Abstract: A spasticity measurement apparatus includes: a leg mounting fixture including a lower leg mounting portion mounted on a lower leg of a subject for fixation, and a foot receiving portion coupled to a lower end portion of the lower leg mounting portion and having a heel receiving portion and a toe receiving portion for respectively receiving a heel and a toe of a foot leading to the lower leg, the toe receiving portion being disposed relatively rotatably around the heel receiving portion in an approaching rotation direction bringing the toe receiving portion closer to the lower leg mounting portion; a rotation inhibition apparatus inhibiting relative rotation when the foot receiving portion rotates relative to the lower leg mounting portion in the approaching direction; and a muscular contraction force measurement apparatus measuring a muscular contraction force acting in a rotation direction.