“…Prevention measures: 22 , 23 , 24 , 25 (1) Trainees should have adequate warming-ups before training; (2) The training intensity should be gradual and combine work and rest. The weak trainees should start from low intensity training to gradually strengthen the core muscle strength; (3) The key points of training movements should be standardized, and non-standard and uncoordinated movements should be guided to correct; (4) After training, trainees should relax, such as static muscle stretching to gradually relax the muscle.…”