Provided is a spasticity measurement device making it possible to readily measure the degree of spasticity. A spasticity measurement device (10) is provided with a leg attachment tool (12) to which a lower leg attachment part (24) and a foot-accepting part (20) are linked so as to enable relative rotation. When the lower leg attachment part (24) and the foot-accepting part (20) are rotated in a relative fashion, the rotation is prohibited by a rotation prohibition device comprising a projection (88), an engagement recess (86), a helical compression spring (94), and other components, and the muscle contraction force acting in the direction of rotation thereof in this state is measured by a muscle contraction force measurement device constituted of a strain gauge (78), a data processing device (82), and other components. For this reason, rotating the foot-accepting part (20) and the lower leg attachment part (24) in a relative fashion causes rhythmic and repeated contraction in a test subject in whom spasticity of the lower leg (16) has been induced, while the lower leg flexor muscles remain fixed in a stretched state thus, using the muscle contraction force measurement device to measure the muscle contraction force acting in the direction of rotation of the foot-accepting part makes it possible to easily and quantitatively measure spasticity.La présente invention concerne un dispositif pour mesurer la spasticité qui permet de mesurer facilement le degré de spasticité. Un dispositif pour mesurer la spasticité (10) comprend un outil (12) de fixation sur la jambe auquel un élément (24) de fixation sur la jambe inférieure et un élément (20) destiné à recevoir le pied sont connectés pour permettre une rotation relative. Quand lélément (24) de fixation sur la jambe inférieure et lélément (20) destiné à recevoir le pied sont en rotation dune manière relative, la rotation est bloquée par un dispositif bloquant la rotation comprenant une saillie (88), un évidement de coopérat
