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🧑 Human 🎲 Randomized trial 👥 75 participants ⌛ 6 weeks · 2021 · Egypt (Cairo)

The influence of low- intensity laser irradiation versus hyperbaric oxygen therapy on transcutaneous oxygen tension in chronic diabetic foot ulcers: a controlled randomized trial

Wadee · J Diabetes Metab Disord · 2021

The protocol this study used

Wavelength
670, 850, 880, 950 nm
Dose
4 J/cm²
Sessions
18
Per session
8 min

What the authors concluded

MANOVA revealed a statistically insignificant difference in the control group, while statistically significant improvement in both the LILI and HBOT groups." "Both LILI and HBOT may be used as adjunctive methods to improve TcPO2 that accelerate healing in CDFUs. HBOT may be favorable in the improvement of TcPO2 than LILI.

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 4 J/cm² at that intensity.

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MitoPRO 1500+
630 · 660 · 830 · 850 nm
Measured
$1,169
≈ 52 sec / session
at 76.5 mW/cm²
MitoPRO 1500X
590 · 630 · 660 · 810 · 830 · 850 nm
Measured
$1,299
≈ 75 sec / session
at 53.5 mW/cm²
PlatinumLED BIOMAX 900
480 · 630 · 660 · 810 · 830 · 850 · 1060 nm
Measured
$1,299
≈ 44 sec / session
at 90.3 mW/cm²
HoogaHealth PRO1500
660 · 850 nm
Measured
$1,199
≈ 47 sec / session
at 86 mW/cm²
Joovv Solo 3.0
660 · 850 nm
Measured
$1,499
≈ 68 sec / session
at 59.2 mW/cm²
LUMEBOX 2.0
660 · 850 nm
Measured
$629
≈ 32 sec / session
at 125 mW/cm²

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.

Source

PubMed 34900800 →

Dosimetry extracted by Vladimir Heiskanen in Photobiomodulation (PBM) research - a comprehensive database. Citation resolved against PubMed.