The main cause of muscle atrophy is disuse: if you suffer from arthritis, especially rheumatoid arthritis, the affected limb cannot move normally, so that the muscles of the limb gradually atrophy; the fracture of the limb is fixed by a plaster, Failure to perform functional exercises within the prescribed time can lead to muscle atrophy in the affected limbs; long-term bed rest after suffering from certain diseases can cause local or systemic muscle atrophy. Since muscle atrophy is mostly caused by disuse or underuse of muscles, exercise can effectively improve and treat muscle atrophy. However, you must pay attention to the following issues when exercising:

1. Choose exercise in a targeted manner. There are many ways to exercise, but in order to achieve the purpose of increasing muscle as quickly as possible, one must follow the same principle: when exercising, without increasing the number of exercises and exercise time, gradually increase the amount of exercise to make the muscles feel tired quickly and achieve The purpose of building muscles. Each exercise should be performed continuously for 10 times. If it exceeds 10 times, the weight of the equipment needs to be increased; or each exercise can be done two or three times in a row, holding for 6 to 10 seconds each time. If it exceeds 10 times, the weight of the equipment will also need to be increased. weight. If you only increase the exercise time, you can only increase the density of capillaries in the muscles, improve the blood circulation of the muscles, increase the supply of oxygen and nutrients to the muscles during exercise, and make the muscles less prone to fatigue, but cannot effectively strengthen the muscles. It should be pointed out that the exercise methods used by many patients in daily life are inappropriate. For example, for lower limb muscle atrophy, some people only exercise by walking, thinking that the more they walk, the better. In fact, not only does this not effectively enhance muscle strength, it will also cause joint damage due to muscle relaxation and joint instability. And if some patients use the method of rolling walnuts and fitness balls with their fingers to exercise their atrophic upper limbs, don't they know that this can only enhance the coordination of finger movements and the endurance of hand muscles, but cannot enhance arm muscle strength and muscle thickening. Exercises for muscle atrophy should be targeted. Which muscles have atrophied should be exercised. Do not use healthy muscle movements to replace atrophic muscle movements, such as shrugging, abduction, etc. instead of forearm rotation.

2． Master the rhythm of exercise. Exercise for patients with muscle atrophy has certain requirements on time intervals. Only when the muscles have enough rest time can fatigue be fully eliminated, the nutrients consumed can be fully compensated, and the muscles can gradually become hypertrophy through excessive compensation. On the contrary, if you exercise too frequently, your muscles will not get enough rest and your muscle strength will not be enhanced. Therefore, exercise should be rhythmic, and more is not always better.

3. Master the amount of exercise. When exercising, people often use dumbbells, sandbags, tension springs, and rubber strips. So, what weight of dumbbells, sandbags, and what kind of tension springs and rubber strips should be selected? This should be determined based on each person's muscle strength, which should generally exceed 2/3 of the person's maximum muscle strength. For example, use your maximum strength to lift a 6kg sandbag and gradually increase the weight of the sandbag. If the original muscle strength is too weak to lift the affected limb by itself, then during exercise, in addition to the exertion of the affected limb itself, external help is needed. If an upper limb is sick, you can use the method of holding both hands and lifting it up, and use the healthy limb to drive the affected limb to move. The injured limb may experience pain when exercising, and the pain will reflexively relax the muscles, making the exercise ineffective. At the same time, pain may also be a signal of muscle damage, so when exercising, you should pay attention to choosing painless movements and actively treat pain.