The state of the respiratory system of female students by the seasons of the year

Abstract

The paper describes the state of the respiratory system of female students by the seasons of the year. According to the assessment of the research results, it can be concluded that the average level of respiratory capacity, expiratory reserve volume, and vital capacity of the lungs undergoes a significant increase, starting from spring and in the sequence of summer, autumn and winter period of the year, while the breathing rhythm slightly decreases. The respiratory rate is maximum at 22.8 breaths per minute in spring and minimum at 17.4 in winter. The respiratory capacity, increasing significantly, reaches the highest value of 0.58 l (P ˂ 0.001) in the winter period of the year, compared to 0.36 l in spring. The inspiratory reserve volume value fluctuates in both directions, reaching 1.22 l in summer and 1.08 l in spring. The average level of expiratory reserve volume has a minimum value of 1.49 liters in spring, while it is higher in other seasons. The vital capacity index is significantly higher in all seasons of the year compared to the spring period. Thus, its value in winter was 4.02 l, and in spring - 2.93. The pulmonary minute volume value is also maximum in the winter period of the year (10.01 l) and minimum in the spring (8.17 l).