Adult male and female vital capacity

When we usually check our bodies, we often test our lung capacity. Lung capacity can detect the development of the lungs. However, we all know that everyone's physique and living habits are different. The body structure of men and women is very different, so the lung capacity of men and women is also different. Only after we distinguish them well can we make a better judgment on our own lung conditions. Let's take a look at the lung capacity of adult men and women.

Vital capacity of adult men and women

The lung capacity of an adult male is about 3500 ml, and that of an adult female is about 2500 ml. The lung capacity of middle-aged people is the largest, while that of young and elderly people is smaller.

The better the health of a person, the greater his lung capacity. Lung tissue damage such as tuberculosis, pulmonary fibrosis, atelectasis or lobectomy to a certain extent may reduce lung capacity. Kyphosis, pleural thickening, exudative pleurisy or pneumothorax may also limit lung expansion and reduce lung capacity.

Therefore, a significant decrease in vital capacity is a manifestation of restrictive ventilation disorder. Since the measurement method of vital capacity is simple and has good repeatability, it is a commonly used indicator in health examinations. Because vital capacity measurement does not limit the exhalation speed, it cannot detect diseases of respiratory tract ventilation obstruction. Therefore, the timed spirometry method is more ideal as a dynamic indicator of lung function.

Timed vital capacity is the maximum inhalation followed by the fastest exhalation until the exhalation is complete. At the same time, record the exhaled volume at the end of 1, 2, and 3 seconds respectively. A normal person should exhale 83%, 96% and 99% of his or her lung capacity respectively. People with obstructive pulmonary disease often need 5 to 6 seconds or more to exhale all their lung capacity; in many pathological conditions where respiratory movement is limited, the lung capacity in the first second increases, and the entire lung capacity can be exhaled ahead of time.

The above is an introduction to the lung capacity of adult men and women. After understanding it, we will be able to make timely judgments when testing lung capacity. In addition, people with low lung capacity are advised to do more physical exercises, such as running or swimming, which can greatly improve lung capacity, and avoid smoking and drinking excessively.