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LE Muscles
Muscles of the Hip, Knee, Ankle, & Foot
| Muscle | Action | Nerve Supply | Spinal Segment |
|---|---|---|---|
| Adductor Brevis | Hip flexion/adduction/internal rotation | Obturator | L2-L5 |
| Adductor Longus | Hip flexion/adduction/internal rotation | Obturator | L2-L5 |
| Adductor Magnus | Hip adduction/internal rotation | Obturator/Sciatic | L2-L4 |
| Biceps Femoris | Hip extension/external rotation | Sciatic | L2-L4 |
| Dorsal Interossei | Toe abduction/flexion | Tibial (lateral plantar branch) | L5-S2 |
| Extensor Digitorum Brevis | Toe extension | Deep fibular | S2-S3 |
| Extensor Digitorum Longus | Dorsiflexion/eversion/toe extension | Deep fibular | S1-S2 |
| Extensor Hallucis Longus | Dorsiflexion/inversion/toe extension | Deep fibular | L5-S1 |
| Flexor Digiti Minimi Brevis | Toe flexion | Tibial (medial plantar branch) | L5-S1 |
| Flexor Digitorum Brevis | Toe flexion | Tibial (medial plantar branch) | S2-S3 |
| Flexor Digitorum Longus | Plantar flexion/inversion/toe flexion | Tibial | S2-S3 |
| Flexor Hallucis Brevis | Toe flexion | Tibial (medial plantar branch) | S2-S3 |
| Flexor Hallucis Longus | Plantar flexion/inversion/toe flexion | Tibial | S2-S3 |
| Gastrocnemius | Plantar flexion/knee flexion | Tibial | S1-S2 |
| Gemellus Inferior | Hip external rotation | Nerve to obturator internus | L5-S1 |
| Gemellus Superior | Hip external rotation | Nerve to quadrtaus femoris | L5-S1 |
| Gluteus Maximus | Hip extension/abduction/external rotation | Inferior gluteal | L5-S2 |
| Gluteus Medius | Hip abduction/internal rotation | Superior gluteal | L5-S1 |
| Gluteus Minimus | Hip abduction/internal rotation | Superior gluteal | L5-S1 |
| Gracilis | Hip adduction/flexion/internal rotation | Obturator | L2-L3 |
| Iliacus | Hip flexion | Femoral | L2-L3 |
| Lumbricals | MTP toe flexion/IP toe extension | Tibial | S2-S3 |
| Obturator Externus | Hip external rotation | Obturator | L3-L4 |
| Obturator Internus | Hip external rotation | Nerve to obturator internus | L5-S1 |
| Pectineus | Hip flexion/adduction/internal rotation | Femoral | L2-L3 |
| Fibularis Brevis | Plantar flexion/eversion | Superficial fibular | L5-S2 |
| Fibularis Longus | Plantar flexion/eversion | Superficial fibular | L5-S2 |
| Fibularis Tertius | Dorsiflexion/eversion | Deep fibular | L5-S1 |
| Piriformis | Hip external rotation | Anterior rami of S1, S2 | L5-S2 |
| Plantar Interossei | Toe adduction/flexion | Tibial (lateral plantar branch) | S2-S3 |
| Plantaris | Plantar flexion/ knee flexion | Tibial | S1-S2 |
| Popliteus | Knee flexion | Tibial | L4-S1 |
| Psoas | Hip flexion | Anterior rami of lumbar nerves | L1-L3 |
| Quadratus Femoris | Hip external rotation | Nerve to quadratus femoris | L5-S1 |
| Rectus Femoris | Hip flexion/knee extension | Femoral | L2-L4 |
| Sartorius | Hip flexion/abduction/external rotation | Femoral | L2-L3 |
| Semimembranosus | Hip extension/internal rotation | Sciatic | L5-S2 |
| Semitendinosus | Hip extension/internal rotation | Sciatic | L5-S2 |
| Soleus | Plantar flexion | Tibial | S1-S2 |
| Tensor Fascia Latae | Hip abduction/internal rotation; In 0-30 degrees of knee flexion also does knee extension; In 45-145 degrees of knee flexion also does knee flexion | Superior gluteal | L4-L5 |
| Tibialis Anterior | Dorsiflexion/inversion | Deep fibular | L4-L5 |
| Tibialis Posterior | Plantar flexion/inversion | Tibial | L4-L5 |
| Vastus Intermedius | Knee extension | Femoral | L2-L4 |
| Vastus Lateralis | Knee extension | Femoral | L2-L4 |
| Vastus Medialis | Knee extension | Femoral | L2-L4 |
| Abductor Digiti Minimi | Toe abduction | Tibial (lateral plantar branch) | S2-S3 |
| Abductor Hallucis | Toe abduction/toe flexion | Tibial (medial plantar branch) | S2-S3 |