| Movement | Range of Motion |
|---|---|
| Flexion | 140 |
| Extension | 0 (anatomical position) |
| Medial Rotation | 25 (only at 90 flexion) |
| Lateral Rotation | 25 (only at 90 flexion) |
Muscles Producing Movements
| Flexion: | Biceps femoris, semitendinosus, semimembranosus, gracilis sartorius, popliteus. (Possible assistance by gastrocnemius and plantaris muscles if foot is fixed). |
| Extension: | Quadriceps femoris (possible assistance by tensor fascia lata and gluteus maximums through the iliotibial tract). |
| Medial Rotation: | Popliteus, semimembranosus, semitendinosus, sartorius, gracilis. |
| Lateral Rotation: | (of tibia) biceps femoris. |
Click to see images below:
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