Cargando…

The Effects of Submaximal and Maximal Exercise on Heart Rate Variability

The purpose of this study was to examine heart rate variability (HRV) at rest, and during submaximal (100 bpm) and maximal exercise in collegiate distance runners. We predicted there would be less HRV during exercise. Eight collegiate runners (19–22 yrs) were recruited for participation. The partici...

Descripción completa

Detalles Bibliográficos
Autores principales: POEHLING, CORY P., LLEWELLYN, TAMRA L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Berkeley Electronic Press 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6355137/
https://www.ncbi.nlm.nih.gov/pubmed/30761192
_version_ 1783391303622459392
author POEHLING, CORY P.
LLEWELLYN, TAMRA L.
author_facet POEHLING, CORY P.
LLEWELLYN, TAMRA L.
author_sort POEHLING, CORY P.
collection PubMed
description The purpose of this study was to examine heart rate variability (HRV) at rest, and during submaximal (100 bpm) and maximal exercise in collegiate distance runners. We predicted there would be less HRV during exercise. Eight collegiate runners (19–22 yrs) were recruited for participation. The participants were equipped with a standard Lead II EKG to record HRV at rest. The participants then performed an incremental VO(2max) test while running on a treadmill. EKG was recorded throughout the exercise test and HRV was later calculated during the submaximal and maximal exercise. To assess HRV the standard deviation of R-R intervals (SDNN) was calculated at rest and during submaximal and maximal exercise. A one-way ANOVA was used to determine HRV differences between these three states. The average R-R interval was 0.961 ± 0.155 s (64 bpm), 0.413 ± 0.018 s (146 bpm), and 0.321 ± 0.008 s (187 bpm) for rest, submaximal, and maximal exercise, respectively. There were significant differences in SDNN from rest to submaximal (0.108 ± 0.055 to 0.008 ± 0.002 s, p < 0.05), and from rest to maximal exercise (0.108 ± 0.055 to 0.006 ± 0.002 s, p < 0.05). When comparing HRV between the resting and exercise states it seems that the parasympathetic nervous system (PNS) influence at rest contributes to greater HRV, whereas the sympathetic nervous system (SNS) influence during both submaximal and maximal exercise corresponds to a reduced HRV. These effects may be related to the enhanced automaticity effects of norepinephrine acting on its B(1) receptor sites in the heart.
format Online
Article
Text
id pubmed-6355137
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Berkeley Electronic Press
record_format MEDLINE/PubMed
spelling pubmed-63551372019-02-11 The Effects of Submaximal and Maximal Exercise on Heart Rate Variability POEHLING, CORY P. LLEWELLYN, TAMRA L. Int J Exerc Sci Original Research The purpose of this study was to examine heart rate variability (HRV) at rest, and during submaximal (100 bpm) and maximal exercise in collegiate distance runners. We predicted there would be less HRV during exercise. Eight collegiate runners (19–22 yrs) were recruited for participation. The participants were equipped with a standard Lead II EKG to record HRV at rest. The participants then performed an incremental VO(2max) test while running on a treadmill. EKG was recorded throughout the exercise test and HRV was later calculated during the submaximal and maximal exercise. To assess HRV the standard deviation of R-R intervals (SDNN) was calculated at rest and during submaximal and maximal exercise. A one-way ANOVA was used to determine HRV differences between these three states. The average R-R interval was 0.961 ± 0.155 s (64 bpm), 0.413 ± 0.018 s (146 bpm), and 0.321 ± 0.008 s (187 bpm) for rest, submaximal, and maximal exercise, respectively. There were significant differences in SDNN from rest to submaximal (0.108 ± 0.055 to 0.008 ± 0.002 s, p < 0.05), and from rest to maximal exercise (0.108 ± 0.055 to 0.006 ± 0.002 s, p < 0.05). When comparing HRV between the resting and exercise states it seems that the parasympathetic nervous system (PNS) influence at rest contributes to greater HRV, whereas the sympathetic nervous system (SNS) influence during both submaximal and maximal exercise corresponds to a reduced HRV. These effects may be related to the enhanced automaticity effects of norepinephrine acting on its B(1) receptor sites in the heart. Berkeley Electronic Press 2019-01-01 /pmc/articles/PMC6355137/ /pubmed/30761192 Text en
spellingShingle Original Research
POEHLING, CORY P.
LLEWELLYN, TAMRA L.
The Effects of Submaximal and Maximal Exercise on Heart Rate Variability
title The Effects of Submaximal and Maximal Exercise on Heart Rate Variability
title_full The Effects of Submaximal and Maximal Exercise on Heart Rate Variability
title_fullStr The Effects of Submaximal and Maximal Exercise on Heart Rate Variability
title_full_unstemmed The Effects of Submaximal and Maximal Exercise on Heart Rate Variability
title_short The Effects of Submaximal and Maximal Exercise on Heart Rate Variability
title_sort effects of submaximal and maximal exercise on heart rate variability
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6355137/
https://www.ncbi.nlm.nih.gov/pubmed/30761192
work_keys_str_mv AT poehlingcoryp theeffectsofsubmaximalandmaximalexerciseonheartratevariability
AT llewellyntamral theeffectsofsubmaximalandmaximalexerciseonheartratevariability
AT poehlingcoryp effectsofsubmaximalandmaximalexerciseonheartratevariability
AT llewellyntamral effectsofsubmaximalandmaximalexerciseonheartratevariability