Abstract: A vibrator apparatus is provided. The vibrator apparatus includes a body weight support to support the body weight of a subject. The body weight support is attached to at least one arm, which includes a first arm portion and a second arm portion. The second arm is adjustably positionable with respect to the first arm portion. The vibrator apparatus also includes a vibrator assembly mounted on the second arm portion of the arm. The second arm portion is positionable relative to the first arm portion to engage an abdominal region of the subject and apply localized inwardly-directed mechanical vibrations.