The downward slopes of MEFV curve are Vmax50%/Vmax25% and △MEF/△V, that is, FEF60-FEF40/△V, also known as the slope of medium flow curve.
Constant flow: Breathing helium-oxygen mixture is higher than breathing air, and Vmax increases at higher lung capacity. VisoV/VC_25%, that is, the constant flow is small.
Closed volume (CV) Closed volume (CV)/ vital capacity (VC): Male: 0.3856× age-2.35438+0; Female: 0.3569× age -0.688. Closed volume (CV)/ total lung volume (TLC): male: 0.4988× age+14.7662; Female: 0.29 13× age +27.3905.
Extended data:
Aerobic exercise can exercise cardiopulmonary function. Generally speaking, moderate exercise with the highest heart rate of 60% to 70% (that is, 220 MINUS a person's age) has the best fat-reducing effect.
40% of energy consumption in exercise comes from fat and 60% is carbohydrate. If you want to exercise cardiopulmonary function, you need to do strenuous exercise with a maximum heart rate of more than 70%. At this time, the energy consumption is 90% carbohydrate, 10% fat.
For example, obese people need to exercise to lose fat. Although strenuous exercise consumes a lot of calories, it is not suitable for rushing to do too strenuous exercise at first, because their cardiopulmonary function can't cope; Or it is necessary to reduce fat through moderate exercise and improve the basic cardiopulmonary function, and then gradually lose weight, so as to enhance the amount of exercise, exercise cardiopulmonary function and further improve the effect of reducing fat. ?
Most people don't know what level of their cardiopulmonary function is, so before starting proper exercise and gradually improving their cardiopulmonary function, they must carry out cardiopulmonary function tests to evaluate their physique and physical condition.
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