What is the primary action of the gluteus minimus?

The primary action of the gluteus minimus is to abduct and medially rotate the thigh. This small muscle, located beneath the gluteus medius, plays a crucial role in stabilizing the pelvis during activities such as walking, running, and balancing on one leg. When the thigh is abducted, the gluteus minimus helps to raise the leg away from the midline of the body while also contributing to medial rotation, which involves turning the thigh inward.

This action is particularly important in maintaining proper gait and preventing injuries by aiding in the stability of the hip joint. The gluteus minimus works alongside other muscles, including the gluteus medius and tensor fasciae latae, to ensure effective and safe movement of the lower body during various physical activities.