Cardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise

Viviane Santos López Droguett,1 Amilton da Cruz Santos,2 Carlos Eduardo de Medeiros,2 Douglas Porto Marques,2 Leone Severino do Nascimento,2 Maria do Socorro Brasileiro-Santos2 1Department of Pathology, Federal University of Pernambuco, Recife, Pernambuco, Brazil; 2Department of Physical...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Droguett VS, Santos AC, Medeiros CE, Marques DP, Nascimento LS, Brasileiro-Santos MS
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2015
Materias:	Heart Rate. Autonomic Nervous System. Exercise. Geriatrics RC952-954.6
Acceso en línea:	https://doaj.org/article/63db3e9c40cc41c9a3dac576ec095b5b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:63db3e9c40cc41c9a3dac576ec095b5b
record_format	dspace
spelling	oai:doaj.org-article:63db3e9c40cc41c9a3dac576ec095b5b2021-12-02T05:52:31ZCardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise1178-1998https://doaj.org/article/63db3e9c40cc41c9a3dac576ec095b5b2015-01-01T00:00:00Zhttps://www.dovepress.com/cardiac-autonomic-modulation-in-healthy-elderly-after-different-intens-peer-reviewed-article-CIAhttps://doaj.org/toc/1178-1998Viviane Santos López Droguett,1 Amilton da Cruz Santos,2 Carlos Eduardo de Medeiros,2 Douglas Porto Marques,2 Leone Severino do Nascimento,2 Maria do Socorro Brasileiro-Santos2 1Department of Pathology, Federal University of Pernambuco, Recife, Pernambuco, Brazil; 2Department of Physical Education, Federal University of Paraiba, João Pessoa, Paraiba, BrazilPurpose: To investigate the heart rate (HR) and its autonomic modulation at baseline and during dynamic postexercise (PEX) with intensities of 40% and 60% of the maximum HR in healthy elderly.Methods: This cross-sectional study included ten apparently healthy people who had been submitted to a protocol on a cycle ergometer for 35 minutes. Autonomic modulation was evaluated by spectral analysis of HR variability (HRV).Results: A relevant increase in HR response was observed at 15 minutes postexercise with intensities of 60% and 40% of the maximum HR (10±2 bpm versus 5±1 bpm, respectively; P=0.005), and a significant reduction in HRV was also noted with 40% and 60% intensities during the rest period, and significant reduction in HRV (RR variance) was also observed in 40% and 60% intensities when compared to the baseline, as well as between the post-exercise intensities (1032±32 ms versus 905±5 ms) (P<0.001). In the HRV spectral analysis, a significant increase in the low frequency component HRV and autonomic balance at 40% of the maximum HR (68±2 normalized units [nu] versus 55±1 nu and 2.0±0.1 versus 1.2±0.1; P<0.001) and at 60% of the maximum HR (77±1 nu versus 55±1 nu and 3.2±0.1 versus 1.2±0.1 [P<0.001]) in relation to baseline was observed. A significant reduction of high frequency component at 40% and 60% intensities, however, was observed when compared to baseline (31±2 nu and 23±1 nu versus 45±1 nu, respectively; P<0.001). Moreover, significant differences were observed for the low frequency and high frequency components, as well as for the sympathovagal balance between participants who reached 40% and 60% of the maximum HR.Conclusion: There was an increase in the HR, sympathetic modulation, and sympathovagal balance, as well as a reduction in vagal modulation in the elderly at both intensities of the PEX. Keywords: heart rate, autonomic nervous system, exerciseDroguett VSSantos ACMedeiros CEMarques DPNascimento LSBrasileiro-Santos MSDove Medical PressarticleHeart Rate. Autonomic Nervous System. Exercise.GeriatricsRC952-954.6ENClinical Interventions in Aging, Vol Volume 10, Pp 203-208 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Heart Rate. Autonomic Nervous System. Exercise. Geriatrics RC952-954.6
spellingShingle	Heart Rate. Autonomic Nervous System. Exercise. Geriatrics RC952-954.6 Droguett VS Santos AC Medeiros CE Marques DP Nascimento LS Brasileiro-Santos MS Cardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise
