The respiratory system plays a vital role in providing the body with oxygen and removing carbon dioxide. The functional state of the respiratory system changes throughout life and depends on age, physical activity level, health, and environmental influences. During childhood, the respiratory system actively develops and matures, reaching its peak performance in adulthood, and gradually declining in functionality in old age. The aim of this study is to analyze the functional state of the respiratory system in individuals of different age groups. This paper examines physiological changes in the respiratory system, external respiration parameters, and the influence of age-related factors on vital capacity and other respiratory parameters. The results of the study demonstrate that age is a key factor determining respiratory system functionality. The data obtained can be used in medicine, physiology, and sports practice to assess health and prevent respiratory diseases.

respiratory system, age-related characteristics, vital capacity, external respiration, respiratory physiology, functional state.

Сапин М.Р. Анатомия человека. — Москва: ГЭОТАР-Медиа, 2019.

Агаджанян Н.А. Физиология человека. — Москва: Медицина, 2017.

Смирнов В.М. Физиология дыхания. — Санкт-Петербург: СпецЛит, 2016.

Hall J.E. Guyton and Hall Textbook of Medical Physiology. — Philadelphia: Elsevier, 2020.

West J.B. Respiratory Physiology: The Essentials. — Philadelphia: Lippincott Williams & Wilkins, 2018.