The effect of low-level laser therapy on electrically induced muscle fatigue: a pilot study
Gorgey AS, Wadee AN, Sobhi NN
Photomedicine and laser surgery · 31 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
- 2008-10-01 · Photomed Laser Surg · vol. 26 · número 5 · págs. 501–506
- Editorial
- Mary Ann Liebert, Inc.
- Citado
- 46 citas · más que el 89% de estudios similares · 2.6× el promedio de su campo
- Referencias
- 35 trabajos
- Acceso
- De pago
- Áreas de investigación
- Laser Applications in Dentistry and Medicine · Effects of Vibration on Health · Ocular and Laser Science Research
- Palabras clave
- low-level laser therapy, muscle fatigue, neuromuscular electrical stimulation, knee extensors, muscle torque, 808 nm laser, energy dose
- MeSH
- muscle, skeletal, humans, pilot projects, electric stimulation, muscle fatigue, muscle contraction, adolescent, male, young adult, low-level light therapy
3 autores
- Ashraf S. Gorgey🇪🇬🇺🇸Cairo University; Indiana University Indianapolis
- Amir N. Wadee🇪🇬Cairo University
- Nagi N. Sobhi🇪🇬Cairo University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Objective
The purpose of this pilot study is to determine if low-level laser therapy (LLLT) could attenuate skeletal muscle fatigue induced by surface neuromuscular electrical stimulation (NMES) in healthy volunteers.
Materials and methods
Five college-age participants underwent three cross-over randomized trials: two (LLLT + NMES) test trials and a control trial (NMES only), in which NMES was applied to their dominant knee extensor muscle group. The LLLT doses, 500 mW at 808 nm, were either adjusted to deliver a total energy of 7 J for 10 min or 3 J for 5 min in a blinded fashion. Following LLLT irradiation, the NMES protocol was immediately delivered for 3 min to induce fatigue in the knee extensor muscle group.
Results
The five participants completed the three trials. After the control trial, torque significantly decreased (62%; p < 0.0001) at the end of 3 min. There was no significant difference between the 7 J and 3 J trials on muscle fatigue. Following both LLLT trials, torque significantly decreased (51%; p < 0.0001) at the end of 3 min. Although there was a difference (11%) in fatigue between the two LLLT trials and the control trial, this difference did not attain statistical significance (p = 0.63).
Conclusion
LLLT did not attenuate muscle fatigue evoked by NMES, but this needs to be further addressed in human studies and clinical settings. The lack of significant findings could be explained by the small sample size and the selection of LLLT parameters.
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