Objective: The aim of the present study was to analyze how the blood flow restriction (BFR) training has been used by professionals in Brazil, focusing on the user's profile, control of training variables and the rate of occurrence of adverse effects. Methods: Eighty-six health professionals with experience in BFR training were interviewed through a digital questionnaire prepared by the authors containing 17 questions about the characteristics of using the method. Results: BFR training has been used in Brazil for the past 5 years, mainly by Physical Education professionals who attend healthy adults, athletes and elderly people with several objectives. Most of the professionals seem to follow specific scientific recommendations for the BFR training prescription, except for a small portion of participants, especially regarding pressure control to BFR. Low-severity immediate adverse effects associated with the method were observed at reasonable rates and no serious effects were reported. Conclusion: Since a small number of professionals reported inattention to scientific recommendations for controlling this variable, these adverse effects may be associated with inadequate control of vascular occlusion pressure.Key-words: hypoxia, physical training, rehabilitation, therapeutic occlusion, vascular occlusion devices.
