PDF(Pubmed)
Abstract：
The impact of exercise-specific face masks (ESFMs) in aerobically fit individuals on physiological, perceptual, respiratory, and performance responses remains unclear. How ESFMs mitigate exercise-induced bronchoconstriction (EIB) is also unknown. Thus, this study aimed to determine how an ESFM altered within-exercise physiological, perceptual, respiratory, and performance responses to graded treadmill exercise. Twenty-four individuals (11 females) completed a discontinuous graded exercise test on a treadmill under two conditions (ESFM and unmasked). Physiological, respiratory function, and perceptual measures were assessed. Performance was determined by time to exhaustion. Statistical analyses included linear mixed-effects modeling, repeated measures analysis of variance, and pairwise comparisons using an alpha value of 0.05. ESFM use significantly impaired performance (median = -150.5 s) and decreased arterial oxygen saturation at maximal intensity (mean = -3.7%). Perceptions of air hunger and work of breathing were elevated across submaximal and maximal intensities. Perceived exertion and breathing discomfort were significantly elevated submaximally but not maximally. Spirometry measures were not significantly different at termination but were significantly improved at submaximal intensities in participants with and without EIB. ESFM use in fit individuals increased perceptual discomfort, impaired performance, and augmented arterial desaturation. Respiratory function improvements were observed but were accompanied by adverse perceptual sensations. Despite this, performance impairments may limit the real-world utility of ESFMs for athletes.
摘要：
运动专用面罩（ESFMs）在有氧运动中对生理，感性的，呼吸,和性能响应仍不清楚。ESFM如何减轻运动引起的支气管收缩（EIB）也是未知的。因此，这项研究旨在确定ESFM如何改变运动内的生理，感性的，呼吸,和对分级跑步机锻炼的表现反应。24个人（11名女性）在两种条件（ESFM和未掩盖）下在跑步机上完成了不连续的分级运动测试。生理学,呼吸功能,并对感知措施进行了评估。性能取决于耗尽时间。统计分析包括线性混合效应建模，重复测量方差分析，和使用α值为0.05的成对比较。ESFM使用显着受损的表现（中位数=-150.5s），并在最大强度下降低了动脉血氧饱和度（平均值=-3.7％）。在亚最大和最大强度范围内，对空气饥饿感和呼吸功的感知都有所提高。感觉到的劳累和呼吸不适显着亚最大程度而非最大程度地升高。在有和没有EIB的参与者中，肺活量测定在终止时没有显着差异，但在亚最大强度下均有显着改善。在健康个体中使用ESFM增加了感知不适，性能受损，和增加的动脉饱和度。观察到呼吸功能改善，但伴有不良的知觉感觉。尽管如此,表现障碍可能会限制EFM对运动员的实际效用。
