The main location of the pain is in the bilateral quaternary ribs, below the rib margins, and in the upper abdomen, while sometimes pain is also present in the lower abdomen. The main reason for the pain is due to the lack of effective warm-up before strenuous activities, mainly caused by respiratory muscle spasm. Because when the human body activities, skeletal muscles will be the first to mobilize, will consume a lot of blood and oxygen, will lead to respiratory muscle transient ischemia, hypoxia, respiratory muscle spasm, mainly in the diaphragm and intercostal respiratory muscles, so it will lead to pain and discomfort in the lumbar muscles and ribs. When the pain is obvious, you should rest immediately, and try to use abdominal breathing, while using your hands to massage the location of the pain, you can also gently pat the location of the pain, to relieve respiratory muscle spasm.