Method for causing relaxation of a muscle and a system for assisting a person in executing the same method

A method for causing relaxation of a muscle of a body of a person or an animal, the method comprising applying a pressing treatment sequentially to successive different spots on a skin of the body covering a certain wider region on the skin, the pressing treatment comprising:

• causing the person or the animal to perform a physical exercise of expanding and contracting the muscle so that contracting the muscle is performed in a duration corresponding to approximately two heartbeats;
• pressing one or more spots on a skin of the body toward the muscle under the skin with a fingertip or with a tool while the physical exercise is being performed;
• and
• controlling the fingertip or the tool to press on the respective spots so that:
• an area of each of the pressed spots of the skin falls within a predetermined area range when an orientation or a position of the body changes with a movement of the muscle,
• a strength of a pressing force applied to each of the spots falls within a predetermined force range when the orientation or the position of the body changes with the movement of the muscle, and
• a position of each of the pressed spots and a direction of the pressing force are maintained to be constant when the orientation or the position of the body changes with the movement of the muscle,
• wherein the area range is between approximately 2 cm2 and approximately 0.1 cm2,
• the force range is between approximately 1 kgf and approximately 100 gf, and
• the pressing one or more spots on the skin of the body includes pressing a spot on the skin of a waist of a person toward an external oblique muscle under the skin while contracting and expanding the external oblique muscle by repeating tilting an upper-body of the person in a right-left direction.