Blinded measurement will be made before randomisation, at the end of intervention and 12-weeks thereafter. Primary outcomes are the Action Research Arm Test (ARAT)and the Nine Hole Peg Test (9HPT). The secondary outcomes are peak torque around the elbow joint in elbow flexion and extension, grip force, pinch force, smoothness of movement during turning a cranked wheel and reciprocal inniveration of biceps and triceps during turning of a cranked wheel.