Heart Rate Variability and Direct Current Measurement Characteristics in Professional Mixed Martial Arts Athletes.

Coyne, JOC; Coutts, AJ; Fomin, R; French, DN; Newton, RU; Haff, GG

Heart Rate Variability and Direct Current Measurement Characteristics in Professional Mixed Martial Arts Athletes.

Coyne, JOC Coutts, AJ Fomin, R French, DN Newton, RU Haff, GG

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Publisher:: MDPI AG
Publication Type:: Journal Article
Citation:: Sports (Basel, Switzerland), 2020, 8, (8)
Issue Date:: 2020-07-30

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Field	Value	Language
dc.contributor.author	Coyne, JOC
dc.contributor.author	Coutts, AJ
dc.contributor.author	Fomin, R
dc.contributor.author	French, DN
dc.contributor.author	Newton, RU
dc.contributor.author	Haff, GG
dc.date.accessioned	2020-08-19T01:52:36Z
dc.date.available	2020-07-28
dc.date.available	2020-08-19T01:52:36Z
dc.date.issued	2020-07-30
dc.identifier.citation	Sports (Basel, Switzerland), 2020, 8, (8)
dc.identifier.issn	2075-4663
dc.identifier.issn	2075-4663
dc.identifier.uri	http://hdl.handle.net/10453/142212
dc.description.abstract	This study's purpose was to examine heart rate variability (HRV) and direct current potential (DC) measures' sensitivity and correlations between changes in the acute recovery and stress scale (ARSS) and the previous day's training load. Training load, HRV, DC and ARSS data were collected from fourteen professional mixed martial arts athletes (32.6 ± 5.3 years, 174.8 ± 8.8 cm, 79.2 ± 17.5 kg) the following morning after hard, easy and rest days. Sensitivity was expressed as a signal-to-noise ratio (SNR, inter-day typical error (TE) or coefficient of variation (%CV) divided by intra-day TE or %CV). Correlations between HRV, DC and ARSS with training load were also examined. The SNRs for the various HRV and DC measures were acceptable to good (1.02-2.85). There was a 23.1% CV average increase between measures taken between different locations versus the same location. Training load changes were not correlated with HRV/DC but were correlated with ARSS stress variables. Practitioners should be aware of HRV/DC variability; however the daily training signal was greater than the test-retest error in this investigation. Upon awakening, HRV/DC measures appear superior for standardization and planning. HRV and DC measures were less sensitive to the previous day's training load than ARSS measures.
dc.format	Electronic
dc.language	eng
dc.publisher	MDPI AG
dc.relation.ispartof	Sports (Basel, Switzerland)
dc.relation.isbasedon	10.3390/sports8080109
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.rights	©2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open accessarticle distributed under the terms and conditions of the Creative Commons Attribution(CC BY) license (http://creativecommons.org/licenses/by/4.0/)
dc.subject	1106 Human Movement and Sports Sciences
dc.title	Heart Rate Variability and Direct Current Measurement Characteristics in Professional Mixed Martial Arts Athletes.
dc.type	Journal Article
utslib.citation.volume	8
utslib.location.activity	Switzerland
utslib.for	1106 Human Movement and Sports Sciences
pubs.organisational-group	/University of Technology Sydney/Faculty of Health
pubs.organisational-group	/University of Technology Sydney/Strength - CHSP - Health Services and Practice
pubs.organisational-group	/University of Technology Sydney/Strength - CHT - Health Technologies
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	recently_added	*
pubs.consider-herdc	false
dc.date.updated	2020-08-19T01:52:15Z
pubs.issue	8
pubs.publication-status	Published
pubs.volume	8
utslib.citation.issue	8

Abstract:

This study's purpose was to examine heart rate variability (HRV) and direct current potential (DC) measures' sensitivity and correlations between changes in the acute recovery and stress scale (ARSS) and the previous day's training load. Training load, HRV, DC and ARSS data were collected from fourteen professional mixed martial arts athletes (32.6 ± 5.3 years, 174.8 ± 8.8 cm, 79.2 ± 17.5 kg) the following morning after hard, easy and rest days. Sensitivity was expressed as a signal-to-noise ratio (SNR, inter-day typical error (TE) or coefficient of variation (%CV) divided by intra-day TE or %CV). Correlations between HRV, DC and ARSS with training load were also examined. The SNRs for the various HRV and DC measures were acceptable to good (1.02-2.85). There was a 23.1% CV average increase between measures taken between different locations versus the same location. Training load changes were not correlated with HRV/DC but were correlated with ARSS stress variables. Practitioners should be aware of HRV/DC variability; however the daily training signal was greater than the test-retest error in this investigation. Upon awakening, HRV/DC measures appear superior for standardization and planning. HRV and DC measures were less sensitive to the previous day's training load than ARSS measures.

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http://hdl.handle.net/10453/142212