subject: Health Fitness Club and Its Features [print this page] Electro stimulation is another important technique in a health fitness club that provides a means by which you can gain muscle without stressing your nervous system. This stimulates precisely certain muscle groups in order to achieve a faster muscle growth. The operating principle of electro stimulation is very simple because it faithfully reproduces the muscle contraction when it is controlled by our brain. A health studio is also said to come with the added advantage of a spa.