| Autor: |
Moris JM; Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA., Koh Y; Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA. |
| Abstrakt: |
The current study examined the impact of wearing a face mask (FM) at rest and while exercising on cardiorespiratory variables and aerobic performance between males and females. Nine males (21.4 ± 0.5 yr) and 9 females (21.8 ± 3.6 yr) performed a pulmonary function test and a graded maximal exercise test (GXT) on a treadmill with an FM and without an FM in random order. During the GXT, cardiorespiratory variables were measured at different exercise intensities (rest, 40%, 55%, 70%, 80%, 100% of VO 2 max) and during recovery. Regardless of sex, both males and females significantly ( p = .01) reduced their resting pulmonary functions, including forced vital capacity (18.7% and 19.6%, respectively), forced expiratory volume in one second (43.9% and 45.7%, respectively), and peak expiratory flow (85.2% and 87.5%, respectively) with an FM. During the GXT, both VO 2 and ventilation (VE) in males were significantly ( p < .01) lower with an FM only at 100% of VO 2 max, while females showed a significantly ( p < .01) lower VO 2 , VE, and tidal volume (V t ) with an FM throughout the entire GXT. The partial pressure of exhaled CO 2 was significantly ( p = .02) higher at 100% of VO 2 max with an FM only in males. Although wearing an FM reduced resting pulmonary functions and the maximal aerobic performance for both males and females, there was a clear sex-specific response during the GXT, indicating that females were less capable to adapt to the pulmonary obstruction induced by wearing an FM. |
