Photobiomodulation applied to chronic obstructive pulmonary disease (copd): A review

Photobiomodulation is the use of visible and infrared light through light emitting diodes - LED without thermal and cytotoxic reactions.It was carried out a literature review with this studyto understand photobiomodulation applied to Chronic Obstructive Pulmonary Disease - COPD.It was carried out a survey in January 2023, in the SciELO, Lilacs, Pubmed, Medline and Google Scholar databases. With the descriptors “Low-level light therapy” AND “Chronic obstructive pulmonary disease” AND “Phototherapy” and in English “Low-level light therapy” AND “Pulmonary Disease, Chronic Obstructive” AND “Phototherapy”. It was selected 04 papers after applying the inclusion criteria. From the analysis of the data, it was possible to verify that 50% of the papers said that photobiomodulation improved the functional capacity of the muscles of the lower limbs in patients with COPD.In addition, 25% of the selected studies demonstrated improvement in pulmonary ventilatory mechanics and elastance, restoration of the balance between pro-inflammatory and anti-inflammatory cytokines, reduction in collagen deposition in the airways and decrease in interstitial tissue thickening. We conclude that photobiomodulation is an effective, low-cost, easy-to-adhesion and promising resource in the rehabilitation process of patients with COPD, for reversing the evolutionary processes of the disease and improving functionality.