Small-finger MCP flexion isometric
Resisted isometric flexion at the fifth MCP (blocked)
Goal
Isometric fifth-ray loading supports pinch arcs that load the ulnar column.
Motion taxonomy (reference)
Also called: RIM · 5th MCP iso
Best for
- ADM / hypothenar recruitment
- Ulnar column stability
Default dose
6 reps • 2 sets • 5s hold • 2×/day
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
- Combine with finger abduction isometrics.
Regressions
- Imagery-only contraction.
Used in(2 guided demos)
Search the exercise library with this motion's clinical label for additional guided drills that may match your plan.
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.
~1 min if held as written
6 reps · 2 sets · 5s hold · 2×/day
None required — table or bodyweight only.
Phases 2, 3, 4
Generally lower load — still respect pain and swelling.
Avoid if this sounds like you
Hook of hamate non-union
Acute ulnar-sided wrist pain
Reread best-for context ↑Next 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.
Related movements
Similar mechanics, goals, or anatomy.
Guided exercises that use this
Step-by-step sessions that embed this movement pattern.
Keep momentum without overdoing it
Log a short check-in to protect your streak — even one quality set counts.