Immediate Effects of Photobiomodulation in Vocally Healthy Individuals Undergoing Vocal Loading Activity: A Triple-Blind Randomized Clinical Trial.

Objective: To analyze the immediate effects of photobiomodulation (PBM) on vocal parameters of vocally healthy individuals subjected to a vocal load activity.

Methods: This was a triple-blind, randomized clinical trial. Individuals who did not present with vocal complaints, vocal quality deviations, or structural or functional disorders in the larynx were recruited and randomly assigned to the EXPERIMENTAL group (laser) or PLACEBO group (control).

Phonatory Tasks and Outcome Measures for Assessing Vocal Fatigue: A Scoping Review.

Objectives: To map the phonatory tasks and the result measures used to evaluate vocal fatigue in vocally healthy individuals.

Methods: This is a scoping review based on the following research question: What are the phonatory tasks and outcome measures used for the evaluation of vocal fatigue in vocally healthy individuals? The construction of the search strategy followed the PCC strategy; population: vocally healthy adult individuals; concept: phonatory tasks and vocal evaluation measures; and context: vocal fatigue. The search was performed electronically in the databases Medline (PubMed), LILACS (BVS), SCOPUS (Elsevier), Web of Science (Clarivate), EMBASE, and COCHRANE.