TExES Physical Education EC-12 Practice Exam 2025 – Comprehensive Test Prep

The essential characteristic of a mature running pattern that is correct is that the arms swing in synchronized opposition to the leg action. This coordination between arm and leg movement is crucial for maintaining balance and momentum during running. When the arms move in opposition to the legs, it helps to stabilize the runner's body and enhances the efficiency of the running gait.

This synchronization allows for a more powerful and fluid running style, which is often observed in experienced runners. As the left leg moves forward, the right arm swings forward, and vice versa, creating a natural rhythm that keeps the body aligned and balanced.

The other choices describe important elements of running, but they do not capture the primary characteristic of mature running. For instance, the forward lean of the trunk is common in running but not necessarily indicative of maturity in running technique. Likewise, while contact of the support foot and the knee bend after foot contact are also components of running mechanics, they do not describe that pivotal arm-leg coordination which characterizes a skilled runner.