Features of physical performance in athletes without and with signs of chronic fatigue
Main Article Content
Abstract
The article is devoted to the study of the peculiarities of physical performance in sportsmen without and with signs of chronic fatigue (CF). The examinations were attended by 22 athletes - track and field athletes, members of the national teams of Ukraine in long-distance running, who were divided into two groups: the first - 12 athletes without signs of CF, the second - 10 athletes with signs of initial and severe CF. The content of the research included: determination of the gas composition of exhaled and alveolar air, pulmonary ventilation and its components during work on a bicycle ergometer with minute-by-minute gradually increasing power from 50 to 250 W for 5 minutes and during the recovery period. The contribution of aerobic and anaerobic components to energy metabolism was calculated. It was determined that the power of aerobic processes in sportsmen without signs of CF was 10.3% higher than in sportsmen with signs of CF. At the same time the power of anaerobic processes in them was by 11,9 % lower The oxygen demand for work, its oxygen cost, oxygen debt (alactate and lactate fractions) in sportsmen without signs of CF were significantly lower than in sportsmen with such signs, but the percentage ratios of oxygen demand for work and oxygen debt in them were practically the same. In athletes with signs of CF there was an increase in the relative contribution of anaerobic metabolism to the overall energy supply system of the body. Perhaps this was due to the fact that against the background of a decrease in the power of aerobic processes in athletes with signs of CF, the power of anaerobic processes increases as a compensation for energy needs. As a result, the relative contribution of anaerobic metabolism to the overall energy supply system of the body increases in such athletes, which helps to maintain their physical performance at a sufficiently high level, but at the expense of less economical reactions of the body to physical activity (the phenomenon of “hidden” fatigue). These changes in the restructuring of energy supply of physical performance can be considered as one of the mechanisms of compensation of energy needs of the organism of sportsmen with signs of CF, and also recommended as one of the informative indicators of CF formation.
Article Details
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
AGREEMENT ABOUT TRANSMISSION OF COPYRIGHT
I, the author of the article / We, the authors of the manuscript _______________________________________________________________________
in case of its acceptance for publication, we transfer the following rights to the founders and editorial boards of the scientific publication "Cherkasy University Bulletin: Biological Sciences Series":
1. Publication of this article in Ukrainian (English) and distribution of its printed version.
2. Dissemination of the electronic version of the article through any electronic means (placing on the official journal web site, in electronic databases, repositories, etc.). At the same time we reserve the right without consent of the editorial board and the founders:
1. Use the materials of the article in whole or in part for educational purposes.
2. To use the materials of the article in whole or in part for writing your own theses.
3. Use article materials to prepare Summarys, conference reports, and oral presentations.
4. Post electronic copies of the article (including the final electronic version downloaded from the journal's official website) to:
a. personal web-pecypcax of all authors (web sites, web pages, blogs, etc.);
b. web-pecypcax of the institutions where the authors work (including electronic institutional repositories);
with. non-profit, open-source web-pecypcax (such as arXiv.org).
With this agreement, we also certify that the submitted manuscript meets the following criteria:
1. Does not contain calls for violence, incitement of racial or ethnic enmity, which are disturbing, threatening, shameful, libelous, cruel, indecent, vulgar, etc.
2. Does not infringe the copyrights and intellectual property rights of others or organizations; contains all the references to the cited authors and / or publications envisaged by applicable copyright law, as well as the results and facts used in the article by other authors or organizations.
3. It has not been previously published in other publishers and has not been published in other publications.
4. Does not include materials that are not subject to publication in the open press, in accordance with applicable law.
____________________ ___________________
First name, Last name, signature of the author
"___" __________ 20__
References
Ровний А.С., Ільїн В.М., Лізогуб В.С., Ровна О.О. Фізіологія спортивної діяльності. Xарків: ХНАДУ, 2015. 556 с. ISBN 978-617-7492-20-6
Steinacker J. M., Lehman M. (2002). Clinical findings and mechanisms of stress and recovery in athletes.
Enhancing recovery: Preventing underperformance in athletes / ed. by M. Kellman. Champaign, IL: Human Kinetics. 103–118.
Ilyin V., Filippov M., Vynohradov V. (2024) Prevalence of chronic fatigue and chronic fatigue syndrome in ukrainian elite athletes: results from a population-based study. Вісник Черкаського університету: серія біологічні науки (1). 7-17. https://doi.org/10.31651/2076-5835-2018-1-2024-1-7-17
Jaffee M. S., Winter W. C., Jones, C. C. Ling G. (2015). Sleep sturbances in athletic concussion. Brain Injury. 29 (2). 221–227. doi:10.3109/02699052.2014.983978
Vynohradov V., et al. (2022) "Influence of Taping on Athletes’ Psychomotor Abilities in Sprint." Journal of Human Sport and Exercise, 17(2), 446-456. doi:10.14198/jhse.2022.172.19
Blackwood S. K., MacHale S. M., Power M. J., Goodwin G. M., Lawrie S.M. (1998). Effects of exercise on cognitive and motor function in chronic fatigue syndrome and depression. Journal of Neurology, Neurosurgery & Psychiatry. (65). 541–546. doi:10.1136/jnnp.65.4.541
Paul L., Wood L., Behan W.M., Maclaren W.M. (1999). Demonstration of delayed recovery from fatiguing exercise in chronic fatigue syndrome. European Journal of Neurology. (6). 63–69. doi:10.1046/j.1468-1331.1999.610063.x
Bazelmans E., Bleijenberg, van der Meer J.W., Folgering H. (2001). Is physical deconditioning a perpetuating factor in chronic fatigue syndrome? A controlled study on maximal exercise performance and relations with fatigue, impairment and physical activity. Psychological Medicine. (31). 107–114. doi:10.1017/s0033291799003189
White P., Thomas J., Kangro H., Bruce-Jones W., Amess J., Crawford D., Grover S., Clare A. (2001). Predictions and associations of fatigue syndromes and mood disorders that occur after infectious mononucleosis. Lancet. (9297). 1946-54. doi: 10.1016/S0140-6736(01)06961-6.