| Autor: |
Darnell ME; Department of Sports Medicine and Nutrition, School of Health and Rehabilitation Sciences, University of Pittsburgh, 3860 South Water Street, Pittsburgh, PA 15203, USA., Quinn TD; National Personal Protective Technology Laboratory (NPPTL), National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention (CDC), 626 Cochrans Mill Rd, Pittsburgh, PA 15236, USA., Carnahan SP; Department of Orthopedic Surgery, University of Pittsburgh Medical Center, University of Pittsburgh, 3200 South Water Street, Pittsburgh, PA 15203, USA., Carpenter T; Department of Athletics, University of Pittsburgh, 3502 Aliquippa Street, Pittsburgh, PA 15261, USA., Meglino N; Department of Sports Medicine and Nutrition, School of Health and Rehabilitation Sciences, University of Pittsburgh, 3860 South Water Street, Pittsburgh, PA 15203, USA., Yorio PL; Strategic Programs Office (SPO), Human Resources Office (HRO), Office of the Chief Operating Officer (OCOO), 4770 Buford Hwy, Atlanta, GA 30341, USA., Doperak JM; Department of Orthopedic Surgery, University of Pittsburgh Medical Center, University of Pittsburgh, 3200 South Water Street, Pittsburgh, PA 15203, USA. |
| Abstrakt: |
This study compared exercise performance and comfort while wearing an N95 filtering facepiece respirator (N95), cloth mask, or no intervention control for source control during a maximal graded treadmill exercise test (GXT). Twelve Division 1 athletes (50% female, age = 20.1 ± 1.2, BMI = 23.5 ± 1.6) completed GXTs under three randomized conditions (N95, cloth mask, control). GXT duration, heart rate (HR), respiration rate (RR), transcutaneous oxygen saturation (SpO2), transcutaneous carbon dioxide (TcPCO2), rating of perceived exertion (RPE), and perceived comfort were measured. Participants ran significantly longer in control (26.06 min) versus N95 (24.20 min, p = 0.03) or cloth masks (24.06 min, p = 0.04). No differences occurred in the slope of HR or SpO2 across conditions (p > 0.05). TcPCO2 decreased faster in control (B = −0.89) versus N95 (B = 0.14, p = 0.02) or cloth masks (B = −0.26, p = 0.03). RR increased faster in control (B = 8.32) versus cloth masks (B = 6.20, p = 0.04). RPE increased faster in the N95 (B = 1.91) and cloth masks (B = 1.79) versus control (B = 1.59, p < 0.001 and p = 0.05, respectively). Facial irritation/itching/pinching was higher in the N95 versus cloth masks, but sweat/moisture buildup was lower (p < 0.05 for all). Wearing cloth masks or N95s for source control may impact exercise performance, especially at higher intensities. Significant physiological differences were observed between cloth masks and N95s compared to control, while no physiological differences were found between cloth masks and N95s; however, comfort my differ. |
