Abstract: A therapeutic lower extremity device is provided. The device generally comprises a pair of coupling members 10 and 12, interconnected by a tensioner structure 14. The tensioner structure 14 enables an adjustable linear displacement between the coupling members 10 and 12, and may include a goniometer arrangement 16 for angle readings between the coupling members when applied on a patient. A pair of air inflatable elements 30 and 30A are provided in apposition to each other in each of the coupling members. The air inflatable elements are preferably connected to corresponding air pressure gauges 36 to facilitate a reading of the muscle contraction strength.

Abstract: A therapeutic exercise device, including receptacle means designed to support a person's lower or upper extremities. A substantially rectangular support base (10) is slidably associated with the carriage (16), in such a manner as to allow a longitudinal displacement of the carriage on the support base. In addition an adjustable resistance arrangement is included to allow increased frictional resistance in between the carriage, and the support base Consequently with increased frictional resistance, increased muscular energy is required to achieve the longitudinal displacement of the carriage on the support base. Thus a more versatile therapeutic device is provided, that permits a simple and accurate measurement of the rehabilitation performance of the lower or upper extremity affected. This device may be employed for strengthening abdominal and back muscles in the process of physical therapy, especially in facilitating Mc Kinsey exercises for lower back.