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Waterfall forearm stretch

Supported elbow extension with wrist flexion (waterfall)

MobilityWristForearmflexionextensionLow riskPhases 1, 2, 3, 4

Goal

Uses body weight for graded flexor–pronator stretch with easy dosing via lean.

Motion taxonomy (reference)

Also called: dynamic finger extension stretch

Structures:

Muscles — finger extensors, forearm stabilizers

Tendons — finger extensor tendons

Bones / joints — DIP joints, MCP joints, phalanges, PIP joints

Indexed benefits: helps reduce hand stiffness · improves finger opening · promotes blood flow

Common contexts: dynamic mobility · hand awakening · stiff fingers

Best for

  • Forearm flexor tightness
  • Post-cast gentle elongation

Default dose

Reps6
Frequency2× daily
Sets / time

6 reps • 12s hold • 2×/day

Equipment

Counter or sturdy table

Avoid when

  • Acute nerve irritability with sustained elbow extension

Measurement targets

  • Hold time
  • Symptom threshold distance

Setup

  • Stand facing a counter; place palms on the edge, fingers pointing down.

Steps

  1. 1Straighten the elbows gently.
  2. 2Let body weight bring wrists toward extension over the edge.
  3. 3Hold the stretch in the forearms.
  4. 4Step back to unload and rest.

Cues

  • Knees soft.
  • Stop if fingers tingle.

Common mistakes

  • Locking elbows hyperextended.

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 more weight shift if symptom-free.

Regressions

  • Higher surface so the wrist angle is milder.
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

6 reps · 12s hold · 2×/day

Equipment

Counter or sturdy table

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 nerve irritability with sustained elbow extension

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 — Higher surface so the wrist angle is milder. · Harder — Slightly more weight shift if symptom-free.Full cues ↑