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Hammer Pronation Supination

IntermediateStrengthTier T2
Hammer Pronation Supination

Rotate forearm slowly while holding a hammer or weighted object. The offset weight provides resistance for rotation muscles.

Targets: Elbow
Muscles: Pronators, Supinators

Stop if

Choose an easier exercise if pain reaches 6 out of 10 or becomes sharp. Stop and rest if pain reaches 8 out of 10.

This is the general ClapMove rule. This exercise has no extra stop rule of its own.

  • Pain 6 out of 10 or more: choose an easier exercise.
  • Pain 8 out of 10 or more: stop and rest.

Equipment needed

  • Works at home
  • Works at the gym

dumbbells

No equipment? Try: Tennis racket, Weighted stick

Dosage

3

Sets

10

Reps / Time

60 sec

Rest

3 sec each direction

Tempo

Step-by-Step Guide

Set up

  • Hold a hammer at the end of the handle
  • Elbow bent at 90 degrees at your side
  • Forearm parallel to floor
  • Start with palm facing sideways
  1. Hammer Pronation Supination - Step 1 of 5: Slowly rotate forearm to turn palm down

    Step 1 of 5

    Slowly rotate forearm to turn palm down

  2. Hammer Pronation Supination - Step 2 of 5: Take 3 seconds for the rotation

    Step 2 of 5

    Take 3 seconds for the rotation

  3. Hammer Pronation Supination - Step 3 of 5: Pause briefly

    Step 3 of 5

    Pause briefly

  4. Hammer Pronation Supination - Step 4 of 5: Rotate back to palm up taking 3 seconds

    Step 4 of 5

    Rotate back to palm up taking 3 seconds

  5. Hammer Pronation Supination - Step 5 of 5: Keep elbow fixed at side

    Step 5 of 5

    Keep elbow fixed at side

Breathing

  • Breathe normally
  • Stay relaxed

Form Cues

  • Move slowly and controlled
  • Keep elbow still
  • Only forearm rotates
  • Full range of rotation

Common Mistakes to Avoid

  • Moving too fast
  • Elbow drifting away from side
  • Shoulder compensating
  • Incomplete rotation

Safety Information

Avoid if sharp pain or UCL injury in early phase. Good for forearm conditioning.

Progressions

Hold lower on handle or use heavier object

Regressions

Hold hammer higher on handle (less resistance)