An elliptical ring of steel to which is attached a dial and moving index. It is used to test the strength of the muscles of the forearm, being squeezed in the hand, and registering the pressure in pounds or kilograms.
n. a device for recording the force of a muscular contraction. A small hand-held dynamometer may be used to record the strength of a patient’s grip. A special optical dynamometer measures the action of the muscles controlling the shape of the lens of the eye.