Modulation of exercise-induced muscular damage and hyperalgesia by different 630 nm doses of light-emitting diode therapy (LEDT) in rats.

What the authors concluded

In all LEDT groups, plasma CK activity was reduced to levels similar to those measured in the [sedentary control] group. Paw withdrawal threshold decreased in the [passive recovery] group (-11.9 g) when compared to the [sedentary control] group (2.2 g; p < 0.01) and it was attenuated in the group LEDT 4.2 J/cm2 (-3.3 g, p < 0.05). Less leukocyte infiltration and edema and fewer necrotic areas w

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 1.2 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.