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This case study describes the problems of a 28-year-old professional footballer and the application of isokinetic dynamometry equipment to quantify resistance of soft tissues to passive motion. An increased resistance to passive movement at the end of flexion occurred earlier in the injured leg than in the uninjured leg and was compatible with clinical observations. The characteristics of the curve recorded with the KinCom isokinetic dynamometer indicated that increased resistance is due to passive resistance of quadriceps. Following treatment, including a stretching regime for quadriceps muscles and isokinetic strengthening of hamstring muscles, the footballer could sprint maximally with confidence and he returned to competition at international level. Further detailed studies are required to validate the method and satisfy demands concerning repeatability and sensitivity before KinCom dynamometry can be recommended as an outcome measure to assess intervention.

Original publication




Journal article



Publication Date





628 - 630