exercise 1

    Rounded thumb opposition

    Daily

    Dose1 to 2 sets of 5 to 10 repetitions

    Support the forearm and keep the wrist straight. Bring the thumb pad toward the index fingertip to form a relaxed letter C. Keep the thumb joints softly bent and avoid squeezing. Hold for two to three seconds, then relax.

    Make it easier

    Move only toward the index finger through a smaller range.

    Progress it

    Touch each fingertip in sequence without squeezing. Reach toward the base of the small finger only when comfortable and symptoms return to the usual baseline by the next morning.

    My starting dose or notes

  2. Exercise 2

    Gentle first web-space opening

    Daily

    Dose2 holds of 20 to 30 seconds

    Support the affected hand with the palm facing up. Use the other hand to gently guide the thumb away from the palm until a mild stretch is felt in the web space. Do not force the base joint or push into sharp pain.

    Make it easier

    Use a smaller range and a 10-second hold.

    Progress it

    Progress toward a 30-second hold without increasing the force. Keep a mild web-space stretch rather than pushing the thumb base into pain.

    My starting dose or notes

  3. Exercise 3

    First dorsal interosseous index slide

    3 days per week

    Dose2 sets of 8 to 12 repetitions

    Place the hand palm down on a table and keep the other fingers relaxed. Slide the index finger sideways away from the middle finger, then return slowly. Keep the hand supported and avoid hard pinching or twisting at the thumb base.

    Make it easier

    Use no resistance and a shorter slide.

    Progress it

    Add a very light elastic loop around the fingers while keeping the same controlled index-finger slide. Reduce resistance if aching or swelling increases or symptoms stay worse the following morning.

    My starting dose or notes

  4. Exercise 4

    Thumb palmar-abduction isometric

    3 days per week

    Dose5 holds of 5 to 10 seconds

    Hold the hand with the palm facing sideways and the thumb softly bent. Move the thumb a little away from the palm, as if opening a space to hold a small cup; the thumb moves perpendicular to the plane of the palm. Place a finger of the other hand against the thumb to resist that same direction. Press gently without movement and keep the thumb knuckle from bending backward.

    Make it easier

    Perform three five-second holds.

    Progress it

    Build to 10-second holds, then use a light elastic loop while keeping the thumb knuckle from bending backward. Do not use maximal effort; step back if aching or swelling increases or symptoms remain worse the following morning.

    My starting dose or notes

  5. Exercise 5

    Controlled three-point pinch

    2 to 3 days per week, beginning in Stage 3

    Dose1 to 2 sets of 6 to 10 repetitions

    Begin this in Stage 3 after comfortable movement and light stabilization work are tolerated. Use very soft therapy putty, a folded sponge, or a light clothespin, and pinch between the thumb pad and the pads of the index and middle fingers. Maintain a rounded C shape and avoid a forceful side or key pinch.

    Make it easier

    Practice the position without resistance.

    Progress it

    Increase resistance slightly or use the same rounded alignment during a meaningful daily task. Keep the pinch light and controlled, and reduce it if aching or swelling increases or symptoms remain worse the following morning.

    My starting dose or notes

Symptom response

Let the next day guide the dose.

Begin with one set when the thumb is irritable. Mild discomfort can be acceptable when movement remains controlled and symptoms return to their usual baseline by the next morning.

Continue

Green light

Mild discomfort up to about 3 out of 10, controlled movement, and symptoms return to their usual baseline by the next morning.

Adjust

Yellow light

Pain is sharper, technique changes, aching or swelling is meaningfully worse later in the day, or symptoms remain worse the following morning. Reduce resistance, range, repetitions, or pinch practice.

Stop

Red light

Call 911 for chest pain, trouble breathing, fainting, or another medical emergency. Stop. Seek same-day care for a rapidly worsening hot, red, or markedly swollen joint, fever, a wound near the joint, new deformity after trauma, or inability to use the hand after injury. Remove a brace immediately if it causes numbness or color change. Seek emergency care now if the hand or fingers remain cold, pale, or blue, or if you develop sudden severe pain or a new inability to move the fingers. Contact a clinician now for same-day assessment of numbness or weakness that persists after removing the brace. Do not use the brace again until its fit and symptoms have been assessed. Seek same-day assessment for new numbness or sudden weakness that persists, even if you have not been wearing a brace.

