Effects of photobiomodulation on the fatigue level in elderly women: an isokinetic dynamometry evaluation

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dc.citation.issue2
dc.citation.volume31
dc.contributor.authorVassão, Patricia Gabrielli [UNIFESP]
dc.contributor.authorToma, Renata Luri [UNIFESP]
dc.contributor.authorAntunes, Hanna Karen Moreira [UNIFESP]
dc.contributor.authorTucci, Helga Tatiana [UNIFESP]
dc.contributor.authorRenno, Ana Claudia Muniz [UNIFESP]
dc.coverageLondon
dc.date.accessioned2020-10-30T18:46:31Z
dc.date.available2020-10-30T18:46:31Z
dc.date.issued2016
dc.description.abstractAging is responsible by a series of morphological and functional modifications that lead to a decline of muscle function, particularly in females. Muscle tissue in elderly people is more susceptible to fatigue and, consequently, to an increased inability to maintain strength and motor control. In this context, therapeutic approaches able of attenuating muscle fatigue have been investigated. Among these, the photobiomodulation demonstrate positive results to interacts with biological tissues, promoting the increase in cell energy production. Thus, the aim of this study was to investigate the effects of photobiomodulation (808 nm, 250 J/cm(2), 100 mW, 7 J each point) in the fatigue level and muscle performance in elderly women. Thirty subjects entered a crossover randomized double-blinded placebo-controlled trial. Photobiomodulation was delivered on the rectus femoris muscle of the dominant limb immediately before the fatigue protocol. In both sessions, peripheral muscle fatigue was analyzed by surface electromyography (EMG) and blood lactate analysis. Muscle performance was evaluated using an isokinetic dynamometer. The results showed that photobiomodulation was able of reducing muscle fatigue by a significant increase of electromyographic fatigue index (EFI) (p = 0.047) and decreasing significantly lactate concentration 6 min after the performance of the fatigue protocol (p = 0. 0006) compared the placebo laser session. However, the photobiomodulation was not able of increasing muscle performance measured by the isokinetic dynamometer. Thus, it can be conclude that the photobiomodulation was effective in reducing fatigue levels. However, no effects of photobiomodulation on muscle performance was observed.en
dc.description.affiliationUniv Fed Sao Paulo, Dept Biosci, Campus Baixada Santista,Rua Silva Jardim 136, BR-11015020 Sao Paulo, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Dept Human Movement Sci, Campus Baixada Santista,Rua Silva Jardim 136, BR-11015020 Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Biosci, Campus Baixada Santista,Rua Silva Jardim 136, BR-11015020 Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Human Movement Sci, Campus Baixada Santista,Rua Silva Jardim 136, BR-11015020 Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent275-282
dc.identifierhttps://doi.org/10.1007/s10103-015-1858-7
dc.identifier.citationLasers In Medical Science. London, v. 31, n. 2, p. 275-282, 2016.
dc.identifier.doi10.1007/s10103-015-1858-7
dc.identifier.issn0268-8921
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/58495
dc.identifier.wosWOS:000369330600010
dc.language.isoeng
dc.publisherSpringer London Ltd
dc.relation.ispartofLasers In Medical Science
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectAgeden
dc.subjectMuscle fatigueen
dc.subjectPhotobiomodulationen
dc.subjectElectromyographyen
dc.subjectMuscle strength dynamometeren
dc.subjectMuscle changesen
dc.subjectSurface electromyographyen
dc.titleEffects of photobiomodulation on the fatigue level in elderly women: an isokinetic dynamometry evaluationen
dc.typeinfo:eu-repo/semantics/article
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