Abstract: An isometric testing apparatus for performing isometric strength tests on individual muscles or joints of a patient includes a base, a seat coupled to the base, a vertical member coupled to the base, a horizontal arm coupled to the vertical member, and a force measuring device coupled to the horizontal arm. The base is configured for conserving space and allowing for placement proximal a corner. The chair is adjustably coupled to the base and may be adjusted to be located within the testing area, outside the testing area, and adjacent the testing area so that the chair may be used as needed or moved out of the way. The force measuring device is adjustably coupled to the base through the horizontal arm and vertical member and is horizontally and vertically adjustable for proper placement of the force measuring device. The force measuring device is pivotally mounted to the horizontal arm and pivots in a vertical plane to correct for any deflection of the vertical arm.

Abstract: First and second incline sensing devices measure the bending motion of the first body region and the second body region, respectively, in relation to gravity to provide range of motion determinations. With the incline sensing devices held against their respective body regions, a practitioner zeros a digital display provided on the device and the patient performs a range of motion exercise while the practitioner notes the angular value which is continuously updated on a display. The device is small, easily handled, and self contained. Numerous structures are provided to extend the useful life of an internal battery which provides power to all the components. The device utilizes programmed array logic components, which are reliable and consume very little power, to calculate the different between the orientation with respect to gravity of the two incline sensing devices. The difference is shown on a liquid crystal display.