Impact of face masks during the treadmill exercise tests.

Introduction And Objective: There is little literature on the use of face masks in a treadmill test (TMT) during the COVID-19 pandemic. The objective of this study is to analyze the impact of face masks during a TMT performed during the prepandemic (without face mask) and postpandemic (with face mask) era.

Methods: Retrospective observational unicentric study of patients undergoing TMT.