Is the lung capacity suction mouth effective?

Is the lung capacity suction mouth effective?

As people in modern society pay more and more attention to sports, many friends have deeply realized the meaning of the saying that life lies in sports. Because they see that most of their long-lived friends have developed good exercise habits over a long period of time, many of them hope to improve their lung capacity. So is the lung capacity suction mouth effective? In response to this question raised by everyone, I would like to invite my friends to discuss it with me in the next period of time.

We already know that vital capacity is the volume of gas exhaled by a person after making the maximum inhalation and then the maximum exhalation, and the unit is milliliter (m1). Lung capacity is one of the important indicators of body function and is of great importance to the growth of adolescents and their future physical health.

We should pay attention to enhancing our lung capacity. FIG. 2 shows a practical method for measuring vital capacity, in which A is an open thin-walled cylinder inverted in water, and the air therein is exhausted before measurement (i.e., the cylinder is filled with water before measurement). During measurement, the subject takes in enough air and then exhales as much air as possible through B. The exhaled air enters A through the tube, causing A to float. The mass of the cylinder is measured to be m, the cross-sectional area is s, the height of the bottom of the cylinder above the water surface is H, and the atmospheric pressure is po. Find:

1. The volume of the gas in the cylinder at this time.

2. The pressure of the gas in the cylinder at this time.

3. "Vital capacity to weight index" is an important respiratory function index of the human body. It mainly reflects the correlation between vital capacity and weight through the ratio of vital capacity to weight, and is used to conduct objective quantitative comparative analysis of individuals and groups of different ages and genders.

I believe that through the above discussion, our friends have a deeper understanding and cognition of vital capacity nozzles. Of course, what I want to tell you is that although everyone is busy with work now, this greatly reduces the time for outdoor exercise. But this is also an unhealthy lifestyle and attitude, so I hope people can better correct themselves in life.

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