The benefits and considerations of respiratory training For patients with obstructive emphysema, bronchial asthma and chronic bronchitis, respiratory training is a necessary medical step for rehabilitation: When a person breathes calmly, he or she inhales about 500 ml of air each time, except for 140 ml that stays in the ineffective cavity, the effective ventilation of the alveoli is 360 ml, and each breath can replace 1/3 of the alveolar gas. in terms of the efficiency of gas exchange, in Deep and slow breathing is more effective than rapid and fast breathing within a certain range. Respiratory training for patients with chronic obstructive pulmonary disease can improve the contraction and endurance of respiratory muscles, prevent and stop respiratory muscle fatigue, especially abdominal breathing body, which can enhance and exercise the activities of diaphragm, abdominal muscles and lower chest muscles, improve their contraction function, prompt the residual air in the lungs to exhale, eliminate the impurities accumulated in the lungs, increase the lung capacity and fully supply the oxygen needed for physical activities. Therefore, the method of breathing exercises, especially abdominal breathing training with the contraction breathing method can change the past chest breathing type, increase the depth of breathing and breathing volume, improve breathing efficiency, as long as you adhere to training persistently, you must achieve good results. Breathing training notes 1, breathing body must be through the nasal inhalation and oral exhalation. Inhalation through the nasal cavity allows the inhaled gas to be warmed, moistened and filtered by nasal hairs, reducing the stimulation of inhaled gas and avoiding the chance of causing bronchospasm. Exhalation through the mouth can change the breathing resistance. 2, to do deep slow breathing, because deep slow breathing can reduce the invalid lung volume, increase the effective lung volume when breathing calmly, improve respiratory efficiency. 3, to use the mouth contraction breathing method, lip contraction such as whistling, slow exhalation, this breathing method can delay the expiratory airflow down, improve the airway pressure, slow down the airway power compression, so that the isobaric pressure point moved to the central airway, to prevent the early closure of the airway and cause a large amount of gas retention in the lungs, significantly improve ventilation and ventilation function. 4, do abdominal breathing to exhale first and then inhale, breathing gently contract the abdomen, so that the gas from the lips of the mouth slowly blow out, exhalation should be gentle, not overly hard, exhalation time than inhalation time is longer, starting 1:2, 1:3, 1:4, gradually extended, exhalation is twice as long as inhalation. Inhale when the diaphragm position down to the abdominal cavity to make pressure, when the abdomen rises. 5, practice should choose a place where the air is fresh, both indoors and outdoors, as the old saying goes: “avoid the wind like avoiding arrows”, pay attention to keep warm, practice after the chest and abdomen relaxed, the spirit of happiness for the degree. 6, the treatment of chronic diseases to be optimistic, to do when the body is loose intention static, moving in the quiet, static in the movement, loose in the loose, exhibition in the loose, concentrated thought attention to breathing. 7, breathing action can be properly selected, sitting position can be standing, strict grasp of the principle of gradual progress, the action gradually increased, the number of times from less to more, short to long, not fatigue after exercise, not free strong, comfortable body, natural breathing is appropriate.