Use of low-level laser therapy (808 nm) to muscle fatigue resistance: a randomized double-blind crossover trial
de Brito Vieira WH, Bezerra RM, Queiroz RA, Maciel NF, Parizotto NA, Ferraresi C
Photomedicine and laser surgery · 33 citas
Etiquetas de revisión
Financiación no declaradaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
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 no declarada
Publicación
- Publicado
- 2014-12-01 · Photomed Laser Surg · vol. 32 · número 12 · págs. 678–685
- Editorial
- Mary Ann Liebert, Inc.
- Citado
- 59 citas · más que el 93% de estudios similares · 4.1× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 36 trabajos
- Acceso
- De pago
- Áreas de investigación
- Laser Applications in Dentistry and Medicine · Sports Performance and Training · Exercise and Physiological Responses
- Palabras clave
- low-level laser therapy, 808 nm laser, muscle fatigue resistance, knee flexion and extension, isokinetic dynamometry, quadriceps, post-exercise recovery, placebo laser
- MeSH
- muscle, skeletal, knee joint, humans, electromyography, cross-over studies, double-blind method, muscle fatigue, muscle contraction, male, young adult, low-level light therapy
6 autores
- Wouber Hérickson de Brito Vieira🇧🇷 · autor de correspondenciaUniversidade Federal do Rio Grande do Norte
- Raphael Machado Bezerra🇧🇷Universidade Federal do Rio Grande do Norte
- Renata Alencar Saldanha Queiroz🇧🇷Universidade Federal do Rio Grande do Norte
- Nícia Farias Braga Maciel🇧🇷Universidade Federal do Rio Grande do Norte
- Nivaldo Antônio Parizotto🇧🇷Universidade Federal de São Carlos
- Cleber Ferraresi🇧🇷Universidade Federal de São Carlos
Resumen
El texto original del estudio, en el idioma en que se publicó.
Objective
The purpose of this study was to investigate whether low-level laser (light) therapy (LLLT) can provide fatigue resistance via maximum repetitions (RM) with an isokinetic dynamometer, and decrease electromyography fatigue index (EFI).
Background data
LLLT has been used to increase muscle performance when applied before or after intense exercises.
Materials and methods
This study was a randomized, double-blind, crossover trial with placebo. Seven young men (21±3 years of age) who were clinically healthy, were allocated into two groups: active laser (LLLT) and placebo laser (Placebo). Both groups were assessed at baseline, at one training session, and at the end of this study. Baseline and final assessments recorded the number of RM of knee flexion-extensions using an isokinetic dynamometer at 60 degrees/sec in conjunction with EFI recorded by median frequency. The training sessions consisted of three sets of 20 RM of knee flexion-extensions using an isokinetic dynamometer at 60 degrees/sec plus LLLT (808 nm, 100 mW, 4 J), or placebo, applied to quadriceps femoris muscles between sets, and after the last series of this exercise. After 1 week (washout period), all volunteers were exchanged among groups and then all assessments were repeated.
Results
LLLT group increased RM (52%; p=0.002) with a small EFI for the vastus medialis (p=0.004) and rectus femoris (p=0.004).
Conclusions
These results suggest an increased muscle fatigue resistance when LLLT is applied during rest intervals, and after the last series of intense exercises.
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