2018
DOI: 10.13037/ras.vol16n55.4674
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Respostas Da Frequência Cardíaca Ao Exercício Resistido E Sua Relação Com a Variabilidade Da Frequência Cardíaca Em Indivíduos Com Fatores De Risco Para Doenças Cardiovasculares

Abstract: Introdução: A ação dos ramos simpático e parassimpático do sistema nervoso autônomo (SNA) sobre o coração promove aumento e diminuição, respectivamente, da frequência cardíaca (FC). A variação da FC na transição repouso-exercício pode indicar como se comporta o sistema nervoso parassimpático nos segundos iniciais do esforço, já que ocorre inibição da modulação vagal como resposta inicial da FC no exercício. Uma variabilidade da frequência cardíaca (VFC) reduzida na condição basal pode indicar adaptação inefica… Show more

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“…Due to its ease of measurement, the behavior of HR has been widely studied in different conditions at rest and during exercise 8, 11,12 . Although they are not definitely proved, the evidences suggest that the changes resulting from the SAH trigger in the individual an imbalance in cold-vagal balance with increase from the first in relation to the second, modifying the variability in heart rate and blood pressure control 13.14 . It is suspected that these changes are associated with the increase in sympathetic activity in the vascular bed, occurring in situations of hypertension 15.16 .…”
Section: Introductionmentioning
confidence: 99%
“…Due to its ease of measurement, the behavior of HR has been widely studied in different conditions at rest and during exercise 8, 11,12 . Although they are not definitely proved, the evidences suggest that the changes resulting from the SAH trigger in the individual an imbalance in cold-vagal balance with increase from the first in relation to the second, modifying the variability in heart rate and blood pressure control 13.14 . It is suspected that these changes are associated with the increase in sympathetic activity in the vascular bed, occurring in situations of hypertension 15.16 .…”
Section: Introductionmentioning
confidence: 99%