Abstract: A portable device for use in the application of simultaneous radial vibration, orbital motion and rotational or torsional oscillation to a person. The device includes: (1) a power unit for housing a power source to supply power to the apparatus; (2) a motor having an output shaft positioned within the power unit; (3) a stimulator for directly translating rotational energy into orbital motion, creating rotational or torsional oscillation, and producing random radial vibration; and (4) a flexible covering surrounding the device.