Change one variable at a time

When symptoms are too reactive, first reduce range, resistance, repetitions, or frequency. When the current dose feels controlled for several sessions, progress only one of those variables.

Progression

Build capacity in stages.

  1. Stage 1: protect and move

    Use joint-protection strategies and a comfortable orthosis during aggravating tasks when helpful. Perform rounded opposition and gentle web-space opening.

  2. Stage 2: build control

    Add first dorsal interosseous work and light palmar-abduction isometrics. Reach the upper repetition range before adding resistance.

  3. Stage 3: restore useful pinch

    Add controlled three-point pinch and progressively practice buttons, utensils, writing, keys, food preparation, or another relevant task.

  4. Stage 4: maintain capacity

    Continue useful strength exercises twice weekly. Use the orthosis and adaptive equipment selectively rather than assuming they must be worn for every activity.

Signs you are ready for the next stage

  • Resting symptoms are stable.
  • Rounded opposition does not produce sharp pain.
  • The current dose has been tolerated for several sessions.
  • Symptoms return to baseline by the following morning.
  • The thumb maintains a rounded position without the knuckle collapsing backward.
  • Daily tasks are becoming easier or can be performed for longer.

When to schedule an evaluation

Schedule a hand or sports medicine evaluation if symptoms worsen, the orthosis causes pressure or numbness, function has not improved after six to eight weeks, deformity or instability is progressing, or the diagnosis remains uncertain.

Call UCLA Orthopedics at 310-319-1234

Use this tracker through the first checkpoint above. Mark up to three key sessions each week, check weekdays for frequent work, and note symptoms, resistance, duration, or activity gains. Continue through a longer condition-specific trial when useful.

WeekKey sessionsDaily or most-day workNotes
123
1MTWTFSS
2MTWTFSS
3MTWTFSS
4MTWTFSS
5MTWTFSS
6MTWTFSS

Questions? Call UCLA Orthopedics at 310-319-1234.

Full guide and references: https://jeremyswishermd.com/thumb-cmc-osteoarthritis-exercises/

Clinical review: August 28, 2026. Independent professional site; not an official UCLA Health website. UCLA Health manages appointments and clinical communication.

General education only, not individualized medical advice. For a medical emergency, call 911.

Common questions

Questions about this program

Will these exercises reverse the arthritis?

No. Exercise does not regrow cartilage or remove arthritic changes. The goals are improved strength, movement control, function, and confidence.

What type of brace is best?

No single orthosis is clearly superior for every patient. A rigid CMC support may provide more stability, while neoprene may be more comfortable. Fit and usefulness during painful tasks matter more than a particular brand.

How should I use a thumb CMC brace?

A practical trial is to wear a comfortable, well-fitting orthosis during painful gripping or pinching and, if helpful, at night. Remove it immediately if it causes numbness, color change, skin injury, or increased pain. Seek emergency care now if the hand or fingers remain cold, pale, or blue, or if you develop sudden severe pain or a new inability to move the fingers. Contact a clinician now for same-day assessment of numbness or weakness that persists after removing the brace. Do not use the brace again until its fit and symptoms have been assessed. Research has not established one universal wearing schedule.

Should I squeeze a ball?

Hard repetitive squeezing can aggravate the thumb base. Begin with the low-load exercises in this program and add soft, controlled pinch only after symptoms are stable.

How can I protect the joint during daily tasks?

Use larger handles and jar-opening aids, use the whole hand instead of forceful key pinch, carry with two hands, slide objects when possible, keep the wrist relatively neutral, and break prolonged gripping into shorter periods.

When would a hand therapist help?

A hand therapist can fit or fabricate an orthosis, distinguish thumb CMC pain from nearby tendon or nerve problems, and adapt the program for deformity, instability, work, music, sport, or high-demand hand use.

Evidence

Guidelines, reviews, and clinical studies

This plan translates current clinical guidance into a practical home program. The cited sources support the treatment principles, but they do not establish one universal exercise recipe for every patient.

Evidence and recommendations can change. Last clinical review: August 28, 2026.

Related care

Different thumb-side painDe Quervain starter program Open guide Whole-person arthritis careOsteoarthritis treatment overview Open guide All programsHome exercise library Open guide

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