Abstract: The present invention involves an apparatus for stimulating skin tissue of a nonambulatory individual in a wheelchair or other mobile apparatus. The pouch of the present invention contains a fluid medium which is connected to an agitator which generates turbulence and disturbances within the fluid medium. For example, a vibrator may be placed adjacent to the pouch and vibrate the fluid medium. These motions are transmitted through the fluid medium to stimulate the skin and underlying tissue which is resting on the pouch. The pouch may be connected to the support bars of a wheelchair, or have arms to extend around and attach to a chair seat in a scooter. A pocket of the pouch serves to hold the agitator in contact with the fluid, e.g., water, so that the fluid is adequately turbulated and disturbed to have a stimulating effect on the body tissue.