The principle of massage chair is to use mechanical rolling force and mechanical force to squeeze to massage. Manual massage can dredge meridians, circulation of Qi and blood, and maintain the balance of yin and Yang of the body. Therefore, after massage, you can feel muscle relaxation, flexible joints, invigorating the spirit and eliminating fatigue, which plays an important role in ensuring your health. For normal people, artificial massage can enhance the natural disease resistance of human body and achieve health care effect. But the mechanical massage of massage chair is different from the manual massage. Although the massage chair has several contacts, it can't select acupoints, point and carry out the action similar to the manual massage. It just imitates the action of "kneading" and "kneading". Therefore, the massage chair can only eliminate fatigue, relieve discomfort, play a relaxing role, will not have a therapeutic effect, and its strength is not easy to control, when the strength is small, the effect is not great, when the strength is large, it will make muscle pain.
