Abstract: A device is provided for registering and recording induced imbalance in a human subject. A horizontal platform is adapted for controlled, linear displacement in a horizontal plane to induce imbalance. Imbalance and response can be detected and recorded by means of electric contact shoes or other means.

Abstract: A device is provided for registering and recording induced imbalance in a human subject. A horizontal platform is adapted for controlled, linear displacement in a horizontal plane to induce imbalance. Imbalance and response can be detected and recorded by means of electric contact shoes or other means.

Abstract: An isoinertial lift machine is described which can be used to evaluate and train patients in the static and dynamic lift modes. The machine consists of an arm which can be positioned on a vertical column. At the end of the arm, various size attachments and handles can be attached. The arm also carries a force sensor that measures the forces applied to the handles. In the static mode, the arm is positioned at a desired height and locked in place. The patient lifts on the handle, and the force sensor registers the lifting force. Since the handle does not move during the lift, the mode is called static. In the dynamic mode, the arm/handle moves in the vertical direction during the lift. A resistance mechanism is used to resist the lifting force applied by the user at the handle. The resisting force is always pulling the arm down, both in the lifting and the lowering motion. The resisting force remains constant throughout the range of motion during lifting.

Abstract: A device for measuring linear force which is converted to rotational force or torque. Initially, force is applied in a linear direction to a means for transmitting that force to a rotatable shaft where it is converted to rotational force which can be measured by a strain gauge. The device is mounted on a vertically adjustable column attached to a moveable base.

Abstract: A device is provided for rehabilitation, exercise and therapy which consists of an upright standard to which are attached in predetermined order and position, arrays of modules made up of interchangeable units attached together in varying configurations. Assembly and disassembly of the modules from the standard in the proper sequence and position accurately simulates various stretching, bending, lifting and stooping operations encountered in occupational and other efforts.

Abstract: A method and device for rehabilitation and evaluation are described in which the individual is required to perform manual operations within a visually obscured enclosure. Partitions are provided within the enclosure to simulate the performance of mechanical operations within a confined space. The operations themselves may typically be the placing and tightening of nuts on bolts which project into the enclosure.