Chronic effects of different intensities of power training on neuromuscular parameters in older people: a systematic review with meta-analysis

Guimarães, Marcelo Bandeira; Blanco‑Rambo, Eduarda; Vieira, Alexandra Ferreira; López Sáez de Asteasu, Mikel; Pinto, Ronei Silveira; Izquierdo Redín, Mikel; Lusa Cadore, Eduardo

Chronic effects of different intensities of power training on neuromuscular parameters in older people: a systematic review with meta-analysis

dc.contributor.author	Guimarães, Marcelo Bandeira
dc.contributor.author	Blanco‑Rambo, Eduarda
dc.contributor.author	Vieira, Alexandra Ferreira
dc.contributor.author	López Sáez de Asteasu, Mikel
dc.contributor.author	Pinto, Ronei Silveira
dc.contributor.author	Izquierdo Redín, Mikel
dc.contributor.author	Lusa Cadore, Eduardo
dc.contributor.department	Ciencias de la Salud	es_ES
dc.contributor.department	Osasun Zientziak	eu
dc.date.accessioned	2023-11-13T17:35:47Z
dc.date.available	2023-11-13T17:35:47Z
dc.date.issued	2023
dc.date.updated	2023-11-13T16:38:39Z
dc.description.abstract	Background Power training (PT) has been shown to be an efective method for improving muscle function, includ‑ ing maximal strength, measured by one-repetition maximum (1RM), and power output in older adults. However, it is not clear how PT intensity, expressed as a percentage of 1RM, afects the magnitude of these changes. The aim of this systematic review (International prospective register of systematic reviews—PROSPERO—registration: CRD42022369874) was to summarize the evidence from randomized clinical trials (RCT) assessing the efects of lowintensity (≤49% of 1RM) and moderate-intensity (50–69% of 1RM) versus high-intensity (≥70% of 1RM) PT on maximal power output and maximal strength in older adults. Methods We included RCTs that examined the efects of diferent intensities of power training on maximum strength and power output in older people. The search was performed using PubMed, LILACS, Embase, and Scopus. Methodological quality was assessed using the preferred reporting items for systematic reviews and meta-analyses (PRISMA 2020 statement checklist), and the quality of evidence was determined using the PEDro scale. Data were analyzed using standardized mean diferences (SMD) with a 95% confdence interval (CI), and random efects models were used for calculations. A signifcance level of p≤0.05 was accepted. Results Three RCTs assessing 179 participants, all of high methodological quality, were included. There were no sig‑ nifcant diferences between diferent PT intensities in terms of power output gains for leg press [SMD=0.130 (95% CI −0.19, 0.45), p=0.425] and knee extension exercises [SMD: 0.016 (95% CI −0.362, 0.395), p=0.932], as well as leg press 1RM increases [SMD: 0.296 (95% CI −0.03, 0.62); p=0.072]. However, high-intensity PT (70–80% of 1RM) was sig‑ nifcantly more efective than low-intensity PT in increasing 1RM for knee extension exercise [SMD: 0.523 (95% CI 0.14, 1.91), p=0.008]. Conclusions PT performed at low-to-moderate intensities induces similar power gains compared to high-inten‑ sity PT (70–80% of 1RM) in older adults. Nonetheless, the infuence of PT intensity on lower-limb strength gains seems to be dependent on the assessed exercise. Cautious interpretation is warranted considering the inclusion of only three studies.	es_ES
dc.format.mimetype	application/pdf	en
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dc.identifier.citation	Bandeira-Guimarães, M., Blanco-Rambo, E., Vieira, A. F., Sáez de Asteasu, M. L., Pinto, R. S., Izquierdo, M., Cadore, E. L. (2023) Chronic effects of different intensities of power training on neuromuscular parameters in older people: A systematic review with meta-analysis. Sports medicine - open, 9(1), 1-12. https://doi.org/10.1186/s40798-023-00646-9.	en
dc.identifier.doi	10.1186/s40798-023-00646-9
dc.identifier.issn	2199-1170
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/46749
dc.language.iso	eng	en
dc.publisher	Springer	en
dc.relation.ispartof	Sports Medicine - Open (2023), 9:98	en
dc.relation.publisherversion	https://doi.org/10.1186/s40798-023-00646-9
dc.rights	© The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License.	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/
dc.subject	Ageing	en
dc.subject	Muscle strength	en
dc.subject	Resistance training	en
dc.subject	Muscle power	en
dc.subject	Training intensity	en
dc.title	Chronic effects of different intensities of power training on neuromuscular parameters in older people: a systematic review with meta-analysis	en
dc.type	info:eu-repo/semantics/article
dc.type.version	info:eu-repo/semantics/publishedVersion
dspace.entity.type	Publication
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