Magnus Muscle | Adductor

The adductor magnus muscle is a masterful piece of human engineering—a single muscle with two origins, two distinct nerve supplies, and multiple opposing functions. It bridges the gap between the medial thigh and the posterior thigh, playing an essential role in everything from walking to world-class athletic performance.

Depending on the position of the leg, it can assist in both internal and external rotation of the hip. Clinical and Athletic Significance

| Hip Position | Primary Action by Adductor Magnus | | :--- | :--- | | Neutral | Adduction (both portions) | | Extended (behind body) | Extension (hamstring portion) | | Flexed (knee to chest) | Adduction + slight flexion (adductor portion) |

In sports like basketball, tennis, and soccer, rapid lateral cuts require massive eccentric strength of the adductor magnus to prevent the legs from splaying outward.