Doctor of Sciences (Medicine), Professor Department of biology, Volgograd State University

Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation

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Student, Department of Biology, Volgograd State University

Prosp. Universitetskij, 100, 400062 Volgograd, Russian Federation

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Student, Department of Biology, Volgograd State University

Prospekt Universitetskij, 100, 400062 Volgograd, Russian Federation

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Abstract. Studies of the functional state of the respiratory system have been widely used to assess the adaptive reserves of the human body. The functional state of the respiratory system is closely related to the functional characteristics of systemic and regional hemodynamics, functional reserves of the blood system. With     changes in the social status of a person, the adaptive potential of his body can significantly decrease. Reliable markers of the limitations of adaptive potential in people of different ages are the decrease in the values of the main pulmonary volumes in the conditions of physiological rest and when performing test load tests. The negative dynamics of forced expirations due to the decrease in the strength of the auxiliary respiratory muscles and changing depending on age was established. The presence of this undesirable phenomenon can be a marker of reducing adaptation reserves in the study of the impact of environmental factors on the phenomenon of premature aging.

Key words: respiratory system, spirometry, forced expirations, pulmonary volumes, vital capacity of lungs, premature aging.