Anatomy of Throwers
Performance Plus is very precise in the wording of human movement, so here are few diagrams that cover the basic movements of the arm and muscles involved with throwing!
Pronation and Supination
This is the movement of putting the palm up and down.
Planes of Movement
Flexion – decreasing the angle in the saggital plane
Extension- Increasing the angle in the saggital plane
Abduction – Moving away from the midline
Adduction – Moving towards the midline
Circumduction – Moving in a circular motion
Internal and External Rotation
Internal Rotation – Rotating in towards the midline
External Rotation – Rotating away from the midline