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Movement library
MobilityThumbPhases 1, 2, 3, 4

Radial abduction

Thumb radial abduction (in plane of palm)

Preserves radial side mobility for key pinch.

Best for

  • Thumb mobility
  • Side pinch preparation

Default dose

10 reps • 2×/day

Avoid when

  • Acute CMC flare

Measurement targets

  • Radial abduction angle (degrees)

Setup

  • Palm flat on a table.

Steps

  1. 1Slide the thumb sideways away from the index finger along the table.
  2. 2Return.

Cues

  • Stay in the plane of the palm.

Common mistakes

  • Lifting the thumb up off the table.

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

  • Add brief hold at end range.

Regressions

  • Smaller arc.
Continue your rehab

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.

Estimated time

~2–5 min as a focused practice block

10 reps · 2×/day

Equipment

None required — table or bodyweight only.

Rehab stage

Phases 1, 2, 3, 4

Generally lower load — still respect pain and swelling.

When to stop

Sharp pain (≥ 4/10)

Increasing swelling during or after

Full stop rules ↑

Avoid if this sounds like you

Acute CMC flare

Reread best-for context ↑

Keep momentum without overdoing it

Log a short check-in to protect your streak — even one quality set counts.

Scaling in plain language: Easier — Smaller arc. · Harder — Add brief hold at end range.Full cues ↑