Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul 03722, Korea.
Int J Environ Res Public Health. 2022 Oct 28;19(21):14106. doi: 10.3390/ijerph192114106.
Non-pharmaceutical intervention such as wearing a mask during the pandemic of SARS-CoV-2 is one of the most important ways to prevent the spread of the virus. However, despite high effectiveness and easy to access, the biggest problem is 'discomfort'. The purpose of this study was to measure the changes of cardiopulmonary response and related factors affecting breathing discomfort when wearing a mask during vigorous exercise. Fifteen healthy male adults participated in this study. The experimental protocol consisted of three conditions: no mask; KF-94 mask; and sports mask. Each condition consisted of three stages: stage I, 2 m/s on even level; stage II, 2 m/s with 5° inclination; and stage III, 3 m/s on even level. Oxygen saturation (SaO) and heart rate (HR), partial pressure of carbon dioxide (pCO), energy expenditure index (EEI), in-mask temperature, humidity, and a five-point scale questionnaire to evaluate subjective discomfort were measured. The results show that there was a significantly higher discomfort score in mask conditions compared with no mask ( < 0.05) and only pCO change significantly related to subjective discomfort during exercise ( < 0.05). Moreover, the pCO washout was significantly disturbed when wearing a sports mask in stages 2 and 3, which was related to wearer subjective discomfort.
在 SARS-CoV-2 大流行期间，非药物干预（如佩戴口罩）是预防病毒传播的最重要手段之一。然而，尽管口罩具有高效性和易于获得的特点，但最大的问题是“不舒适”。本研究旨在测量剧烈运动时佩戴口罩对心肺反应的影响，并评估影响呼吸不适的相关因素。15 名健康男性成年人参与了这项研究。实验方案包括三种条件：不戴口罩；KF-94 口罩；和运动口罩。每种条件都包括三个阶段：第一阶段，在水平面上以 2m/s 的速度行走；第二阶段，在 5°倾斜面上以 2m/s 的速度行走；第三阶段，在水平面上以 3m/s 的速度行走。测量了血氧饱和度（SaO）和心率（HR）、二氧化碳分压（pCO）、能量消耗指数（EEI）、口罩内温度、湿度以及用于评估主观不适的五分制问卷。结果表明，与不戴口罩相比，口罩条件下的不适感评分明显更高（<0.05），只有 pCO 的变化与运动时的主观不适显著相关（<0.05）。此外，在第二和第三阶段佩戴运动口罩时，pCO 的清除明显受到干扰，这与佩戴者的主观不适有关。
