If there is soreness after abdominal exercise, it may be due to strenuous stretching during exercise or not paying attention to the way and method of exercise, resulting in muscle damage, as well as the large consumption of ATP in the body during exercise, so too much lactic acid accumulates in the body and causes abdominal soreness, which can be relieved by the following methods: 1. The company’s main business is to promote the development of the company’s products and services.