Humeroulnar joint Flexion: 150° Extension (hyperextension): 0°
Radioulnar Joint Supination: 80° from neutral position Pronation: 80° from neutral position From Anatomical: 0° supination, 180° pronation | Flexion - movement of the forearm toward the shoulder (anterior movement in the sagittal plane).
Extension - movement of the forearm away from the shoulder (posterior movement in the sagittal plane).
Supination - external rotary movement of the radius on the ulna that results in the hand moving from the palm-down to the palm-up position.
Pronation - internal rotary movement of the radius on the ulna that results in the hand moving from the palm-up to the palm-down position. |