Light Dose Database

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This is the EMF Channel database of light therapy study doses. After getting the results, click to view more study details. Only successful studies are included. 99% of the studies here are on humans, not animals. This database is a work in progress. Many thanks to Vlad for his PBM database. When the data here references his work, the detail page includes a link to the PBM spreadsheet.

Red light therapy bone dose

Tendonitis in Athletes Red Light Dose

Journal:

830 nm light-emitting diode (led) phototherapy significantly reduced return-to-play in injured university athletes: a pilot study

Wavelength:
830
Irradiance:
0.05
Condition:
Tendonitis
Outcome:

830 nm, 0.05 mW/cm^2, 60 J/cm^2, 1200 s relieved tendonitis

Red light therapy pain decrease dose

Achilles Tendonitis Inflammation Red Light Dose

Journal:

A randomised, placebo controlled trial of low level laser therapy for activated Achilles tendinitis with microdialysis measurement of peritendinous prostaglandin E2 concentrations

Wavelength:
904
Irradiance:
20
Condition:
Tendonitis
Outcome:

Reduce Achilles tendinitis pain and inflammation.

Red light therapy pain decrease dose

Epicondylitis (Chronic Tendinopathy, Tendonitis) Relief Red Light Dose

Journal:

The Effectiveness of Therapeutic Class IV (10 W) Laser Treatment for Epicondylitis

Wavelength:
810, 980
Irradiance:
10,000
Condition:
Tendonitis
Outcome:

Improve tendonitis functionality, increase strength, decrease pain, and improve extension in tendinitis

Science study red light therapy motor function

Carpal Tunnel with Rheumatoid Arthritis Red Light Dose

Journal:

Effect of Low Level Laser Therapy in Rheumatoid Arthritis Patients With Carpal Tunnel Syndrome

Wavelength:
780
Irradiance:
50
Condition:
Arthritis, Carpal Tunnel, Tendonitis
Outcome:

Decrease wrist pain and increase wrist functionality in carpal tunnel patients who have rheumatoid arthritis.

Science study red light therapy motor function

Carpal Tunnel with Splinting Red Light Therapy Dose

Journal:

The Effectiveness of Conservative Treatments of Carpal Tunnel Syndrome: Splinting, Ultrasound, and Low-Level Laser Therapies

Wavelength:
904
Irradiance:
2.4
Condition:
Carpal Tunnel, Pain, Tendonitis
Outcome:

Decrease carpal tunnel pain.

Science study red light therapy motor function

Carpal Tunnel with Splint Red Light Dose

Journal:

Comparison of Splinting and Splinting Plus Low-Level Laser Therapy in Idiopathic Carpal Tunnel Syndrome

Wavelength:
830
Irradiance:
30
Condition:
Carpal Tunnel, Tendonitis
Outcome:

Increase carpal tunnel strength and mobility.

Science study red light therapy motor function

Carpal Tunnel Function and Pain Improvement Red Light Dose

Journal:

Comparison of the Long-Term Effectiveness of Physiotherapy Programs With Low-Level Laser Therapy and Pulsed Magnetic Field in Patients With Carpal Tunnel Syndrome

Wavelength:
904
Irradiance:
150
Condition:
Carpal Tunnel, Pain, Tendonitis
Outcome:

Decrease carpal tunnel pain.

Science study red light therapy motor function

Carpal Tunnel Pain Reduction Red Light Therapy Dose

Journal:

Placebo-controlled Investigation of Low-Level Laser Therapy to Treat Carpal Tunnel Syndrome

Wavelength:
780
Irradiance:
30
Condition:
Carpal Tunnel, Tendonitis
Outcome:

Reduce carpal tunnel pain, increase meridian nerve conduction in carpal tunnel wrists.

Science study red light therapy motor function

Carpal Tunnel Wrist Splint and Red Light Therapy Dose

Journal:

Low-level Laser Therapy With a Wrist Splint to Treat Carpal Tunnel Syndrome: A Double-Blinded Randomized Controlled Trial

Wavelength:
810
Irradiance:
50
Condition:
Carpal Tunnel, Tendonitis
Outcome:

Increase hand grip strength in carpal tunnel wrists.

About the EMF Channel Light Dose Database

Many people purchase red light therapy or neuromuscular electrical stimulation devices without knowing optimal doses for the results they want to see. The right dose is especially key to light therapies, which have optimal windows of wavelength and energy delivered. Treatment doses outside of those windows will nullify results or harm the user. I took the results from successful EMF studies when these studies included:

  • Photobiomodulation (Red Light Therapy, Blue Light Therapy, Low Level Light Therapy)
  • Transcutaneous Electromagnetic Nerve Stimulation (TENS)
  • Pulsed Electromagnetic Field (PEMF) Therapy
  • Neuromuscular Electrical Stimulation (NMES)

Many studies do not report exact dose parameters they used. They are therefore not included here, even the study reported a therapeutic result.

Light Dose Parameters
Term
Parameter
Time
Seconds
Power
milliwatts (mW) or Watts (W)
Total Dose Energy
joules (J) = power x time = Watts x seconds
Wavelength
nanometers
Frequency
Hertz (Hz)
Spot Size
cm(2) (centimeters squared)
Duty Cycle
percentage of time light source is on during one cycle
Power Density (or Intensity)
Watts per centimeters squared (W/cm(2) = power / probe size
Energy Density (Fluence)
jules per centimeters square (J/cm(2)) = total energy delivered by the probe size

Source: Turchin, Curtis. Light and Laser Therapy: Clinical Procedures 6th Edition (p. 16)

Image by Thomas-Suisse from Pixabay