Due to airway obstruction, patients suffering from LBP often have difficulty with inspiration, so they need to actively engage in pulmonary exercise to effectively reduce the discomfort. Among them, abdominal whistling and lip reduction whistling method can strengthen the muscle strength and endurance of the thoracic and diaphragmatic whistling muscles, and easy to do, can be done at home at any time. Abdominal whistling exercise abdominal whistling exercise method is: the patient to take the standing position, sitting, or lying down position, easy to grasp when you first learn to lying down position. Two knees half flexed, so that the abdomen relaxed. The two hands naturally down against the abdomen, slowly inhale with the nose, the diaphragm to the greatest extent possible, the abdominal muscle relaxation, hands feel the abdomen up to the end, whistling, the abdominal muscle contraction, hands to assist the abdomen down, the diaphragm relaxation, the diaphragm with the abdominal cavity pressure and lift, try to whistle all the air, increase the whistling tidal volume. At the same time can be combined with lip reduction whistle method, daily exercise, from short to long, gradually get used to the smooth and slow abdominal whistle. Training abdominal whistling helps to reduce the whistling frequency, increase the tidal volume, alveolar ventilation, reduce the amount of functional residual air, and increase the ability to cough, cough sputum, relieve the symptoms of dyspnea, and improve the ventilation function. Lip reduction whistling exercise Lip reduction whistling method is: the patient whistles with the abdomen sunken, the chest tilted forward, the lips of the mouth narrowed, try to whistle out the air, easy to extend the whistling time, while the oral pressure increases, transmitted to the terminal airway, to avoid premature closure of small airways, improve the effective alveolar ventilation. Inhale and whistle time ratio of 1:2 or 1:3, try to inhale deeply and whistle slowly, 7-8 times per minute, 10 to 20 times each time, two times a day training.