Not normal. Maybe I didn't grasp the requirements and used improper force. It is suggested to strengthen warm-up activities to achieve safe and effective exercise. The "Fitness Qigong Warm-up Exercise" edited by Huo Ruiming is compiled in teaching practice, which can not only warm up, but also learn the basic skills of Wuqinxi, and the effect is very good. Join Huo Ruiming's fitness and health blog when you have time to let you know more.