Hip, Thigh and Leg MusclesVictoria Lund

Types of MovementPelvis and Thigh:

AnteriorThe Hip:Posterior

The Hamstrings The QuadricepsThe Quadriceps The Leg

Flexion◦ Satorius, Iliopsoas, Rectus Femoris, Hamstring Muscles

Extension◦ Gluteus Maximus, Quadriceps, Hamstring Muscles

Adduction◦ Adductor Muscles, Gluteus Medius,

Dorsiflexion◦ Tibialis anterior, extensor digitorum longus,

Plantar Flexion◦ Fibularis Muscles, Soleus, Gastronemius

Types of Movement

The Hip (Posterior)

Name Origin Insertion Primary Action

Gluteus Medius Ilium Proximal Femur Abducts thigh and stedies pelvis when walking

Gluteus Maxmus Sacrum and Ilium Proximal Femur Extends hip (so it is straight with the pelvis)

Pelvis/Thigh (Anterior)Muscle Origin Insertion Primary

Action

Iliopsoas Ilium and lumbar vertebra

Femur (lesser trochanter)

Flexes hip

Sartorius Ilium Proximal Tibia

Flexes thigh on hip

Adductor Muscles

Pelvis Proximal Femur

Adduct Thigh

Hamstring Muscles

Name Origin Insertion Primary Action

Semitendinosus Ischial Tuberosity Proximal Tibia Flexes knee and Extends hip

Semimembranosus Ischial Tuberosity Proximal Tibia Flexes knee and Extends hip

Biceps Femoris Ischial Tuberosity Proximal Tibia Flexes knee and Extends hip

The Hamstring muscles make up much of the posterior thigh, as well as the adductor muscles.

Quadriceps GroupAnterior Thigh

Name Origin Insertion Primary Action

Vastus Medialis Femur Tibial Tuberosity via patellar ligament

Extend knee

Vastus lateralis Femur Tibial Tuberosity via patellar ligament

Extend knee

Rectus Femoris Pelvis Tibial Tuberosity via patellar ligament

Extend knee and flexes hip on thigh

LegName Origin Insertion Primary ActionGastroncnemius Distal Femur Calcaneus Plantar flexes foot and

flexes knee

Soleus Proximal tibia and fibula Calcaneus Plantar flexes foot

Tibialis Anterior Proximal tibia First cineform and first metatarsal

Dorsiflexes and inverts foot

Extensor digitorum Longus

Proximal tibia and radius Distal toes (2-5) Extends toes and dorsiflexes foot

Fibularis Muscles Fibula Metatarsals of foot Plantar flex and evert foot