description	Viviane Santos López Droguett,1 Amilton da Cruz Santos,2 Carlos Eduardo de Medeiros,2 Douglas Porto Marques,2 Leone Severino do Nascimento,2 Maria do Socorro Brasileiro-Santos2 1Department of Pathology, Federal University of Pernambuco, Recife, Pernambuco, Brazil; 2Department of Physical Education, Federal University of Paraiba, João Pessoa, Paraiba, BrazilPurpose: To investigate the heart rate (HR) and its autonomic modulation at baseline and during dynamic postexercise (PEX) with intensities of 40% and 60% of the maximum HR in healthy elderly.Methods: This cross-sectional study included ten apparently healthy people who had been submitted to a protocol on a cycle ergometer for 35 minutes. Autonomic modulation was evaluated by spectral analysis of HR variability (HRV).Results: A relevant increase in HR response was observed at 15 minutes postexercise with intensities of 60% and 40% of the maximum HR (10±2 bpm versus 5±1 bpm, respectively; P=0.005), and a significant reduction in HRV was also noted with 40% and 60% intensities during the rest period, and significant reduction in HRV (RR variance) was also observed in 40% and 60% intensities when compared to the baseline, as well as between the post-exercise intensities (1032±32 ms versus 905±5 ms) (P<0.001). In the HRV spectral analysis, a significant increase in the low frequency component HRV and autonomic balance at 40% of the maximum HR (68±2 normalized units [nu] versus 55±1 nu and 2.0±0.1 versus 1.2±0.1; P<0.001) and at 60% of the maximum HR (77±1 nu versus 55±1 nu and 3.2±0.1 versus 1.2±0.1 [P<0.001]) in relation to baseline was observed. A significant reduction of high frequency component at 40% and 60% intensities, however, was observed when compared to baseline (31±2 nu and 23±1 nu versus 45±1 nu, respectively; P<0.001). Moreover, significant differences were observed for the low frequency and high frequency components, as well as for the sympathovagal balance between participants who reached 40% and 60% of the maximum HR.Conclusion: There was an increase in the HR, sympathetic modulation, and sympathovagal balance, as well as a reduction in vagal modulation in the elderly at both intensities of the PEX. Keywords: heart rate, autonomic nervous system, exercise
format	article
author	Droguett VS Santos AC Medeiros CE Marques DP Nascimento LS Brasileiro-Santos MS
author_facet	Droguett VS Santos AC Medeiros CE Marques DP Nascimento LS Brasileiro-Santos MS
author_sort	Droguett VS
title	Cardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise
title_short	Cardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise
title_full	Cardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise
title_fullStr	Cardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise
title_full_unstemmed	Cardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise
title_sort	cardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise
publisher	Dove Medical Press
publishDate	2015
url	https://doaj.org/article/63db3e9c40cc41c9a3dac576ec095b5b
work_keys_str_mv	AT droguettvs cardiacautonomicmodulationinhealthyelderlyafterdifferentintensitiesofdynamicexercise AT santosac cardiacautonomicmodulationinhealthyelderlyafterdifferentintensitiesofdynamicexercise AT medeirosce cardiacautonomicmodulationinhealthyelderlyafterdifferentintensitiesofdynamicexercise AT marquesdp cardiacautonomicmodulationinhealthyelderlyafterdifferentintensitiesofdynamicexercise AT nascimentols cardiacautonomicmodulationinhealthyelderlyafterdifferentintensitiesofdynamicexercise AT brasileirosantosms cardiacautonomicmodulationinhealthyelderlyafterdifferentintensitiesofdynamicexercise
_version_	1718400174239252480

Cardiac autonomic modulation in healthy elderly after different intensities of dynamic exercise

Ejemplares similares