Expansion
Flexion, extension, abduction, adduction, medial rotation and lateral rotation
Expansion
- Flexion - iliopsoas, rectus femoris, sartorius
- Extension - gluteus maximus and the hamstrings
- Abduction - gluteus medius and minimus, tensor fasciae latae
- Adduction - the adductor group and gracilis
- Medial rotation - gluteus medius and minimus (anterior fibres)
- Lateral rotation - the deep lateral rotators (piriformis and friends)