Effects of Low-Level Laser Therapy on Skeletal Muscle Repair

Abstract

A review of the literature was performed to demonstrate the most current applicability of low-level laser therapy (LLLT) for the treatment of skeletal muscle injuries, addressing different lasers, irradiation parameters, and treatment results in animal models. Searches were performed in the PubMed/MEDLINE, SCOPUS, and SPIE Digital Library databases for studies published from January 2006 to August 2013 on the use of LLLT for the repair of skeletal muscle in any animal model. All selected articles were critically appraised by two independent raters. Seventeen of the 36 original articles on LLLT and muscle injuries met the inclusion criteria and were critically evaluated. The main effects of LLLT were a reduction in the inflammatory process, the modulation of growth factors and myogenic regulatory factors, and increased angiogenesis. The studies analyzed demonstrate the positive effects of LLLT on the muscle repair process, which are dependent on irradiation and treatment parameters. The findings suggest that LLLT is an excellent therapeutic resource for the treatment of skeletal muscle injuries in the short-term.

Photobiomodulation and different macrophages phenotypes during muscle tissue repair

“…Among the therapeutic interventions for the treatment of muscle injuries, photobiomodulation (PBM) has been extensively investigated (for review, see8). Photobiomodulation consists of the use of low‐power non‐thermal light using a source (such as laser or LED) to modulate inflammation and healing (see9, 10, 11 and references therein).…”

The Effectiveness of Photobiomodulation Therapy Versus Cryotherapy for Skeletal Muscle Recovery: A Critically Appraised Topic

“…1 After intense exercise, PBMT confines the degree of exercise-induced muscle damage, limiting the need for a large inflammatory process. 2 It also reduces patient-reported muscle soreness, modulates growth factors and myogenic regulatory factors, and increases the formation of new red blood cells locally. 2 These effects make PBMT a valuable treatment option for muscle recovery; however, PBMT has not become a mainstream tool for muscle recovery in clinical practice.…”

“…2 It also reduces patient-reported muscle soreness, modulates growth factors and myogenic regulatory factors, and increases the formation of new red blood cells locally. 2 These effects make PBMT a valuable treatment option for muscle recovery; however, PBMT has not become a mainstream tool for muscle recovery in clinical practice. For decades, cryotherapy has been a popular modality for postexercise muscle recovery utilized by many athletes, coaches, and sports medicine practitioners, despite recent challenges to its effectiveness.…”

O uso terapêutico do LASER de Baixa Intensidade (LBI) em algumas patologias e sua relação com a atuação na Fonoaudiologia

“…Já o LASER infravermelho pode ser utilizado para melhorar o trofismo muscular e reduzir a parestesia 16,27 . O fonoaudiólogo acaba, muitas vezes, por não conseguir atuar devido ao quadro de lesões e, com isso, há um prejuízo do prognóstico para o paciente.…”

“…Essas fases apresentam características específicas e fundamentais para a adequada restauração da estrutura e função do tecido muscular lesado 14,15 . f) Regeneração de nervos periféricos -Nervos periféricos são alvo constante de lesões traumáticas que podem resultar em déficits motores com o decorrer do tempo que alteram suas propriedades mecânicas e neuroquímicas, bem como podem proporcionar complicações irreversíveis 3,12,[16][17][18] . g) Efeito anti-bactericida: A terapia fotodinâmica (PDT) é uma modalidade de fototerapia que se utiliza do LASER vermelho associado a um fotossensibilizador (ou corante, que geralmente Deste modo, esse tipo de radiação é utilizado com fins terapêuticos e, para que tal finalidade seja atingida, os comprimentos de onda geralmente utilizados são o vermelho e o infravermelho.…”