Effects of short term elastic resistance training on muscle mass and strength in untrained older adults : a randomized clinical trial

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Autor(es): dc.creatorMartins, Wagner Rodrigues-
Autor(es): dc.creatorSafons, Marisete Peralta-
Autor(es): dc.creatorBottaro, Martim-
Autor(es): dc.creatorBlasczyk, Juscelino Castro-
Autor(es): dc.creatorDiniz, Leonardo Rios-
Autor(es): dc.creatorFonseca, Romulo Maia Carlos-
Autor(es): dc.creatorRocha, Ana Clara Bonini-
Autor(es): dc.creatorOliveira, Ricardo Jacó de-
Data de aceite: dc.date.accessioned2021-10-14T18:00:30Z-
Data de disponibilização: dc.date.available2021-10-14T18:00:30Z-
Data de envio: dc.date.issued2017-10-13-
Data de envio: dc.date.issued2017-10-13-
Data de envio: dc.date.issued2015-08-12-
Fonte completa do material: dc.identifierhttp://repositorio.unb.br/handle/10482/24808-
Fonte completa do material: dc.identifierhttps://doi.org/10.1186/s12877-015-0101-5-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/621400-
Descrição: dc.descriptionBackground: The current recommendations on resistance training involving older adults have reported an improvement of body composition variables. Despite this, there is a lack of knowledge on how elastic resistance training (ERT) affects the muscle mass in older adults population. The purpose of this study was to determine the effects of a short-term ERT on muscle mass of health and untrained older adults. Methods: Forty older adults were randomized into two groups of 20 individuals each: Control Group (CG = 66.2 ± 6.6 years) and Training Group (TG = 69.1 ± 6.3 years). TG underwent an ERT twice a week during 8 weeks and control group did not receive any specific intervention. The primary outcome was the upper and lower limbs muscle mass, measured by Dual-energy x-ray absorptiometry. The secondary outcomes were knee isokinetic peak torque (PT) at 60°/s and 120°/s speeds and isometric handgrip strength. A 2×2 mixed model (group [TG and CG] × time [pre and post]) analysis of variance (ANOVA) was applied to determine the effect on primary and secondary outcomes. Results: The results of the ANOVA showed no significant effects in group x time interaction for (1) upper limbs fat free mass (F [1.38] = 1.80, p = 0.19, effect size [ES] = 0.1) and for (2) lower limbs fat free mass (F [1.38] = 0.03, p = 0.88, ES = 0.02). Regarding muscle strength, the ANOVA showed no significant effects in group x time interaction for (3) PT at 60°/s (F [1.38] = 0.33, p = 0.56, ES = 3.0), for (4) PT at 120°/s (F [1.38] = 0.80, p = 0.38, ES = 4.1) and for handgrip strength (F [1.38] = 0.65, p = 0.42-value, ES = 0.9). Analysis of PT in TG showed a significant change of 4.5 %, but only at 120°/s (p = 0.01) when comparing pre and post-training (time interaction). Conclusions: Eight weeks of ERT did not show significant changes in muscle mass and strength of untrained older adults.-
Formato: dc.formatapplication/pdf-
Publicador: dc.publisherBioMed Central-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rights© 2015 Martins et al. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.-
Palavras-chave: dc.subjectTreinamento-
Palavras-chave: dc.subjectResistência-
Palavras-chave: dc.subjectComposição corporal-
Palavras-chave: dc.subjectEnvelhecimento-
Palavras-chave: dc.subjectAptidão física-
Título: dc.titleEffects of short term elastic resistance training on muscle mass and strength in untrained older adults : a randomized clinical trial-
Tipo de arquivo: dc.typelivro digital-
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