A: We think that if we don't pay attention to scientific and reasonable methods in physical exercise or training, it will definitely affect our health. If the exercise mode is improper or the amount of exercise is too large, it is easy to cause sports injury, knee ligament and meniscus injury, muscle spasm, abdominal tingling, muscle injury and so on. Therefore, we'd better exercise and exercise under the correct guidance of a fitness coach, and strive to achieve scientific and reasonable exercise and training, so as to keep fit and enhance physical fitness.