Dart-thrower motion
Dart-thrower's motion (radial-extension to ulnar-flexion)
Goal
Engages the most functional and stable wrist arc — preferred over sagittal motion for return-to-task.
Motion taxonomy (reference)
Also called: functional wrist arc
Muscles — wrist flexors and extensors
Tendons — combined wrist tendon groups
Bones / joints — carpal bones, midcarpal joint, radiocarpal joint, radius, ulna
Indexed benefits: improves combined wrist motion · supports return to tasks · trains a functional wrist pathway
Common contexts: functional rehab · grip tasks · sport-specific return
Best for
- Functional wrist arc
- Tool & sport return
Default dose
10 reps • 2×/day
Equipment
Light pen or short tool
Avoid when
- Acute scapholunate or TFCC injury without clearance
Measurement targets
- Smoothness
- Tool tolerance (min)
Setup
- Hold a light object as if throwing a dart.
Steps
- 1Move the wrist diagonally from radial-extension to ulnar-flexion.
- 2Reverse smoothly.
Cues
- Imagine throwing a dart and pulling back.
Common mistakes
- Pure flex/ext instead of diagonal.
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
- Add a light tool weight.
Regressions
- Smaller arc; no weight.
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.
~2–5 min as a focused practice block
10 reps · 2×/day
Light pen or short tool
Phases 3, 4, 5
Higher load or coordination — scale range and speed.
Avoid if this sounds like you
Acute scapholunate or TFCC injury without clearance
Reread best-for context ↑Where this shows up clinically
- Wrist sprain or ligament irritation
- Ganglion cyst (wrist or hand)
- General stiffness after immobilization
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.
- Fingertips-to-floor wrist extensionstrength · moderate risk · complementary
- Towel wringingstrength · moderate risk · complementary
- Radial deviation isometric (table)strength · moderate risk · complementary
- Ulnar deviation isometric (table)strength · moderate risk · complementary
- Pronation isometric bracestrength · moderate risk · complementary
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.