What is the result of hip flexor contracture on terminal stance?

A hip flexor contracture refers to a condition where the hip flexor muscles, primarily the iliopsoas, become shortened or tight, which can significantly influence gait mechanics during walking. In the terminal stance phase, the hip is typically extended as the body prepares for the weight transfer and toe-off.

When hip flexor contracture is present, the pelvis and trunk may not be able to achieve the appropriate alignment and positioning needed for effective gait. As the leg moves into terminal stance and the hip is meant to extend, the tightness in the hip flexors restricts this motion. As a result, the extremity may not be able to maintain full extension, leading to an earlier than expected toe-off.

This earlier toe-off occurs because the body compensates for the inability to adequately extend the hip during the stance phase. Thus, the gait cycle is disrupted, and the individual may transition from stance to swing sooner than normal, reflecting a premature toe-off due to the limitations imposed by the hip flexor contracture. This adaptation can hinder proper gait mechanics, affecting overall walking efficiency and stability.

The other options represent effects that would not be valid in the presence of a hip flexor contracture. For example, delayed toe-off would