Muscle ache 2 muscle ache occurs immediately after transportation or transportation, and the lactic acid content reaches its peak due to lactic acid accumulation; Another muscle pain is caused by the second or third muscle pain; Occasionally, muscle fiber damage can cause muscle soreness. Excessive recovery or severe muscle soreness from muscle fiber injury with odd muscle diameters. Training level reflects physical harm and prevents muscle soreness: 1. Muscle stretching before fitness is the key point of static stretching. 2. The principle of gradualism must be discussed. The intensity of weight-bearing training is still sore in the initial practice of weight-bearing fitness. What's more, if you can lift weights, you should add zero strength slowly. 3. Fitness supplements protein carbohydrates for muscle repair Dan Fitness now uses cold compress and hot compress to relieve the pain, 12 cold compress to relieve the pain, and then uses 12 hot compress to completely eliminate the pain, during which some simple walking and stretching are done.