What occurs during the concentric phase of a squat?

During the concentric phase of a squat, the body performs movements that primarily involve the extension of the knee and the hip. When you rise from the bottom position of the squat, your quadriceps contract to extend the knee, while your gluteal and hamstring muscles engage to extend the hip. This coordinated effort allows you to lift your body back to a standing position, emphasizing the powerful contraction of these muscles.

In contrast, flexion at the knee occurs during the eccentric phase when you lower into the squat. Abduction of the hip and rotation of the spine are not significant movements associated with the squat, as the primary focus is on knee and hip extension. Instead, during the concentric phase, the emphasis is on the upward force generated by the extended legs, making it crucial for effective execution and strength development in this exercise.