Abstract: A measurement device includes a plurality of measurement belts and a plurality of side plates configured to be positioned around a user's body. A plurality of locking mechanisms each operable to adjustably couple one of the measurement belts and one of the side plates. The measurement device also includes a plurality of canting mechanisms coupling the measurement belts and the side plates. The canting mechanisms allow the associated measurement belt and side plate to rotate about associated pivots to allow the measurement belt and side plate to conform to user's body. The canting mechanisms also synchronize the movement of the side plate and the measurement belt such that movement of one causes an equivalent movement of the other. The point at which each measurement belt is coupled to the associated canting mechanism and the associated side plate is identifiable by one or more measurement indicators.

Abstract: An ambulatory traction device includes two support belts configured to be positioned around a portion of a user's body and one or more lifting mechanisms. Each lifting mechanism is coupled between the support belts and operable to apply a decompressive force to the portion of the user's body when the support belts are positioned around the user's body.

Abstract: An ambulatory traction device includes a first support configured to be positioned on a user's body and a second support configured to be positioned on the user's body spaced apart from the first support such that a joint of the user's body is positioned between the first and second supports. The traction device also includes one or more lifting mechanisms that couple the supports and that apply a decompressive force to the joint when the supports are positioned on the user's body. Each lifting mechanism includes a sleeve having a substantially elliptical cross-section and a piston configured to move within the sleeve in response to an increase in pressure within the sleeve.

Abstract: Method and apparatus for providing force feedback in continuous passive motion systems for use in treating or preventing low back pain. A mechanism adjacent to a static back support is provided to initiate continuous passive motion for the lumbar area in order to produce substantial lordotic motion for the spine. A force measuring apparatus is provided for continuously measuring the force exerted by the mechanism on an individual's lumbar area and a system controls the force exerted by the mechanism in order to build up to and then maintain a predetermined force on the lumbar area of the user. Thereafter, a predetermined time is selected to allow the lordotic position of the spine to be returned to its original state.