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Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters
The aim of this study was to clarify whether the physiological fatigue status of elite speed skaters is influenced by the approximately five-month international competition season by comparing morning heart rate variability (HRV) at the beginning of the competition season (Japan Single Distances Cha...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764897/ https://www.ncbi.nlm.nih.gov/pubmed/33327399 http://dx.doi.org/10.3390/sports8120164 |
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author | Iizuka, Taro Kon, Michihiro Maegawa, Taketeru Yuda, Jun Aoyanagi, Toru Takahashi, Hideyuki Atomi, Tomoaki Shimizu, Miho Atomi, Yoriko |
author_facet | Iizuka, Taro Kon, Michihiro Maegawa, Taketeru Yuda, Jun Aoyanagi, Toru Takahashi, Hideyuki Atomi, Tomoaki Shimizu, Miho Atomi, Yoriko |
author_sort | Iizuka, Taro |
collection | PubMed |
description | The aim of this study was to clarify whether the physiological fatigue status of elite speed skaters is influenced by the approximately five-month international competition season by comparing morning heart rate variability (HRV) at the beginning of the competition season (Japan Single Distances Championships: JSDC) with that at the end of the competition season (World Single Distances Championships: WSDC). Five international-class speed skaters participated in the study. HRV indices and subjective fatigue were measured each morning of the four days prior to the first races of the JSDC and WSDC in the 2007/2008 season. The parasympathetic HRV indices: root mean square of the successive R-R interval differences (RMSSD) (JSDC, 61.0 ms; WSDC, 42.1 ms; p < 0.05), high-frequency component power (HF) (JSDC, 1393 ms(2); WSDC, 443 ms(2); p < 0.05), and normalized unit of HF (HFnu) (JSDC, 53.2%; WSDC, 25.5%; p < 0.05) were lower for the WSDC than for the JSDC. The decrease in these indices may reflect the skaters’ accumulated fatigue during the course of the competition season. Morning measurements of HRV may thus be an efficient way for elite speed skaters and coaches to objectively monitor physiological fatigue throughout the competition season. |
format | Online Article Text |
id | pubmed-7764897 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-77648972020-12-27 Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters Iizuka, Taro Kon, Michihiro Maegawa, Taketeru Yuda, Jun Aoyanagi, Toru Takahashi, Hideyuki Atomi, Tomoaki Shimizu, Miho Atomi, Yoriko Sports (Basel) Article The aim of this study was to clarify whether the physiological fatigue status of elite speed skaters is influenced by the approximately five-month international competition season by comparing morning heart rate variability (HRV) at the beginning of the competition season (Japan Single Distances Championships: JSDC) with that at the end of the competition season (World Single Distances Championships: WSDC). Five international-class speed skaters participated in the study. HRV indices and subjective fatigue were measured each morning of the four days prior to the first races of the JSDC and WSDC in the 2007/2008 season. The parasympathetic HRV indices: root mean square of the successive R-R interval differences (RMSSD) (JSDC, 61.0 ms; WSDC, 42.1 ms; p < 0.05), high-frequency component power (HF) (JSDC, 1393 ms(2); WSDC, 443 ms(2); p < 0.05), and normalized unit of HF (HFnu) (JSDC, 53.2%; WSDC, 25.5%; p < 0.05) were lower for the WSDC than for the JSDC. The decrease in these indices may reflect the skaters’ accumulated fatigue during the course of the competition season. Morning measurements of HRV may thus be an efficient way for elite speed skaters and coaches to objectively monitor physiological fatigue throughout the competition season. MDPI 2020-12-14 /pmc/articles/PMC7764897/ /pubmed/33327399 http://dx.doi.org/10.3390/sports8120164 Text en © 2020 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Iizuka, Taro Kon, Michihiro Maegawa, Taketeru Yuda, Jun Aoyanagi, Toru Takahashi, Hideyuki Atomi, Tomoaki Shimizu, Miho Atomi, Yoriko Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters |
title | Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters |
title_full | Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters |
title_fullStr | Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters |
title_full_unstemmed | Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters |
title_short | Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters |
title_sort | comparison of morning heart rate variability at the beginning and end of a competition season in elite speed skaters |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764897/ https://www.ncbi.nlm.nih.gov/pubmed/33327399 http://dx.doi.org/10.3390/sports8120164 |
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