muscle actions

Psoas major muscle

Flexion of the thigh at the hip joint.

Iliacus muscle

Flexion of the thigh at the hip joint.

Sartorius muscle (hip)

Flexion and lateral rotation of the thigh at the hip joint.

Rectus femoris muscle

Flexion of the thigh at the hip joint.

Gracilis muscle (hip)

Adduction and flexion of the thigh at the hip joint.

Pectineus muscle

Adduction and flexion of the thigh at the hip joint.

Tensor fasciae latae muscle

Abduction and medial rotation of the thigh at the hip joint.

Gluteus maximus muscle

Extension and lateral rotation of the thigh at the hip joint.

Gluteus medius muscle

Abduction and medial rotation of the thigh at the hip joint.

Gluteus minimus muscle

Abduction and medial rotation of the thigh at the hip joint.

Piriformis muscle

Lateral rotation of the thigh at the hip joint.

Biceps femoris muscle (hip)

Extension of the thigh at the hip joint.

Semitendinosus muscle (hip)

Extension of the thigh at the hip joint.

Semimembranosus muscle (hip)

Extension of the thigh at the hip joint.

Vastus medialis muscle

Extension of the leg at the knee joint.

Vastus lateralis muscle

Extension of the leg at the knee joint.

Vastus intermedius muscle

Extension of the leg at the knee joint.

Sartorius muscle (leg)

Flexion of the leg at the knee joint.

Sartorius muscle (knee rotation)

Medial rotation of the leg when flexed at the knee joint.

Gracilis muscle (knee)

Flexion of the leg at the knee joint.

Biceps femoris muscle

Flexion of the leg at the knee joint.

Biceps femoris muscle (knee rotation)

Lateral rotation of the leg when flexed at the knee joint.