The invention relates to a device for measuring the spasticity of an articulation of an individual, the articulation being located between a first limb and a second limb, said device being characterised in that it comprises: a first part for receiving all or part of the first limb of the articulation； a second part for receiving all or part of the second limb of the same articulation, the second part being pivotably connected to the first part about a rotational axis； and means for determining a spasticity score from measurements relating to the reaction of said articulation to a flexion exerted on the articulation, the determination means comprising a means for measuring an articulation reaction torque at the site of the rotational axis.
