Sit on the floor with the legs extended straight in front, feet together
Place the soles of the feet against the sit and reach box, with the heels at the base of the box
Keep the knees fully extended (not bent) throughout the test
Place one hand on top of the other with palms facing down, and reach forward along the measuring scale of the sit and reach box
Slowly exhale and reach forward as far as possible, sliding both hands along the measuring scale without bouncing or jerking
Hold the end position for 1-2 seconds to allow for measurement