What technique involves a rapid shaking movement that involves the esthetician's shoulders and body?

The technique that involves a rapid shaking movement incorporating the esthetician's shoulders and body is vibration. This method is characterized by its fast, oscillating motions that can be applied with varying intensity and rhythm. The purpose of vibration is to stimulate the underlying tissues and promote relaxation in the client. Because the esthetician engages their shoulders and body in the execution, it can also enhance the effectiveness of the technique, allowing for a deeper level of relaxation and tissue manipulation.

In contrast, other techniques like pétrissage involve kneading movements to improve circulation and relieve muscle tension, while friction consists of deeper, circular motions intended to break down adhesions within muscle tissue. Tapotement, on the other hand, features rhythmic percussion-like strokes, such as tapping or hacking, which serves a different purpose of invigorating the skin and muscles. Understanding the unique characteristics and applications of each technique is crucial for effective practice in massage therapy.