Overtraining in Resistance Exercise: An Exploratory Systematic Review and Methodological Appraisal of the Literature.

Grandou, C; Wallace, L; Impellizzeri, FM; Allen, NG; Coutts, AJ

Overtraining in Resistance Exercise: An Exploratory Systematic Review and Methodological Appraisal of the Literature.

Grandou, C

Wallace, L

Impellizzeri, FM Allen, NG Coutts, AJ

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Publisher:: ADIS INT LTD
Publication Type:: Journal Article
Citation:: Sports medicine (Auckland, N.Z.), 2020, 50, (4), pp. 815-828
Issue Date:: 2020

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Field	Value	Language
dc.contributor.author	Grandou, C https://orcid.org/0000-0002-3161-0579
dc.contributor.author	Wallace, L https://orcid.org/0000-0002-7561-1303
dc.contributor.author	Impellizzeri, FM
dc.contributor.author	Allen, NG
dc.contributor.author	Coutts, AJ
dc.date.accessioned	2020-08-27T04:14:20Z
dc.date.available	2020-08-27T04:14:20Z
dc.date.issued	2020
dc.identifier.citation	Sports medicine (Auckland, N.Z.), 2020, 50, (4), pp. 815-828
dc.identifier.issn	0112-1642
dc.identifier.issn	1179-2035
dc.identifier.uri	http://hdl.handle.net/10453/142398
dc.description.abstract	BACKGROUND:The balance between training stress and recovery is important for inducing adaptations to improve athletic performance. However, continuously high training loads with insufficient recovery may cause fatigue to accumulate and result in overtraining. A comprehensive systematic review is required to collate overtraining literature and improve the current understanding of the mechanisms underlying functional overreaching (FOR), non-functional overreaching (NFOR) and the overtraining syndrome (OTS) in resistance training. OBJECTIVE:The objective of this systematic review was to establish markers of overtraining and elucidate the mechanisms underlying maladaptive resistance training conditions. Furthermore, this review aims to critically evaluate the methodological approaches of the overtraining literature. METHODS:A systematic literature search was performed on PubMed, Web of Science and SPORTDiscus to identify studies up to June 2019. Electronic databases were searched using terms related to resistance training and overtraining. Records were included if they attempted to induce a state of overreaching or overtraining through resistance exercise in healthy participants. RESULTS:A total of 22 studies were selected for review. Among these studies, eight resulted in decrements in performance and measured changes in performance during a follow-up period. There were four studies that reported decrease in performance yet failed to implement follow-up measures. A total of 10 studies reported no decline in performance. Overall, a lack of standardisation in methodology (follow-up performance testing) and diagnostic criteria prevents consistent determination of FOR, NFOR and OTS in resistance training. CONCLUSIONS:Few studies have appropriately established FOR, NFOR or OTS in resistance training. Overtraining may be related to frequent high-intensity and monotonous resistance training. However, no marker other than a sustained decrease in performance has been established as a reliable indicator of overtraining in resistance exercise. REGISTRATION:This systematic review was registered on the Open Science Framework (https://osf.io/) (https://doi.org/10.17605/osf.io/5bmsp).
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ADIS INT LTD
dc.relation.ispartof	Sports medicine (Auckland, N.Z.)
dc.relation.isbasedon	10.1007/s40279-019-01242-2
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0913 Mechanical Engineering, 1106 Human Movement and Sports Sciences, 1302 Curriculum and Pedagogy
dc.subject.classification	Sport Sciences
dc.title	Overtraining in Resistance Exercise: An Exploratory Systematic Review and Methodological Appraisal of the Literature.
dc.type	Journal Article
utslib.citation.volume	50
utslib.location.activity	New Zealand
utslib.for	0913 Mechanical Engineering
utslib.for	1106 Human Movement and Sports Sciences
utslib.for	1302 Curriculum and Pedagogy
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	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2020-08-27T04:14:16Z
pubs.issue	4
pubs.publication-status	Published
pubs.volume	50
utslib.citation.issue	4

Abstract:

BACKGROUND:The balance between training stress and recovery is important for inducing adaptations to improve athletic performance. However, continuously high training loads with insufficient recovery may cause fatigue to accumulate and result in overtraining. A comprehensive systematic review is required to collate overtraining literature and improve the current understanding of the mechanisms underlying functional overreaching (FOR), non-functional overreaching (NFOR) and the overtraining syndrome (OTS) in resistance training. OBJECTIVE:The objective of this systematic review was to establish markers of overtraining and elucidate the mechanisms underlying maladaptive resistance training conditions. Furthermore, this review aims to critically evaluate the methodological approaches of the overtraining literature. METHODS:A systematic literature search was performed on PubMed, Web of Science and SPORTDiscus to identify studies up to June 2019. Electronic databases were searched using terms related to resistance training and overtraining. Records were included if they attempted to induce a state of overreaching or overtraining through resistance exercise in healthy participants. RESULTS:A total of 22 studies were selected for review. Among these studies, eight resulted in decrements in performance and measured changes in performance during a follow-up period. There were four studies that reported decrease in performance yet failed to implement follow-up measures. A total of 10 studies reported no decline in performance. Overall, a lack of standardisation in methodology (follow-up performance testing) and diagnostic criteria prevents consistent determination of FOR, NFOR and OTS in resistance training. CONCLUSIONS:Few studies have appropriately established FOR, NFOR or OTS in resistance training. Overtraining may be related to frequent high-intensity and monotonous resistance training. However, no marker other than a sustained decrease in performance has been established as a reliable indicator of overtraining in resistance exercise. REGISTRATION:This systematic review was registered on the Open Science Framework (https://osf.io/) (https://doi.org/10.17605/osf.io/5bmsp).

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http://hdl.handle.net/10453/142398