How to exercise with poor cardiopulmonary function? You can go to the gym. Please elaborate.

Poor cardiopulmonary function requires aerobic exercise. Aerobic exercise refers to the physical exercise carried out by the human body under the condition of adequate oxygen supply. That is, in the process of exercise, the oxygen inhaled by the human body is equal to the demand, achieving physiological balance. Simply put, aerobic exercise refers to any rhythmic exercise, which lasts for a long time (about 15 minutes or more) and has moderate or above-average intensity (75% to 85% of the maximum heart rate). Common aerobic exercises include: walking, brisk walking, jogging, skating, swimming, cycling, playing Tai Ji Chuan, doing fitness dance, skipping rope/doing rhythmic gymnastics, basketball, football and other ball games. Aerobic exercise is characterized by low intensity, rhythm, uninterrupted continuity and long time. Compared with explosive anaerobic exercises such as weightlifting, running, high jump, long jump and throwing, aerobic exercise is a continuous exercise, lasting more than 5 minutes, and there is spare capacity. aerobic exercise

The purpose is to enhance cardiopulmonary endurance. During exercise, because muscle contraction needs a lot of nutrition and oxygen, the number of heart contractions increases, and the amount of blood pumped out each time is more than usual. At the same time, the demand for oxygen has also increased, the number of breaths is more than normal, and the degree of lung expansion is also greater. Therefore, when the exercise continues and the muscles contract for a long time, the heart and lungs must strive to provide oxygen to the muscles and take away the waste in the muscles. And this constant demand can improve the endurance of the heart and lungs. With the increase of cardiopulmonary endurance, the body can engage in longer or higher-intensity exercise, and it is less likely to get tired.