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

Matos, Areolino Pena; Navarro, Ricardo Scarparo; Lombardi, Império; Brugnera, Aldo; Munin, Egberto; Villaverde, Antônio Balbin

doi:10.3233/ies-150604

Cited by 2 publications

(3 citation statements)

References 34 publications

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“…One study showed unfavorable results [28]. Another study analyzed grip strength (N) and showed favourable results [29] (Fig. 2).…”

Section: Synthesized Resultsmentioning

confidence: 99%

“…Another factor stimulated by PBM is the acute increase in intravascular nitric oxide concentration, which may be a possible mechanism of performance improvement, since it causes vasodilation and increased tissue temperature and oxygenation, with a subsequent increase in neurotransmitters and an improvement in muscle fibre contraction [29]. Furthermore, PBM-treated muscles have less resistance capacity decrease during exercise, allowing greater muscle work per workout, generating greater mechanical tension, being a primary factor responsible for initiating the hypertrophic response and muscle mass gain, information that contributes to the result of strength gain [10].…”

Section: Discussionmentioning

confidence: 99%

“…The wavelengths used for low-power laser application ranged from 655nm [17], 660nm [23], 800nm [28], 804nm [18], 808nm [6,12,21,22,32,33], 810nm [10,15,34,35], 820nm [36], 830nm [20,26] and 970nm 1 [6,28]. Wavelengths used in LED include 630nm [24], 638nm [29], 830nm [25], 850nm [30] and 880nm [8]. Among the wavelengths used in clustering are 850nm (laser) and 630nm (LED) [11], 850nm (laser) with 670nm, 880nm, and 950nm (LED) [13,27], 850nm (laser) [35], and 905nm (laser) with 875nm and 640nm (LED) [31].…”

Section: Treatment Protocolmentioning

confidence: 99%

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Photobiomodulation in aspects of muscle function – a scoping review

Cubas¹,

Eckert²,

Canalli³

et al. 2023

J Pre Clin Clin Res.

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Introduction and Objective. Aspects of muscle function (AoMF), such as strength, power, torque, local muscle endurance, and hypertrophy, have a major influence on physical fitness and functional performance. Photobiomodulation (PBM) has been used to improve performance in resistance exercise. The aim of this study was to identify the effects of PBM on the AOMF, and to verify the dosimetric parameters of the intervention. Review Methods. The review followed the PRISMA guidelines. The databases used were PubMed, Web of Science, Scopus, Embase, Lilacs, Cochrane, LIVIVO, CINAHL, PeDro, Open Grey, Google Scholar, and CAPES Thesis and Dissertation. To be included, the studies had to be applied to healthy humans of either grender or age group, report the effects of PBM, present variables of muscle strength, torque, power, and hypertrophy. Brief description of the state of knowledge. The database search resulted in 3,092 records, as well as additional records identified through other sources -PEDro with 793 records and Capes Thesis and Dissertation with 1,492 records, a total of 5,377 records. After removing duplicates, 4,796 records remained. After reading the titles and abstracts, 56 records remained, which were read in full and evaluated according to the review criteria. 29 studies were eligible for inclusion based on the inclusion and exclusion criteria of this scoping review. Conclusion. It was possible to observe similarities in the studies, especially the moment of application being the preexertion moment, the dose of energy applied per point was 30J, and the wavelength -808-810nm.

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“…One study showed unfavorable results [28]. Another study analyzed grip strength (N) and showed favourable results [29] (Fig. 2).…”

Section: Synthesized Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Treatment Protocolmentioning

confidence: 99%

See 1 more Smart Citation

Photobiomodulation in aspects of muscle function – a scoping review

Cubas¹,

Eckert²,

Canalli³

et al. 2023

J Pre Clin Clin Res.

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Application of phototherapy for the healing of the navels of neonatal dairy calves

et al. 2017

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The present work evaluated the effects of LED light irradiation on the healing of the navels of neonatal dairy calves. Fifty-seven neonatal calves were divided into two groups. Animals had their umbilical stumps immersed in 10% iodine tincture for 60 s, and this process was repeated every 24 h for three consecutive days. The 29 animals in the first group did not receive LED therapy. The 28 animals in the second group received LED light irradiation at 640 nm with 300 mW power, 46.8 J/cm energy density, 60 s irradiation time, and 0.385 cm spot size. The animals were irradiated at four points (46.8 J/cm per point) evenly distributed around the insertion site of the umbilical stump every 24 h for three consecutive days. Irradiation with LED light was applied before the umbilical stumps were immersed in the iodine solution. The time after birth at which the umbilical stump fell off of each calf was noted. The umbilical stumps of all animals fell off by the 25th day of age. After the umbilical stump fell off, the healing of the remnant wound was followed up to the 30th day after birth. The area of the wound was measured on the 15th, 20th, and 25th day after birth using digital photographs and computer-assisted area measurements. A two-tailed unpaired t test was applied to analyze the falling off the umbilical stump, whereas a Kruskal-Wallis one-way ANOVA test with a Dunn's multiple comparison test was used for the wound size evolution. GraphPad Prisma 5.0® and GraphPad StatMate 2.00® were used for the statistical analysis. The results revealed that phototherapy hastened the falling off the umbilical stump, accelerated navel healing, and reduced the mortality rate in newborn calves. Therefore, this study introduced a preventive and adjuvant after birth treatment that proved to be effective in reducing the incidences of omphalitis and newborn mortality.

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

Cited by 2 publications

References 34 publications

Photobiomodulation in aspects of muscle function – a scoping review

Photobiomodulation in aspects of muscle function – a scoping review

Application of phototherapy for the healing of the navels of neonatal dairy calves

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