muscle actions lower body

psoas major

flex hip joint

iliacus

flex hip joint

sartorius

flex, abduct, and lateral rotation of hip

medial rotation of knee

rectus femoris

flexing the hip and extending the knee

vastus medialis

extend the leg at the knee joint

vastus intermedius

extend the knee

vastus lateralis

extend the knee

tensor fasciae latae

flexion, abduction, and medial rotation of the hip

pectineus

adduct and flex the thigh at the hip joint

adductor longus

adduct the thigh

adductor magnus

hip adduction

gracilis

hip adduction and knee flexion

semimembranosus

knee flexion, hip extension, and medial rotation of the tibia when knee is flexed

semitendinosus

hip extension, knee flexion, and medial rotation of the tibia when knee is flexed

biceps femoris

knee flexion, lateral rotation of lower leg when knee is bent, and extension of thigh at hip

gluteus maximus

hip extension

gluteus medius

hip abduction and stabilization of pelvis

gluteus minimus

abduct and internally rotate the thigh at the hip joint, stabilization of pelvis

tibialis anterior

dorsiflexion, ankle inversion

extensor hallucis longus

extend big toe and dorsiflexion of ankle

extensor digitorum longus

extend toes 2-5 and dorsiflexion of ankle

fibularis longus

eversion of foot, plantarflexion

fibularis brevis

eversion of foot, plantarflexion

soleus

plantar flexion

gastrocnemius

plantarflexion of ankle and knee flexion

flexor digitorum longus

flexes toes 2-5, plantarflexion

tibialis posterior

inversion and plantar flexion

flexor hallucis longus

flex big toe and plantarflexion