1. 3 Gluteal Muscles Gluteus Maximus O – illium, sacrum & coccyx
A – extension & external rotation of femur

2. Gluteus Maximus – Insertions
outer femur (below greater trochanter)
Ilio Tibial Band (ITB)

3. Gluteus Medius Origin – posterior illium
Insertion – tip greater trochanter
Action – abduction
Medial rotation of hip
Stabilize the pelvis

4. Gluteus Minimus Origin – posterior illium
Insertion – tip greater trochanter
Action – abduction
Medial rotation of hip
Stabilize the pelvis
Pictured as seen through Glute Medius

5. Hamstrings Group Biceps Femoris Semitendinosus Semimembranosis
Origin – Ischial Tuberosity (sit bone)
Insertion – tibia & fibula
Action – hip extension + knee flexion

7. Hamstrings Group
Biceps Femoris
Semitendinosus
Semimembranosis

8. Adductors Adductor Magnus Pectineus Adductor Longus Adductor Brevis
Gracilis
Origin – Ischial Tuberosity (sit bone)
Insertion – Medial Femur
Action – Adduction of the femur
Some may act as Hamstrings also

10. Adductor Magnus Origin – Ischial Tuberosity Insertion – medial femur
Action – adduction of femur

11. Gastrocnemius O – condyles of femur
I – calcaneus via the Achilles tendon
A - plantar flexion of the ankle OR assists knee flexion

13. Tibialis Anterior O – Anterior Tibia I – Base of 1st Metatarsal
A - dorsi flexion of the ankle & inversion of foot

14. Quadriceps Group Rectus Femoris Vastus medialis Vastus intermedius
Vastus lateralis
O – Anterior Superior Illiac Spine (ASIS)
O – Femur
I – Tibia via Patellar Tendon
A – knee extension
Rectus Femoris also acts as a hip extensor

16. iliopsoas Iliacus O – illium Psoas O – T12 – L4 I – lessor trochanter
A – flexion & abduction & lateral rotation of hip + spinal movements
psoas
iliacus
iliopsoas

17. Sciatic Nerve
Posterior View

18. The result of tight hamstrings & adductors