Effects of low-level laser therapy applied before or after plyometric exercise on muscle damage markers: randomized, double-blind, placebo-controlled trial
Fritsch CG, Dornelles MP, Severo-Silveira L, Marques VB, Rosso IA, Baroni BM
Lasers in medical science · 24 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
- Gobierno
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
Según 1 financiador declarado.
Publicación
- Publicado
- 2016-09-21 · Lasers Med Sci · vol. 31 · número 9 · págs. 1935–1942
- Editorial
- Springer Science+Business Media
- Citado
- 33 citas · más que el 87% de estudios similares · 2.1× el promedio de su campo
- Referencias
- 39 trabajos
- Acceso
- De pago
- Áreas de investigación
- Exercise and Physiological Responses · Laser Applications in Dentistry and Medicine · Muscle metabolism and nutrition
- Palabras clave
- low-level laser therapy, plyometric training, exercise-induced muscle damage, quadriceps, muscle soreness, muscle echo intensity, treatment timing, knee extensors
- MeSH
- leg, humans, exercise, double-blind method, muscle fatigue, adolescent, adult, male, quadriceps muscle, young adult, plyometric exercise, biomarkers, low-level light therapy
6 autores
- Carolina Gassen Fritsch🇧🇷Universidade Federal de Ciências da Saúde de Porto Alegre
- Maurício Pinto Dornelles🇧🇷Universidade Federal de Ciências da Saúde de Porto Alegre
- Lucas Severo-Silveira🇧🇷Universidade Federal de Ciências da Saúde de Porto Alegre
- Vanessa Bernardes Marques🇧🇷Universidade Federal de Ciências da Saúde de Porto Alegre
- Isabele de Albuquerque Rosso🇧🇷Universidade Federal de Ciências da Saúde de Porto Alegre
- Bruno Manfredini Baroni🇧🇷 · autor de correspondenciaUniversidade Federal de Ciências da Saúde de Porto Alegre
Resumen
El texto original del estudio, en el idioma en que se publicó.
Promising effects of phototherapy on markers of exercise-induced muscle damage has been already demonstrated in constant load or isokinetic protocols. However, its effects on more functional situations, such as plyometric exercises, and when is the best moment to apply this treatment (pre- or post-exercise) remain unclear. Therefore, the purpose of this study was to investigate the effect of low-level laser therapy (LLLT) before or after plyometric exercise on quadriceps muscle damage markers. A randomized, double-blinded, placebo-controlled trial was conducted with 24 healthy men, 12 at pre-exercise treatment group and 12 at post-exercise treatment group. Placebo and LLLT (810 nm, 200 mW per diode, 6 J per diode, 240 J per leg) were randomly applied on right/left knee extensor muscles of each volunteer before/after a plyometric exercise protocol. Muscular echo intensity (ultrasonography images), soreness (visual analogue scale - VAS), and strength impairment (maximal voluntary contraction - MVC) were assessed at baseline, 24, 48, and 72 h post-exercise. Legs treated with LLLT before or after exercise presented significantly smaller increments of echo intensity (values up to 1 %) compared to placebo treatments (increased up to ∼7 %). No significant treatment effect was found for VAS and MVC, although a trend toward better results on LLLT legs have been found for VAS (mean values up to 30 % lesser than placebo leg). In conclusion, LLLT applied before or after plyometric exercise reduces the muscle echo intensity response and possibly attenuates the muscle soreness. However, these positive results were not observed on strength impairment.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial.
Confianza de la comunidad
Cargando…
¿Cuánto confías en los hallazgos de este estudio?
Comentarios
¿Algo está mal aquí?
Señala este estudio si su información, etiquetas o financiación parecen incorrectas. Un editor revisa cada señalamiento.
Información educativa sobre investigación publicada. No es consejo médico ni una recomendación para empezar o dejar nada.