College of Kinesiology, University of Saskatchewan, Saskatoon, SK S7N 5B2, Canada.
School of Rehabilitation Science, University of Saskatchewan, Saskatoon, SK S7N 5B2, Canada.
Int J Environ Res Public Health. 2021 Oct 14;18(20):10766. doi: 10.3390/ijerph182010766.
COVID-19 transmission is prevalent during ice-hockey; however, it is unknown whether wearing face masks as a mitigation strategy affects hockey players' performance. We used a randomized cross-over study to compare wearing a surgical mask to a sham mask (control) in youth hockey players (21 males, 5 females, 11.7 ± 1.6 y) during a simulated hockey period (cycle ergometry; six shifts of 20 s of "easy" pedaling (40% peak power), 10 s of "hard" pedaling (95% peak power), 20 s of "easy" pedaling, with shifts separated by 5 min rests). A seventh shift involved two 20 s Wingate tests separated by 40 s rest. Heart rate, arterial oxygen saturation and vastus lateralis tissue oxygenation index (hemoglobin saturation/desaturation) was assessed each shift. On-ice testing was conducted with the maximal Yo-Yo intermittent recovery test. No differences between mask and control conditions for performance were found (Wingate average power: 245 ± 93 vs. 237 ± 93 W, Peak power: 314 ± 116 vs. 304 ± 115 W, on-ice distance: 274 ± 116 vs. 274 ± 110 m) and for heart rate or arterial oxygen saturation during simulated hockey shifts. Tissue oxygenation index was lower from shifts one to six for males ( < 0.05) and shift seven for females ( < 0.01) while wearing a mask. Wearing a face mask had no effect on performance in hockey players with only minor effects on muscle oxygenation. ClinicalTrials.gov (NCT04874766) (accessed on 6 May 2021).
在冰球比赛中 COVID-19 传播很普遍；然而，佩戴口罩作为一种缓解策略是否会影响曲棍球运动员的表现尚不清楚。我们使用随机交叉研究比较了在青少年曲棍球运动员（21 名男性，5 名女性，11.7 ± 1.6 岁）进行模拟曲棍球比赛期间佩戴外科口罩与 sham 口罩（对照）的情况（测功计；六个 20 秒的“轻松”踩踏阶段（40%峰值功率），10 秒的“用力”踩踏阶段（95%峰值功率），20 秒的“轻松”踩踏阶段，每个阶段之间休息 5 分钟）。第七个阶段包括两次 20 秒的 Wingate 测试，间隔 40 秒休息。每一个阶段都评估心率、动脉血氧饱和度和股外侧肌组织氧合指数（血红蛋白饱和度/去饱和度）。在冰上测试中进行了最大的 Yo-Yo 间歇性恢复测试。在口罩和对照条件下，运动表现（Wingate 平均功率：245 ± 93 与 237 ± 93 W，峰值功率：314 ± 116 与 304 ± 115 W，冰上距离：274 ± 116 与 274 ± 110 m）以及模拟曲棍球比赛期间的心率或动脉血氧饱和度均无差异。男性在佩戴口罩时，从第一阶段到第六阶段（ < 0.05）和女性在第七阶段（ < 0.01）的组织氧合指数较低。在曲棍球运动员中，佩戴口罩对运动表现没有影响，仅对肌肉氧合有轻微影响。ClinicalTrials.gov（NCT04874766）（2021 年 5 月 6 日访问）。
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