Instructions
Preparation
- Grasp open handles with both hands
Execution
- Rotate shaft by turning palm upward. Rotate shaft by turning palms downward. Repeat.
Comments
- This apperatus is of a very old design, found in a YMCA in New York City. Built into wall, this apperatus provides resistance by friction. Turning screw tighens or loosens shaft.
Classification
Utility: Auxiliary Mechanics: Isolated Force: Pull / Push
Muscles
- Forearm Supinators
- Forearm Pronators
- Biceps Brachii (during supination)