The test is particularly useful for tennis players because the movements used are similar to tennis with respect to the stop, start and change of direction movement patterns and can be easily administered with a squad or team simultaneously. Wall Squat Test Assess your quadriceps leg muscle strength endurance with the Wall Squat Test. As this test measures tibia angle relative to vertical, full ROM would be an athlete achieving an angle of 0 degrees. This test is designed to measure lower limb explosive power by measuring the height a client is able to jump. With A squat test will assess just how well you are doing with strengthening it.