What is the recommended tool to evaluate flexibility in TC 7-22.7?

The recommended tool to evaluate flexibility in TC 7-22.7 is the sit-and-reach test. This test specifically measures the flexibility of the lower back and hamstring muscles, which are critical for a range of activities and overall mobility. It involves sitting on the floor with legs extended and reaching forward to touch the toes, providing a clear assessment of how far one can reach, thus reflecting flexibility levels effectively.

In contrast, the vertical jump test assesses lower body power and strength rather than flexibility. The push-up test focuses on muscular endurance and strength of the upper body. Lastly, the mile run evaluates cardiovascular endurance, which is unrelated to flexibility. Therefore, the sit-and-reach test is uniquely suited to assess flexibility, aligning with the metrics outlined in TC 7-22.7.