ROM of hip

Extension ROM

0-20

extension muscles

gluteus maximus, gluteus medius, abductor magus, semitendinosus, semimembranosus, long head of biceps femoris

extension compensation

pelvis rotation

flexion ROM

0-120

flexion muscles

psoas major, iliacus, sartorius, rectus femoris, pectineus, adductor longus, adductor mangus, gluteus medius, gluteus minimus

flexion compensation

pelvic tilt influences hip flexors

abduction ROM

0-45

abduction muscle

sartorius, gluteus maximus, gluteus medius, gluteus minimus, piriformis

abduction compensation

lateral pelvic tilt to use trunk, ER, F

adduction ROM

0-15-20deg

adduction muscles

adductor magus, adductor longus, adductor brevis, pectineus, gracilis

adduction compensation

hip flexors, IR 

IR ROM

0-40

IR muscles

gluteus minimus, tensor fascia lata, gluteus medius  

IR compensation

kn ext/flex, hip add and ext, lat pelvic tilt

ER ROM

0-35

ER muscles

Obturator externus and internus, quadratus femoris, piriformis, gemellus

ER compensation

pelvic tilt, flexing knee, and abducting hip