Passive thumb flexion
Assisted thumb flexion / opposition line stretch (gentle)
Goal
Passive flexion can restore opposition-line tolerance without demanding active thenar output.
Motion taxonomy (reference)
Also called: thumb into palm passive
Muscles — thenar muscles as passive lengthened tissues, thumb extensors
Tendons — thumb flexor and extensor tendon interfaces
Bones / joints — thumb CMC joint, thumb IP joint, thumb MCP joint
Indexed benefits: improves thumb flexion · reduces stiffness · supports opposition range
Common contexts: passive stretching · post-op recovery · thumb stiffness
Best for
- Thumb stiffness
- Post-op when passive motion is cleared
Default dose
6 reps • 15s hold • 2×/day
Avoid when
- Unstable CMC
- Healing thenar graft
Measurement targets
- Comfortable hold time
Setup
- Forearm supported; palm relaxed.
Steps
- 1Use the opposite hand to guide the thumb across the palm toward the small-finger side.
- 2Stop at the first strong stretch, not sharp pain.
- 3Hold, breathe, return slowly.
Cues
- Pressure is gentle and slow.
- Wrist stays neutral.
Common mistakes
- Twisting the thumb into painful end range.
Stop if you feel
Stop rules
- Sharp pain (≥ 4/10)
- Increasing swelling during or after
- New or worsening numbness or tingling
- Color change in fingers (pale, blue, red)
- Wound opens, drains, or feels hot
- Next morning is worse than the day before
Progressions
- Slightly longer holds if 24 h response is calm.
Regressions
- Smaller arc toward index only.
What to do next — not a dead end
Suggestions use body region, goal, motion type, and allowed phases — not your medical record. After surgery or a flare, follow your clinician first.
~2–5 min as a focused practice block
6 reps · 15s hold · 2×/day
None required — table or bodyweight only.
Phases 1, 2, 3, 4
Generally lower load — still respect pain and swelling.
Where this shows up clinically
How phases map to healingNext best movements
Later phase or richer progression when you are ready.
Prerequisite / gentler lane
Same region and intent — usually earlier phase or lower risk.
Commonly paired with
Different primary goal, same region — typical mixed sessions.
Keep momentum without overdoing it
Log a short check-in to protect your streak — even one quality set counts.