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Parshukova OI, Varlamova NG, Potolitsyna NN, et al. Features of Metabolic Support of Physical Performance in Highly Trained Cross-Country Skiers of Different Qualifications during Physical Activity at Maximum Load. Cells. 2021;11(1)doi: 10.3390/cells11010039.
Parshukova, O. I., Varlamova, N. G., Potolitsyna, N. N., Lyudinina, A. Y., & Bojko, E. R. (2021). Features of Metabolic Support of Physical Performance in Highly Trained Cross-Country Skiers of Different Qualifications during Physical Activity at Maximum Load. Cells, 11(1), . https://doi.org/10.3390/cells11010039
Parshukova, Olga I, et al. "Features of Metabolic Support of Physical Performance in Highly Trained Cross-Country Skiers of Different Qualifications during Physical Activity at Maximum Load." Cells vol. 11,1 (2021). doi: https://doi.org/10.3390/cells11010039
Parshukova OI, Varlamova NG, Potolitsyna NN, Lyudinina AY, Bojko ER. Features of Metabolic Support of Physical Performance in Highly Trained Cross-Country Skiers of Different Qualifications during Physical Activity at Maximum Load. Cells. 2021 Dec 23;11(1). doi: 10.3390/cells11010039. PMID: 35011601; PMCID: PMC8750590.
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Cells. 2021 Dec 23;11(1). doi: 10.3390/cells11010039.

Features of Metabolic Support of Physical Performance in Highly Trained Cross-Country Skiers of Different Qualifications during Physical Activity at Maximum Load.

Cells

Olga I Parshukova, Nina G Varlamova, Natalya N Potolitsyna, Aleksandra Y Lyudinina, Evgeny R Bojko

Affiliations

  1. Institute of Physiology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, FRC Komi SC UB RAS, 50 Pervomayskaya Str., 167982 Syktyvkar, Russia.

PMID: 35011601 PMCID: PMC8750590 DOI: 10.3390/cells11010039

Abstract

The purpose of our study was to identify the features of metabolic regulation in highly trained cross-country skiers of different qualifications at different stages of the maximum load test. We examined 124 highly trained cross-country skiers (male, ages 17-24). The group consisted of two subgroups based on their competition performance: 61 nonelite athletes (Group I) and 63 elite athletes (group II), who were current members of the national team of the Komi Republic and Russia. The bicycle ergometer test was performed by using the OxyconPro system (Erich Jaeger, Hoechberg, Germany). All the examined athletes performed the exercise test on a cycle ergometer "until exhaustion". The results of our research indicate that the studied groups of athletes with high, but different levels of sports qualifications are a convenient model for studying the molecular mechanisms of adaptation to physical loads of maximum intensity. Athletes of higher qualifications reveal additional adaptive mechanisms of metabolic regulation, which is manifested in the independence of serum lactate indicators under conditions of submaximal and maximum power from maximal oxygen uptake, and they have an NO-dependent mechanism for regulating lactate levels during aerobic exercise, including work at the anaerobic threshold.

Keywords: arterial blood pressure; cross-country skier; exercise test on a cycle ergometer; heart rate; lactate; nitric oxide; oxygen uptake

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