There are many variations on this stroke. It may be applied with the edge of the hand, with the tips of the fingers, or with a closed fist. Tapotement attempts to release tension and cramping from muscles in spasm. Vibration, or Shaking , involves the therapist pressing his or her hands on the back or limbs, and rapidly shaking for a few seconds. It boosts circulation and increase the power of the muscles to contact.
Vibration is particularly helpful to people suffering from low-back pain.