Photobiomodulation (PBM) therapy at 904 nm mitigates effects of exercise-induced skeletal muscle fatigue in young women
Toma RL, Oliveira MX, Renno ACM, Laakso EL
Lasers in medical science · 26 citas
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación independiente
- Universidad u hospital
- Griffith University
- Gobierno
- Minas Gerais State Agency for Research and Development FAPEMIG Brazil
- Gobierno
- National Council for Scientific and Technological Development CNPq Brazil
Según 3 financiadores declarados.
Publicación
- Publicado
- 2018-02-16 · Lasers Med Sci · vol. 33 · número 6 · págs. 1197–1205
- Editorial
- Springer Science+Business Media
- Citado
- 44 citas · más que el 89% de estudios similares · 2.5× el promedio de su campo
- Referencias
- 39 trabajos
- Acceso
- De pago
- Áreas de investigación
- Laser Applications in Dentistry and Medicine · Exercise and Physiological Responses · Sports Performance and Training
- Palabras clave
- low-level laser therapy, 904 nm laser, skeletal muscle fatigue, exercise fatigue, rectus femoris, muscle performance, rating of perceived exertion, isokinetic dynamometry, lactate, young women
- MeSH
- muscle, skeletal, humans, lactic acid, electromyography, exercise, cross-over studies, double-blind method, muscle fatigue, muscle contraction, torque, adult, female, male, muscle strength dynamometer, young adult, low-level light therapy
4 autores
- Renata Luri Toma🇧🇷Universidade Federal de São Paulo
- Murilo Xavier Oliveira🇧🇷Universidade Federal dos Vales do Jequitinhonha e Mucuri
- Ana Cláudia Muniz Rennó🇧🇷Universidade Federal de São Paulo
- E‐Liisa Laakso🇦🇺 · autor de correspondenciaGriffith University; Mater Research
Resumen
El texto original del estudio, en el idioma en que se publicó.
Muscle fatigue is a process influenced by several mechanisms such as concentration of metabolic substrates, changes in blood flow, and increases in reactive oxygen species that impair contractile muscle function. In this context, photobiomodulation has been investigated for preventing muscle fatigue, with reports of positive effects on muscle performance. This study aimed to investigate the effects of 904-nm LASER photobiomodulation on rectus femoris muscle performance in young women. Eighteen young women participated in a randomized, participant and assessor-blinded crossover trial with placebo control. Active LASER (904 nm, 60 mW, 250 Hz, 3.6 J per diode, total dose of 129.6 J) intervention was applied prior to an isokinetic fatigue protocol consisting of a set of 60 concentric quadricep contractions at a constant dynamometer angular velocity of 180°/s. Compared to placebo, LASER photobiomodulation significantly reduced muscle fatigue across a range of indicators including reduced ratings of perceived exertion (P = 0.0139), and increased electromyographic fatigue index (EFI) (P = 0.005). The isokinetic dynamometer performance analysis demonstrated that LASER photobiomodulation increased peak torque (P = 0.04), time to peak torque (P = 0.042), total work (P = 0.032), average power (P = 0.0007), and average peak torque (P = 0.019) between both experimental conditions. No significant difference was observed for work fatigue index (P = 0.29) or for lactate concentration (P > 0.05). Photobiomodulation at 904 nm was effective in reducing fatigue levels and increasing muscle performance in young active women but had no effect on lactate levels.
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