Dynamic shoulder dynamometry: a way to develop delay onset muscle soreness in shoulder muscles.
A dynamic shoulder dynamometer has been designed to develop a vertical downward force over a measured range of motion, i.e. scapular elevation. The dynamometer is force-controlled to apply a required force within the range of motion. Calibration procedures were performed to assess the reliability of the force and displacement measurements. The system is designed to operate in isometric or eccentric conditions. For eccentric exercise the dynamometer has, for the first time, provided possibilities to elicit delay onset muscle soreness in shoulder muscles. In future, the apparatus will enable investigations of sensory-motor interactions in the shoulder region.
Madeleine
Pascal
P
Laboratory for Experimental Pain Research, Center for Sensory-Motor Interaction, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7D-3, DK-9220 Aalborg, Denmark. pm@smi.auc.dk
Nie
Hongling
H
Arendt-Nielsen
Lars
L
D001696:Biomechanical Phenomena / Q000295:instrumentation; D006801:Humans; D009119:Muscle Contraction / Q000502:physiology; D018763:Muscle Fatigue / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D010146:Pain / Q000503:physiopathology*; D012782:Shoulder / Q000502:physiology*; D012785:Shoulder Joint / Q000502:physiology*