What fitness test measures the flexibility of the back and hamstring muscles?

The sit and reach test is specifically designed to assess the flexibility of the lower back and hamstring muscles. In this test, an individual sits on the floor with their legs extended straight and feet together, then reaches forward as far as possible towards their toes. The distance reached is measured to evaluate flexibility. Flexibility in these areas is important for overall physical performance and can help prevent injuries during various physical activities.

In contrast, the vertical leap test primarily measures explosive power and strength of the legs; the beep test evaluates cardiovascular endurance via a shuttle run; and the Cooper test assesses aerobic fitness through a timed running distance. Each of these tests focuses on different aspects of physical fitness, illustrating why the sit and reach test is the most appropriate choice for measuring flexibility specifically.