Sexual dimorphism in the neuro-endocrine regulation of bicycle ergometric test parameters in untrained individuals with dysfunction of the neuro-endocrine-immune complex
Background. Ergometric physical working capacity (PWC) testing has a long tradition in occupational medicine. PWC can be tested, using performance indicators like VO2max or the mechanical power. However, the calculated by bicycle ergometry PWC in reality reflects the reaction of the autonomic nervo...
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| Format: | Article |
| Language: | English |
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Kazimierz Wielki University
2022-09-01
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| Series: | Journal of Education, Health and Sport |
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| Online Access: | https://apcz.umk.pl/JEHS/article/view/40854 |
| _version_ | 1811312446112006144 |
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| author | Sofiya Ruzhylo Oksana Fihura Nataliya Zakalyak Galyna Kovalchuk Xawery Żukow Dariya Popovych |
| author_facet | Sofiya Ruzhylo Oksana Fihura Nataliya Zakalyak Galyna Kovalchuk Xawery Żukow Dariya Popovych |
| author_sort | Sofiya Ruzhylo |
| collection | DOAJ |
| description |
Background. Ergometric physical working capacity (PWC) testing has a long tradition in occupational medicine. PWC can be tested, using performance indicators like VO2max or the mechanical power. However, the calculated by bicycle ergometry PWC in reality reflects the reaction of the autonomic nervous system to muscle load, which, in turn, is strong, but still not absolutely complete, correlates with VO2max as a real indicator of cardiorespiratory fitness. The purpose of this study is to clarify the relationship between PWC, calculated based on the result of two-stage bicycle ergometry, and the parameters of neuro-endocrine regulation as well as sexual differences in such relationships. Materials and Methods. The object of observation were 30 women 29-76 (49,4±11,0) years and 30 men 24-69 (47,4±12,0) years without a clinical diagnosis, but with the deviations from the norm in a number of parameters of the neuro-endocrine-immune complex as a manifestation of maladaptation. For estimation of PWC a two-stage bicycle ergometry used. Parameters of EEG, HRV and adaptation hormones levels registered twice with an interval of 4 or 7 days. Results. In men, PWC correlates negatively with plasma levels of cortisol (r=-0,52) and triiodothyronine (r=-0,47), but positively with levels of calcitonin (r=0,25) and testosterone (r=0,22). The coefficient of multiple correlation R=0,705. In women, the correlation of the twice lower PWC with cortisol and calcitonin is weaker (r=-0,31 and 0,18, respectively), and is absent with testosterone and triiodothyronine, instead it was found in relation to aldosterone (r=-0,24); R=0,394. The PWC regression model for men includes 6 HRV and 11 EEG parameters (R=0,846), while for women only the mode HRV (r=-0,56) and two EEG parameters (R=0,608). Conclusion. PWC levels in men are generally downregulated by cortisol, triiodothyronine, sympathetic tone, and θ-rhythm generating neurons, but upregulated by testosterone, calcitonin, vagal tone, and related α-rhythm generating neurons. In women, PWC levels are borderline downregulated by cortisol and aldosterone, but significantly upregulated by circulating catecholamines and β-rhythm generating neurons.
