Dynamic Characteristics of External Respiration Function in Cross-Country Skiers in the Annual Cycle

Authors

DOI:

https://doi.org/10.37482/2687-1491-Z124

Keywords:

dynamic characteristics of external respiration function, annual cycle, cross-country skiers, Komi Republic

Abstract

The training process in winter sports is significantly modulated by weather factors, which has a direct or indirect impact on how fast one gets into the required shape and on competition success. In male crosscountry skiers, the volumetric characteristics of external respiration function (ERF) have been investigated extensively; at the same time, no research into this function’s dynamic characteristics is available. The aim of this paper was to study the dynamic characteristics of ERF in cross-country skiers in the annual cycle. Materials and methods. ERF was evaluated monthly using the microprocessor spirograph SPM-01-R-D. The measurements were taken in male cross-country skiers (age: 20.2 ± 0.6 years, height: 175.9 ± 0.6 cm, body weight: 69.4 ± 0.7 kg, maximal oxygen uptake: 4.393 ± 0.433 l/min), members of the national teams of the Komi Republic and Russia that have been living in the European North of Russia (62°N) almost from birth. Results. The study revealed that the dynamic indicators of ERF in cross-country skiers of the Komi Republic are characterized by higher numerical values compared to those in male non-athletes. Peak expiratory flow in cross-country skiers, while being higher than that in non-athletes, had a statistically significant annual dynamics, which repeated the pattern of the annual drift of this indicator in men not involved in sports. Minimal expiratory flow in cross-country skiers was primarily observed in August–November, while maximal, in December–January. The greatest deviation from the due values (by 37.4 %) was characteristic of the airflow velocity in the small bronchi. Thus, ERF indicators in male cross-country skiers have an annual drift and, in terms of numerical values, exceed most of the indicators in non-athletes.

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Author Biography

Nina G. Varlamova, Institute of Physiology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences

Syktyvkar, Komi Republic, Russian Federation

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Published

2023-01-26

How to Cite

Varlamova Н., Parshukova О., Kudinova А., & Boyko Е. (2023). Dynamic Characteristics of External Respiration Function in Cross-Country Skiers in the Annual Cycle. Journal of Medical and Biological Research, 11(1), 5–13. https://doi.org/10.37482/2687-1491-Z124