During footwork 1, which muscles are engaged concentrically on extension?

In the context of footwork 1 on the reformer, during the extension phase, the primary focus is on the engagement of the hip extensors. This action emphasizes the function of the hip extensions as the legs press away from the body, promoting stability and strength within the hip joint. The concentric contraction of the hip extensors, which includes muscles like the gluteus maximus and hamstrings, plays a pivotal role in this movement, allowing for proper extension of the legs.

Understanding this muscle engagement is vital for ensuring correct form and maximizing the effectiveness of the exercise. While the gluteus maximus is indeed involved in this phase of movement, the term "hip extensions" encompasses the collective action of several muscles that work together to extend the hip. Therefore, identifying the engagement of hip extensions as the answer provides a broader understanding of the muscular involvement during footwork 1.