FLEXION: 140 - 150°

- Triceps brachii

EXTENSION: 0 - 10°

- Biceps Brachii

- Brachialis

- Brachioradialis 

PRONATION: 80 - 90°

- Biceps brachii

- Supinator

SUPINATION: 90°

- Pronator teres

- Pronator quadratus