Abstract:<b><i>Objective:</i></b> The aim of this study was to evaluate the effects of the use of both surgical masks and FFP2 respirators on the inspiratory muscle strength, metabolic parameters, heart rate, subjective perceived exertion, and dyspnea perception, before and during 30 min stable load exercise at “conversational level”. <b><i>Methods:</i></b> A randomized cross-over study was carried out. Nineteen healthy adults completed 3 conditions (without a mask, with … Show more
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