Cardiac Autonomic and Physiological Responses to Moderate- intensity Exercise in Hypoxia; International Journal of Sports Medicine; Vol. 40, iss. 14
| Parent link: | International Journal of Sports Medicine Vol. 40, iss. 14.— 2019.— [P. 886-896] |
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| Korporativní autor: | |
| Další autoři: | , , , , , , , , |
| Shrnutí: | Title screen Exercise physiological responses can be markedly affected by acute hypoxia. We investigated cardiac autonomic and physiological responses to different hypoxic training protocols. Thirteen men performed three exercise sessions (5?5-min; 1-min passive recovery): normoxic exercise at 80% of the power output (PO) at the first ventilatory threshold (N), hypoxic exercise (FiO2=14.2%) with the same PO as N (HPO) and hypoxic exercise at the same heart rate (HR) as N (HHR). PO was lower in HHR (21.1±9.3%) compared to N and HPO. Mean HR was higher in HPO (154±11?bpm, p<0.01) than N and HHR (139±10 vs. 138±9?bpm; p=0.80). SpO2 was reduced (p<0.01) to a similar extent (p>0.05) in HPO and HHR compared to N. HR recovery (HRR) and HR variability indices were similar in N and HHR (p>0.05) but reduced in HPO (p<0.05), mirroring a delayed parasympathetic reactivation. Blood lactate and ventilation were similar in N and HHR (p>0.05) and increased in HPO (p<0.001). During recovery oxygen consumption and ventilation were similar in N and HHR (p>0.05) and increased in HPO (p<0.01). Moderate HR-matched hypoxic exercise triggers similar cardiac autonomic and physiological responses to normoxic exercise with a reduced mechanical load. On the contrary, the same absolute intensity exercise in hypoxia is associated with increased exercise-induced metabolic stress and delayed cardiac autonomic recovery. Режим доступа: по договору с организацией-держателем ресурса |
| Jazyk: | angličtina |
| Vydáno: |
2019
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| Témata: | |
| On-line přístup: | https://doi.org/10.1055/a-1015-0647 |
| Médium: | Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662470 |
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| 200 | 1 | |a Cardiac Autonomic and Physiological Responses to Moderate- intensity Exercise in Hypoxia |f A. Fornasiero, S. Skafidas, F. Stella [et al.] | |
| 203 | |a Текст |c электронный | ||
| 300 | |a Title screen | ||
| 330 | |a Exercise physiological responses can be markedly affected by acute hypoxia. We investigated cardiac autonomic and physiological responses to different hypoxic training protocols. Thirteen men performed three exercise sessions (5?5-min; 1-min passive recovery): normoxic exercise at 80% of the power output (PO) at the first ventilatory threshold (N), hypoxic exercise (FiO2=14.2%) with the same PO as N (HPO) and hypoxic exercise at the same heart rate (HR) as N (HHR). PO was lower in HHR (21.1±9.3%) compared to N and HPO. Mean HR was higher in HPO (154±11?bpm, p<0.01) than N and HHR (139±10 vs. 138±9?bpm; p=0.80). SpO2 was reduced (p<0.01) to a similar extent (p>0.05) in HPO and HHR compared to N. HR recovery (HRR) and HR variability indices were similar in N and HHR (p>0.05) but reduced in HPO (p<0.05), mirroring a delayed parasympathetic reactivation. Blood lactate and ventilation were similar in N and HHR (p>0.05) and increased in HPO (p<0.001). During recovery oxygen consumption and ventilation were similar in N and HHR (p>0.05) and increased in HPO (p<0.01). Moderate HR-matched hypoxic exercise triggers similar cardiac autonomic and physiological responses to normoxic exercise with a reduced mechanical load. On the contrary, the same absolute intensity exercise in hypoxia is associated with increased exercise-induced metabolic stress and delayed cardiac autonomic recovery. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t International Journal of Sports Medicine | ||
| 463 | |t Vol. 40, iss. 14 |v [P. 886-896] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a heart rate recovery - hypoxia - post-exercise recovery | |
| 610 | 1 | |a hypoxic exercise - cardiac autonomic activity | |
| 610 | 1 | |a восстановление | |
| 610 | 1 | |a сердечные ритмы | |
| 610 | 1 | |a гипоксия | |
| 701 | 1 | |a Fornasiero |b A. |g Alessandro | |
| 701 | 1 | |a Skafidas |b S. |g Spyros | |
| 701 | 1 | |a Stella |b F. |g Federico | |
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| 701 | 1 | |a Pellegrini |b B. |g Barbara | |
| 701 | 1 | |a Schena |b F. |g Federico | |
| 701 | 1 | |a Mourot |b L. |c specialist in the field of physical training and sports |c Senior Researcher of Tomsk Polytechnic University, Candidate of philological sciences |f 1977- |g Laurent |3 (RuTPU)RU\TPU\pers\41001 |9 21371 | |
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