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dc.contributor.authorMorlin, Michelle Teles-
dc.contributor.authorCruz, Carlos Janssen Gomes da-
dc.contributor.authorGuimarães, Freddy Enrique Ramos-
dc.contributor.authorSilva, Renato André Sousa da-
dc.contributor.authorPorto, Luiz Guilherme Grossi-
dc.contributor.authorMolina, Guilherme Eckhardt-
dc.date.accessioned2023-10-19T15:19:55Z-
dc.date.available2023-10-19T15:19:55Z-
dc.date.issued2022-12-30-
dc.identifier.citationMORLIN, Michelle Teles et al. High-intensity interval training combined with different types of exercises on cardiac autonomic function: an analytical cross-sectional Study in CrossFit® athletes. International Journal of Environmental Research and Public Health, v. 20, n. 1, 634, 30 dez. 2022. DOI: https://doi.org/10.3390/ijerph20010634. Disponível em: https://www.mdpi.com/1660-4601/20/1/634. Acesso em: 19 out. 2023.pt_BR
dc.identifier.urihttp://repositorio2.unb.br/jspui/handle/10482/46706-
dc.language.isoengpt_BR
dc.publisherMDPIpt_BR
dc.rightsAcesso Abertopt_BR
dc.titleHigh-intensity interval training combined with different types of exercises on cardiac autonomic function : an analytical cross-sectional Study in CrossFit® athletespt_BR
dc.typeArtigopt_BR
dc.subject.keywordSistema nervoso autônomopt_BR
dc.subject.keywordAtletaspt_BR
dc.subject.keywordTreinamentopt_BR
dc.subject.keywordExercícios físicospt_BR
dc.rights.licenseCopyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).pt_BR
dc.identifier.doihttps://doi.org/10.3390/ijerph20010634pt_BR
dc.description.abstract1t is well established that endurance exercise has positive effects on cardiac autonomic function (CAF). However, there is still a dearth of information about the effects of regular high-intensity interval training combined with different types of exercises (HIITCE) on CAF. Objective: The aim of this study is to compare CAF at rest, its reactivity, and reactivation following maximal exercise testing in HIITCE and endurance athletes. Methods: An observational study was conducted with 34 male athletes of HIITCE (i.e., CrossFit®) [HG: n = 18; 30.6 ± 4.8 years] and endurance athletes (i.e., triathlon) [TG.: n = 16; 32.8 ± 3.6 years]. We analyzed 5 min of frequency-domain indices (TP, LF, HF, LFn, HFn, and LF/HF ratio) of heart rate variability (HRV) in both supine and orthostatic positions and its reactivity after the active orthostatic test. Post-exercise heart rate recovery (HRR) was assessed at 60, 180, and 300 s. Statistical analysis employed a non-parametric test with a p-value set at 5%. Results: The HG showed reduced HFn and increased LFn modulations at rest (supine). Overall cardiac autonomic modulation (TP) at supine and all indices of HRV at the orthostatic position were similar between groups. Following the orthostatic test, the HG showed low reactivity for all HRV indices compared to TG. After the exercise, HRR does not show a difference between groups at 60 s. However, at 180 and 300 s, an impairment of HRR was observed in HG than in TG. Conclusion: At rest (supine), the HG showed reduced parasympathetic and increased sympathetic modulation, low reactivity after postural change, and impaired HRR compared to TG.pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9817-3158pt_BR
dc.contributor.affiliationUniversity of Brasilia, Faculty of Physical Education, Exercise Physiology Laboratorypt_BR
dc.contributor.affiliationSARAH Network of Rehabilitation Hospitalspt_BR
dc.contributor.affiliationGEAFS - Research Group on Physiology and Epidemiology of Exercise and Physical Activitypt_BR
dc.contributor.affiliationUniversity of Brasilia, Faculty of Physical Education, Exercise Physiology Laboratorypt_BR
dc.contributor.affiliationGEAFS - Research Group on Physiology and Epidemiology of Exercise and Physical Activitypt_BR
dc.contributor.affiliationEuro American University Center, Faculty of Physical Education, Laboratory of Physical Performance and Healthypt_BR
dc.contributor.affiliationUniversity of Brasilia, Faculty of Physical Education, Exercise Physiology Laboratorypt_BR
dc.contributor.affiliationGEAFS - Research Group on Physiology and Epidemiology of Exercise and Physical Activitypt_BR
dc.contributor.affiliationGoiano Federal Institute, Campus Morrinhospt_BR
dc.contributor.affiliationEuro American University Center, Faculty of Physical Education, Laboratory of Physical Performance and Healthypt_BR
dc.contributor.affiliationUniversity of Brasilia, Faculty of Physical Education, Exercise Physiology Laboratorypt_BR
dc.contributor.affiliationGEAFS - Research Group on Physiology and Epidemiology of Exercise and Physical Activitypt_BR
dc.contributor.affiliationUniversity of Brasilia, Faculty of Physical Education, Exercise Physiology Laboratorypt_BR
dc.contributor.affiliationGEAFS - Research Group on Physiology and Epidemiology of Exercise and Physical Activitypt_BR
dc.description.unidadeFaculdade de Educação Física (FEF)pt_BR
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