Effects of photobiomodulation on the fatigue level in elderly women: an isokinetic dynamometry evaluation
Vassão PG, Toma RL, Antunes HK, Tucci HT, Renno AC
Lasers in medical science · 27 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
- University of Michigan
Según 1 financiador declarado.
Publicación
- Publicado
- 2015-12-29 · Lasers Med Sci · vol. 31 · número 2 · págs. 275–282
- Editorial
- Springer Science+Business Media
- Citado
- 54 citas · más que el 89% de estudios similares · 2.7× el promedio de su campo
- Referencias
- 38 trabajos
- Acceso
- Acceso abierto (copia en repositorio) · OTHER-OA
- Áreas de investigación
- Laser Applications in Dentistry and Medicine · Effects of Vibration on Health · Biofield Effects and Biophysics
- Palabras clave
- low-level laser therapy, muscle fatigue, older women, aging, rectus femoris, blood lactate, muscle performance, isokinetic dynamometry, surface electromyography
- MeSH
- humans, lactic acid, electromyography, cross-over studies, double-blind method, muscle fatigue, kinetics, aged, middle aged, female, quadriceps muscle, low-level light therapy
5 autores
- Patrícia Gabrielli Vassão🇧🇷 · autor de correspondenciaUniversidade Federal de São Paulo
- Renata Luri Toma🇧🇷Universidade Federal de São Paulo
- Hanna Karen Moreira Antunes🇧🇷Universidade Federal de São Paulo
- Helga Tatiana Tucci🇧🇷Universidade Federal de São Paulo
- Ana Cláudia Muniz Rennó🇧🇷Universidade Federal de São Paulo
Resumen
El texto original del estudio, en el idioma en que se publicó.
Aging 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.
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