Active and antagonist muscles are mainly named according to the role played by the muscle, there is no concept of strength difference, and the two can not be directly compared. If the strength of the active and antagonist muscles are relatively weak, it is easy to affect the stability of the joints, and we need to choose the treatment program according to the cause of the disease. The causes and treatment of the poor strength of the active and antagonist muscles are as follows: 1. Nerve damage: If the nerve innervating the muscle is damaged, it may lead to the poor strength of the active muscles around the joints as well as the antagonist muscles, which will lead to the decrease of the stability of the joints. Treatment can be prescribed by the doctor through nutritional nerve drugs, such as oral methylcobalamin tablets and vitamin B6 tablets and other drugs; 2, insufficient exercise: if the muscles are braked for a long time or lack of exercise, it may lead to muscle atrophy and decreased strength, which will cause the active and antagonist muscles to appear poor strength phenomenon. Treatment needs to be treated through the method of sports rehabilitation, active contraction of local muscle exercise. While restoring muscle strength, attention should be paid to diet and nutrition, eat more protein-rich foods, such as milk, eggs, beef, etc., and eat a moderate amount of fruits and vegetables to ensure balanced nutrition, in order to increase the strength of the active and antagonist muscles, so as to alleviate the phenomenon of poor strength of the active and antagonist muscles.