Thumb CMC Osteoarthritis Exercises

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. 01
   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. Reach toward the base of the small finger only when comfortable.

   My starting dose or notes

2. 02
   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.

   My starting dose or notes

3. 03
   Exercise 3

   First dorsal interosseous index slide

   3 days per week

   Dose2 sets of 8 to 12 repetitions

   Place the hand flat on a table with the palm down. Keep the other fingers relaxed. Slide the index finger sideways away from the middle finger, then return slowly without hard pinching.

   Make it easier

   Use no resistance and a shorter slide.

   Progress it

   Add a very light elastic loop around the fingers.

   My starting dose or notes

4. 04
   Exercise 4

   Thumb palmar-abduction isometric

   3 days per week

   Dose5 holds of 5 to 10 seconds

   Hold the thumb in a relaxed C position in front of the palm. Place a finger from the opposite hand against the outside of the thumb. Gently press outward without allowing movement and keep the thumb knuckle from collapsing backward.

   Make it easier

   Perform three five-second holds.

   Progress it

   Build to 10-second holds, then use a light elastic loop. Do not use maximal effort.

   My starting dose or notes

5. 05
   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

   Use very soft therapy putty, a folded sponge, or a light clothespin. 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 practice the same alignment during a meaningful daily task.

   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.

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.