What is the direction of the fiber / muscle contraction: ( LEFT,RIGHT, UP, OR DOWN )
- Supraspinatus, infraspinatus & teres minor (three of thefour rotator cuff muscles)
- Biceps brachii & pronator teres
- Triceps brachii
- Extensor digitorum, extensor carpi ulnarus & extensorretinaculum
- Gluteus maximus & gluteus medius
- Adductor longus
- Rectus femoris
- Hamstrings: biceps femoris, semitendinosus &semimembranosus
- Gastrocnemius
- Tibialis anterior
