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Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp

This study aimed to clarify whether changes in the fatigue status of elite athletes during a precompetition period could be evaluated using morning heart rate variability (HRV) indices. Eight Japanese National Badminton Team players (age, 23.0 ± 2.8 years) participated in this study. HRV and subject...

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Autores principales: Iizuka, Taro, Ohiwa, Nao, Atomi, Tomoaki, Shimizu, Miho, Atomi, Yoriko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7697084/
https://www.ncbi.nlm.nih.gov/pubmed/33182645
http://dx.doi.org/10.3390/sports8110147
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author Iizuka, Taro
Ohiwa, Nao
Atomi, Tomoaki
Shimizu, Miho
Atomi, Yoriko
author_facet Iizuka, Taro
Ohiwa, Nao
Atomi, Tomoaki
Shimizu, Miho
Atomi, Yoriko
author_sort Iizuka, Taro
collection PubMed
description This study aimed to clarify whether changes in the fatigue status of elite athletes during a precompetition period could be evaluated using morning heart rate variability (HRV) indices. Eight Japanese National Badminton Team players (age, 23.0 ± 2.8 years) participated in this study. HRV and subjective fatigue were measured during the first (days 1–4: Phase 1) and the second half (days 5–8: Phase 2) of an 8-day national team training camp. The global and parasympathetic HRV indices were as follows: standard deviation of all R-R intervals (SDNN) (Phase 1, 87.5 ms; Phase 2, 104.3 ms; p < 0.05), root mean square of the successive R-R interval differences (RMSSD) (Phase 1, 66.6 ms; Phase 2, 103.6 ms; p < 0.05), and high-frequency component power (HF) (Phase 1, 1412.0 ms(2); Phase 2, 3318.5 ms(2); p < 0.05). All the aforementioned indices increased significantly from Phase 1 to Phase 2. Significant correlations were observed between the change in subjective fatigue and changes in SDNN, RMSSD, and HF (ρ = −0.80, p = 0.017; ρ = −0.77, p = 0.027; and ρ = −0.80, p = 0.017, respectively). Measuring morning HRV indices may be effective for objectively evaluating changes in the fatigue status of elite athletes during a precompetition period.
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spelling pubmed-76970842020-11-29 Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp Iizuka, Taro Ohiwa, Nao Atomi, Tomoaki Shimizu, Miho Atomi, Yoriko Sports (Basel) Article This study aimed to clarify whether changes in the fatigue status of elite athletes during a precompetition period could be evaluated using morning heart rate variability (HRV) indices. Eight Japanese National Badminton Team players (age, 23.0 ± 2.8 years) participated in this study. HRV and subjective fatigue were measured during the first (days 1–4: Phase 1) and the second half (days 5–8: Phase 2) of an 8-day national team training camp. The global and parasympathetic HRV indices were as follows: standard deviation of all R-R intervals (SDNN) (Phase 1, 87.5 ms; Phase 2, 104.3 ms; p < 0.05), root mean square of the successive R-R interval differences (RMSSD) (Phase 1, 66.6 ms; Phase 2, 103.6 ms; p < 0.05), and high-frequency component power (HF) (Phase 1, 1412.0 ms(2); Phase 2, 3318.5 ms(2); p < 0.05). All the aforementioned indices increased significantly from Phase 1 to Phase 2. Significant correlations were observed between the change in subjective fatigue and changes in SDNN, RMSSD, and HF (ρ = −0.80, p = 0.017; ρ = −0.77, p = 0.027; and ρ = −0.80, p = 0.017, respectively). Measuring morning HRV indices may be effective for objectively evaluating changes in the fatigue status of elite athletes during a precompetition period. MDPI 2020-11-10 /pmc/articles/PMC7697084/ /pubmed/33182645 http://dx.doi.org/10.3390/sports8110147 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
Ohiwa, Nao
Atomi, Tomoaki
Shimizu, Miho
Atomi, Yoriko
Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp
title Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp
title_full Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp
title_fullStr Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp
title_full_unstemmed Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp
title_short Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp
title_sort morning heart rate variability as an indication of fatigue status in badminton players during a training camp
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7697084/
https://www.ncbi.nlm.nih.gov/pubmed/33182645
http://dx.doi.org/10.3390/sports8110147
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