During exercise, the oxygen demand increases, breathing is strengthened, and lung ventilation also increases dramatically. For example, when the middle and long-distance running, the ventilation rate per minute can reach 100-200 liters. Normally, when a person is quiet or engaged in light labor or exercise, he or she should breathe through the nasal passages to achieve cleansing, moisturizing and warming of the air, which is necessary to maintain health. However, once strenuous activity is performed, in order to meet the needs of the body's oxygen, the amount of lung ventilation per unit time increases by several dozen times than usual, so that the passage through the nostrils and the nasal cavity is beyond reach. If the nasal passages are hard to breathe during exercise, the pulmonary ventilation volume can only reach 80 liters per minute, and to overcome the enormous resistance of the narrow nasal cavity to the air, the respiratory muscles have to work harder, so that the body will soon enter a state of fatigue. Manicure Set,Manicure Tools Suit,Manicure Pedicure Set,Nail Tools Yangjiang Etina Houseware Co., Ltd. , https://www.jmstjsrobot.com
Exercise physiologists believe that there are three advantages to using the mouth instead of an arm or a combination of mouth and nose breathing methods: (1) Reducing pulmonary ventilation resistance, increasing gas flow, and pulmonary ventilation can reach more than 160 liters per minute, which is better than nasal breathing alone. Larger than 1x; (2) Reducing the additional burden of respiratory muscles to overcome airflow resistance, thereby delaying the appearance of fatigue; (3) Exposing the damp surface of the mouth full of blood vessels, increasing the thermal pathways during exercise.
The main drawback of mouth breathing is that it does not function like a nasal cavity to purify and moisten the air. However, as long as you choose fresh air during exercise, and the weather is cold, you should use mouth and nose breathing method, semi-open cavity, the mouth can not be too large, the teeth close together, while the tongue touches the oral hard palate, so that cold air will warm through these areas Wet, not to directly stimulate the throat, the disadvantage of breathing with the mouth is not difficult to overcome.
Breathing with mouth during exercise