Is it normal for children's auxiliary respiratory muscles to participate in breathing?

Western medicine believes that respiratory movement is regulated by respiratory center, which is dominated by cerebral cortex and influenced by various nerve reflexes. The breathing frequency of healthy adults is 16~20 beats/min, and the ratio of it to the number of heartbeats is 1: 4, and the ventilation per minute is about 8 ~ 10 beats/l. When the frequency, rhythm and depth of breathing change, it is called dyspnea. When patients feel short of air or breath and have difficulty breathing, the respiratory muscles and auxiliary respiratory muscles participate in breathing movement, and the frequency, depth and rhythm of breathing change, which is called dyspnea. Open your mouth, lift your shoulders and twitch your nose, which is the performance of assisting respiratory muscles to participate in respiratory movement. It can be seen that "breathing" in Chinese medicine means that the frequency of breathing is accelerated and the depth is deepened. Severe cases are dyspnea, and there is also asthma syndrome in Treatise on Febrile Diseases.