Conventional fitness or exercise weakness involves the deep muscle tissues of the human body, and these weak deep muscle tissues are the main cause of body defects and back problems. The osteosynthesis machine is very effective for expanding the intervertebral space, periarthritis, lumbar muscle strain, foot massage, and increasing blood flow; it can also be used to prevent back pain. On the one hand, deep back muscles can be strengthened, on the other hand, it can also eliminate painful tension on the back and neck surface muscles. For different diseases of spine problems, such as neck syndrome, upper arm syndrome, vertebral joint stiffness, lumbar rheumatism, etc., specially developed exercises can strengthen deep trunk muscles, stabilize the spine in a short time, improve body shape and be good Prevention of back pain and disc problems.