Efficacy of high intensity laser therapy in knee osteoarthritis: a double-blind controlled randomized study

What the authors concluded

No significant differences were detected in the VAS, WOMAC-pain, WOMAC-function, WOMAC-stiffness, and WOMAC-total values of both groups in the comparisons of the two groups at the end of the treatment (in the 2nd week)" "The VAS, WOMAC-pain, WOMAC-function, WOMACstiffness, and WOMAC-total values were significantly lower in the 6th week in HILT + ET group compared to the PL + ET group (p < 0.05)

Devices that emit this wavelength

Matched on wavelength within 15nm, since LED bins vary by roughly that much and a tighter match would be false precision. Where we have an irradiance figure, the session length is the time needed to reach this study's dose of 12 J/cm² at that intensity.

Matching a wavelength is not the same as reproducing a trial. Session times assume the device's published irradiance is accurate at the distance it was measured, which on brand-claim figures is often optimistic. Where a device publishes both a peak and an average we use the average, and where it publishes a falloff curve we use the lowest figure, so these times run long rather than short. Clinical protocols also control for spot size, contact and skin type in ways a home device cannot.