How does the gluteus medius contribute to walking and running?

The gluteus medius plays a crucial role in walking and running primarily by stabilizing the pelvis. This muscle is located on the lateral aspect of the hip and is essential for maintaining balance and proper alignment during movement. When you walk or run, as one leg lifts off the ground, the gluteus medius on the opposite side helps to stabilize the pelvis, preventing it from dropping excessively to one side. This stabilization is key to maintaining an efficient running or walking gait, as it allows for a more effective transfer of weight and energy.

Additionally, proper function of the gluteus medius is directly linked to control and alignment of the hip and knee joints, reducing the risk of injury and promoting a smoother, more efficient gait. If the gluteus medius is weak or not functioning properly, it can lead to excessive lateral movement, which can contribute to issues like hip and knee pain or improper biomechanics during activities. Thus, the primary contribution of the gluteus medius during walking and running is its role in pelvic stabilization and maintenance of gait mechanics.