Pain is not caused by strain, but by excessive creatine secreted by muscles after exercise, which is normal for the body to metabolize lactic acid. The reason is that you don't exercise for a long time. If only I didn't exercise for a day or two. If you continue to exercise, it may aggravate the pain, but if it is moderate, it will be fine. A week later, rest for two days. If you continue, you will feel no more pain. At first, don't overdo it. It is best to increase it slowly, so as to grow healthy muscles.

Special suggestion: it is best to relax the ligament after practice, which can make your muscles undress and look good. Because I feel tight after training, that is, muscle activity is congested, which is customarily called "pumping feeling". This feeling is more obvious, which means that the muscles are stimulated more fully. After training, you need to relax, massage or do some stretching exercises in time to relax the tense muscles, which can accelerate the recovery of the body and enhance the effect of exercise.