There are numerous functional tests that you can use to evaluate your mobility and flexibility in different body parts and movements. The overhead squat test is a popular and effective option, as it assesses ankle, knee, hip, and shoulder mobility, as well as core stability and posture. To perform it, stand with your feet shoulder-width apart and your arms overhead. Squat down as low as you can while keeping your heels on the ground, knees aligned with toes, arms straight, and chest up. If you experience any difficulty or compensation in any of these areas, you may need to work on improving them. Additionally, the sit and reach test measures hamstring and lower back flexibility. To perform it, sit on the floor with your legs extended and feet together. Reach forward with both hands and try to touch your toes or beyond. If you can't reach them or feel any discomfort in your lower back, consider stretching your hamstrings and improving spinal mobility. Lastly, the shoulder mobility test assesses shoulder range of motion and stability. Stand with your back against a wall and arms at sides. Raise one arm overhead and bend elbow to touch wall behind you. Reach other arm behind back to try to touch opposite hand. If you can't touch them or feel any pain or tightness in shoulders, you may need to loosen up shoulder muscles and joints.