Dias MR, Guttierres AP, Pinto DS, Ferreira-Júnior JB. USING A FACE MASK DOES NOT AFFECT HEART RATE, PERCEPTION OF EFFORT AND PERFORMANCE IN DIFFERENT CROSSFIT® WORKOUTS. R. Bras. Ci. e Mov. [Internet]. 2024 Mar. 11 [cited 2026 Oct. 13];31(1). Available from: https://portalrevistas.ucb.br/index.php/rbcm/article/view/14875