Sit on the mat or deck with a partner. One person will attempt to touch their toes while keeping their legs straight. Your partner will measure the distance between your fingers and your toes. If the distance is under, record it as a minus number. If you reach past your toes, record it as a plus number.
Exact reach is recorded as a zero.
Place one hand behind the back with palm facing outward. Place the other hand behind the head with palm facing the back. Try to clasp the fingers. Record the measurements in minus inches if the fingers do not touch or plus inches when the fingers can slide past each other. A finger to finger touch is zero.