Abstract: A force dynamometer includes at least one plate, a controller with a memory and at least one force sensing resistor that senses a force exerted on the one or more plates. The controller receives a signal indicating magnitude of the force and transmits a signal to at least one color variable light emitting diode (LED) to change color of the color variable LED in response to the force sensing resistor changing magnitude of the force signal transmitted to the controller. The controller may transmit a signal to one or more piezoelectric sensors such that the controller controls intensity of vibrations and/or magnitude of frequency of the vibrations of the one or more piezoelectric sensors. A force dynamometer system includes a computing device that displays or controls speed of a variable motion speed image or object or displays or controls a direction controllable image or object via the force dynamometer.

Abstract: A therapeutic hand-held exercise device includes a pair of movable members that each define a handle portion and an end effector portion. The movable members are pivotably connected for relative pivotal movement between a first position and a second position. The handle portion of one of the movable members defines at least one flexible member engaging post. The end effector portion of the other movable member defines at least one flexible member engaging post such that the flexible member engaging posts can receive a common flexible member. The flexible member engaging posts are joined via a first common flexible member and other flexible member engaging posts are joined via a second common flexible member. The common flexible members may each exhibit a tensile strength that provides resistance to movement which either differs from or is equal to the tensile strength of the other common flexible member.