A dynamometer for biomechanical use

A dynamometer has been designed for measuring isometric forces in human body limb segments. The dynamometer constrains the chosen segment, and measures two orthogonal components of the force reaction between the segment and the dynamometer in a plane perpendicular to the long axis of the segment, plus the torque reaction parallel to the long axis of the segment. The testing and operating characteristics of the dynamometer are described, and it is concluded that in view of its versatility and accuracy, the dynamometer may be suitable both for research and for clinical use.