Which statement about running patterns is least accurate?

The statement regarding hip flexion in the running patterns highlights a critical distinction between the mature and immature running techniques. In the mature running pattern, there is generally greater hip flexion of the striding leg. This increased hip flexion allows for a longer stride and better propulsion, which are hallmarks of a more efficient running technique.

In contrast, the immature running pattern typically features less hip flexion, contributing to a more constrained and often less effective running style. The other statements accurately describe various aspects of the differences between immature and mature running patterns. For example, in mature runners, the foot landing directly under the center of gravity improves balance and efficiency, while the bilateral arm swing becomes more pronounced, aiding in momentum and stability. Additionally, the base of support narrows in mature runners, promoting more efficient movement and speed. Therefore, the statement about hip flexion is least accurate because it misrepresents the characteristics of mature compared to immature running patterns.