Pre-exercise led phototherapy (638 nm) prevents grip strength loss in elderly women: a double-blind randomized controlled trial

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dc.contributor.author Matos, Areolino Pena
dc.contributor.author Navarro, Ricardo Scarparo
dc.contributor.author Lombardi, Imperio, Jr. [UNIFESP]
dc.contributor.author Brugnera, Aldo, Jr.
dc.contributor.author Munin, Egberto
dc.contributor.author Villaverde, Antonio Balbin
dc.date.accessioned 2019-01-21T10:29:55Z
dc.date.available 2019-01-21T10:29:55Z
dc.date.issued 2016
dc.identifier http://dx.doi.org/10.3233/IES-150604
dc.identifier.citation Isokinetics And Exercise Science. Amsterdam, v. 24, n. 2, p. 83-89, 2016.
dc.identifier.issn 0959-3020
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/49478
dc.description.abstract BACKGROUND: LED phototherapy can attenuate muscle fatigue and accelerate muscle recovery in young persons, but little is known about photobiomodulation effects on muscle strength in the elderly. OBJECTIVE: To assess the effects of LED phototherapy on the grip strength and muscle fatigue of wrist flexors in elderly women. METHODS: Twenty-nine women were recruited and allocated to Placebo Group (PG) (n = 14) and LED Group (LG) (n = 15). Grip strength, number of resisted wrist flexion repetitions, and serum creatine kinase (CK) were measured. The subjects were irradiated with one diode (638 nm, 150 mW, 11.7 J/cm(2), 4.5 J/point) at four points on the wrist flexor muscles, and fatigue was induced by exercise using 75% of one maximum repetition (1MR). When muscle fatigue was reached, grip strength and CK were reassessed. RESULTS: In the LG, there was no intra-group difference for grip strength (N), 217.7 +/- 34.3 to 209.9 +/- 35.3 (p = 0.063) whereas in the PG, there was decrease in strength from 203.0 +/- 22.5 to 181.4 +/- 21.6 (p < 0.001). LED increased the number of repetitions by 22.0%. An increase in CK (U/L) was observed in PG in all post-fatigue periods (p = 0.003) but no difference was found in the LG (p = 0.972). CONCLUSIONS: A single application of LED before muscle fatigue induction may effectively maintain grip strength and reduce muscle fatigue and damage. en
dc.format.extent 83-89
dc.language.iso eng
dc.publisher Ios press
dc.relation.ispartof Isokinetics And Exercise Science
dc.rights Acesso restrito
dc.subject Elderly en
dc.subject Muscle Fatigue en
dc.subject Muscle Strength en
dc.subject Dynamometer en
dc.subject PhototherapyLight-Emitting-Diodes en
dc.subject Skeletal-Muscle Fatigue en
dc.subject Level Laser Therapy en
dc.subject Limb Blood-Flow en
dc.subject Mitochondrial Dysfunction en
dc.subject Isometric-Exercise en
dc.subject Handgrip Strength en
dc.subject Follow-Up en
dc.subject Irradiation en
dc.subject Sarcopenia en
dc.title Pre-exercise led phototherapy (638 nm) prevents grip strength loss in elderly women: a double-blind randomized controlled trial en
dc.type Artigo
dc.description.affiliation Federal University of Amapá, Campus Marco Zero, Macapá, AP, Brazil
dc.description.affiliation Biomedical Engineering Institute, Camilo Castelo Branco University, São Paulo, Brazil
dc.description.affiliation Human Movement Science Department, Federal University of São Paulo, Santos, SP, Brazil
dc.description.affiliationUnifesp Human Movement Science Department, Federal University of São Paulo, Santos, SP, Brazil
dc.identifier.doi 10.3233/IES-150604
dc.description.source Web of Science
dc.identifier.wos WOS:000378947900001



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