🧑 Human 🎲 Randomized trial, double-blind 👥 91 participants ⌛ 4-week treatment -> 30-day follow-up · 2017 · Brazil (Ribeirão Preto)
Effectiveness of low-level laser therapy on pain intensity, pressure pain threshold, and SF-MPQ indexes of women with myofascial pain.
Magri · Lasers Med Sci · 2017
The protocol this study used
Wavelength
780 nm
Dose
5 J/cm²
Sessions
8
Per session
10 sec
What the authors concluded
In conclusion, the LLLT active or placebo are effective in reducing the overall subjective perception of myofascial pain (VAS and SF-MPQ indexes); however, they have no effectiveness in reducing the pain sensitivity in orofacial and corporal points (PPT increase)." Comment: Even placebo was quite effective, so it seems there was not much space for any possible additional benefit from PBM. Maybe
Source
Dosimetry extracted by Vladimir Heiskanen in Photobiomodulation (PBM) research - a comprehensive database. Citation resolved against PubMed.