Patients residing in thoracic surgery are often asked to perform pulmonary function exercises as they are extremely important in the prevention and treatment of pulmonary atelectasis. So how to do lung function exercise? 1, deep and slow breathing, inhale through the nose, shrink the lips and exhale, inhalation and exhalation time ratio of 1:2 or 1:3. 2, physical exercise, ① up and down the stairs, the time to the patient’s ability to tolerate the subject, 2 times / d; ② every morning and evening to the outdoors alternately walking and jogging, method: walking 50 m, jogging 50 m; ③ in situ squatting exercise, each time from 5 to start to gradually increase the number of 3 times / d, the above training under the supervision of a nurse, 3, abdominal breathing method, abdominal breathing method, in order to prevent lung dysplasia, the patient is often asked to exercise pulmonary function, because it is extremely important to prevent the treatment of lung dysplasia? Abdominal breathing, the breathing method of letting the abdomen bulge when inhaling and concave the abdomen when exhaling, and develop the habit of smooth and slow abdominal breathing. Breathe deeply and slowly, and try to use your nose instead of your mouth. 4, blowing up balloons, blowing up bottles, respiratory exercise machine, etc., the fundamental purpose is to practice deep inhalation.