To provide a system, an apparatus, and a method which perform objective and reproducible measurement of a muscle stiffness score indicative of muscle spasticity.SOLUTION: A system, an apparatus, and a method for measuring muscle stiffness in predetermined joints of an individual are provided. The system and apparatus comprises a measuring unit 4 and a processing unit. The measuring unit is configured to be applied to a body segment of the predetermined joints 504, 514, and 534. The processing unit is configured to: receive a plurality of data sets from at least one measurement device, analyze the plurality of data sets for one or more indications of an elicited stretch reflex, and calculate a muscle stiffness score. The muscle stiffness score is calculated on the basis of at least a difference between a first stiffness and a second stiffness. The first stiffness is determined from a first subset, and the second stiffness is determined from a second subset.SELECTED DRAWING: Figure 9
SYSTEM, APPARATUS AND METHOD FOR MEASUREMENT OF MUSCLE STIFFNESS