In adults with chronic upper-trapezius myofascial trigger points, 808 nm laser at 16 J per point (8 sessions) was not superior to sham for pain (primary outcome); neck disability (secondary) improved more with laser.
Source: Effect of photobiomodulation on trapezius myofascial pain: a randomized, sham-controlled, double-blind clinical trial. Silva RKDN, Rocha AMMF, Oliveira VMA, et al. Lasers in Medical Science. 2026;41(1):169. doi:10.1007/s10103-026-04964-8
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