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| first_indexed | 2024-04-13T10:37:30Z |
| format | Article |
| id | doaj.art-c6e52bc74a69428797eb3b01deacf465 |
| institution | Directory Open Access Journal |
| issn | 2391-8306 |
| language | English |
| last_indexed | 2024-04-13T10:37:30Z |
| publishDate | 2022-09-01 |
| publisher | Kazimierz Wielki University |
| record_format | Article |
| series | Journal of Education, Health and Sport |
| spelling | doaj.art-c6e52bc74a69428797eb3b01deacf4652022-12-22T02:50:02ZengKazimierz Wielki UniversityJournal of Education, Health and Sport2391-83062022-09-0112910.12775/JEHS.2022.12.09.110Sexual dimorphism in the neuro-endocrine regulation of bicycle ergometric test parameters in untrained individuals with dysfunction of the neuro-endocrine-immune complexSofiya Ruzhylo0Oksana Fihura1Nataliya Zakalyak2Galyna Kovalchuk3Xawery Żukow4Dariya Popovych5Ivan Franko Pedagogical University, DrohobychIvan Franko Pedagogical University, DrohobychIvan Franko Pedagogical University, DrohobychIvan Franko Pedagogical University, DrohobychMedical University of Bialystok, BialystokIY Horbachevs’kyi National Medical University, Ternopil’ Background. Ergometric physical working capacity (PWC) testing has a long tradition in occupational medicine. PWC can be tested, using performance indicators like VO2max or the mechanical power. However, the calculated by bicycle ergometry PWC in reality reflects the reaction of the autonomic nervous system to muscle load, which, in turn, is strong, but still not absolutely complete, correlates with VO2max as a real indicator of cardiorespiratory fitness. The purpose of this study is to clarify the relationship between PWC, calculated based on the result of two-stage bicycle ergometry, and the parameters of neuro-endocrine regulation as well as sexual differences in such relationships. Materials and Methods. The object of observation were 30 women 29-76 (49,4±11,0) years and 30 men 24-69 (47,4±12,0) years without a clinical diagnosis, but with the deviations from the norm in a number of parameters of the neuro-endocrine-immune complex as a manifestation of maladaptation. For estimation of PWC a two-stage bicycle ergometry used. Parameters of EEG, HRV and adaptation hormones levels registered twice with an interval of 4 or 7 days. Results. In men, PWC correlates negatively with plasma levels of cortisol (r=-0,52) and triiodothyronine (r=-0,47), but positively with levels of calcitonin (r=0,25) and testosterone (r=0,22). The coefficient of multiple correlation R=0,705. In women, the correlation of the twice lower PWC with cortisol and calcitonin is weaker (r=-0,31 and 0,18, respectively), and is absent with testosterone and triiodothyronine, instead it was found in relation to aldosterone (r=-0,24); R=0,394. The PWC regression model for men includes 6 HRV and 11 EEG parameters (R=0,846), while for women only the mode HRV (r=-0,56) and two EEG parameters (R=0,608). Conclusion. PWC levels in men are generally downregulated by cortisol, triiodothyronine, sympathetic tone, and θ-rhythm generating neurons, but upregulated by testosterone, calcitonin, vagal tone, and related α-rhythm generating neurons. In women, PWC levels are borderline downregulated by cortisol and aldosterone, but significantly upregulated by circulating catecholamines and β-rhythm generating neurons. https://apcz.umk.pl/JEHS/article/view/40854bicycle ergometryEEGHRVadaptation hormonesrelationshipssexual dimorphism |
| spellingShingle | Sofiya Ruzhylo Oksana Fihura Nataliya Zakalyak Galyna Kovalchuk Xawery Żukow Dariya Popovych Sexual dimorphism in the neuro-endocrine regulation of bicycle ergometric test parameters in untrained individuals with dysfunction of the neuro-endocrine-immune complex Journal of Education, Health and Sport bicycle ergometry EEG HRV adaptation hormones relationships sexual dimorphism |
| title | Sexual dimorphism in the neuro-endocrine regulation of bicycle ergometric test parameters in untrained individuals with dysfunction of the neuro-endocrine-immune complex |
| title_full | Sexual dimorphism in the neuro-endocrine regulation of bicycle ergometric test parameters in untrained individuals with dysfunction of the neuro-endocrine-immune complex |
| title_fullStr | Sexual dimorphism in the neuro-endocrine regulation of bicycle ergometric test parameters in untrained individuals with dysfunction of the neuro-endocrine-immune complex |
| title_full_unstemmed | Sexual dimorphism in the neuro-endocrine regulation of bicycle ergometric test parameters in untrained individuals with dysfunction of the neuro-endocrine-immune complex |
| title_short | Sexual dimorphism in the neuro-endocrine regulation of bicycle ergometric test parameters in untrained individuals with dysfunction of the neuro-endocrine-immune complex |
| title_sort | sexual dimorphism in the neuro endocrine regulation of bicycle ergometric test parameters in untrained individuals with dysfunction of the neuro endocrine immune complex |
| topic | bicycle ergometry EEG HRV adaptation hormones relationships sexual dimorphism |
| url | https://apcz.umk.pl/JEHS/article/view/40854 |
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