Study on Light Reflection from Skin During Whole-Body Photobiomodulation Therapy in Adults Aged 18 to 30

What this Trial Is About

Researchers are studying how light reflects off human skin during whole-body photobiomodulation therapy PBMT, which uses low-intensity red and infrared light to affect biological tissues. The trial focuses on men and women aged 18 to 30 years and aims to understand how different skin phototypes influence light reflection when the therapy is applied without skin contact. This research is led by Universidade Federal de Sao Carlos. Participants will receive whole-body photobiomodulation therapy using a device that emits red light 660 nm and infrared light 850 nm for a total of about 10 minutes5 minutes for each wavelength. The light source will be held 20 cm from the skin during treatment. Participants will be grouped by skin phototype using the Fitzpatrick scale to compare light reflection across skin types. The reflection will be measured in multiple body areas including the brachial biceps, abdomen, lumbar region, front and back of the thighs, and calves. During the therapy session, light reflection will be measured using specialized sensors and a powermeter. This measurement will occur only during the light therapy irradiation on the day of the procedure. Researchers will analyze reflection data to see how skin type affects light interaction with the skin. The study involves healthy volunteers with normal to overweight BMI, and participation is expected to last for the duration of the single treatment session.

Light Reflection on Human Skin in Whole-Body Photobiomodulation Therapy