Physiological Effects of Surgical and N95 Masks During Exercise in the COVID-19 era

作者全名："Shui, Lili; Yang, Binbin; Tang, Hong; Luo, Yan; Hu, Shuang; Zhong, Xiaoqing; Duan, Jun"

作者地址："[Shui, Lili; Yang, Binbin; Tang, Hong; Luo, Yan; Hu, Shuang; Zhong, Xiaoqing; Duan, Jun] Chongqing Med Univ, Affiliated Hosp 1, Dept Resp & Crit Care Med, Youyi Rd 1, Chongqing 400016, Peoples R China"

通信作者："Duan, J (通讯作者)，Chongqing Med Univ, Affiliated Hosp 1, Dept Resp & Crit Care Med, Youyi Rd 1, Chongqing 400016, Peoples R China."

来源：AMERICAN JOURNAL OF THE MEDICAL SCIENCES

ESI学科分类：CLINICAL MEDICINE

WOS号：WOS:000861105800010

JCR分区：Q2

影响因子：3.1

年份：2022

卷号：363

期号：5

开始页：411

结束页：419

文献类型：Article

关键词：Surgical mask; N95; Cardiopulmonary exercise test; Cardiopulmonary function

摘要："Background: During the COVID-19 pandemic, studies of the physiological effects of masking during exercise have been rare. Methods: Twelve healthcare workers performed a cardiopulmonary exercise test while wearing a surgical mask, an N95 mask, or no mask. Variables were collected at rest, warm-up, anaerobic threshold, and maximal exercise. Results: From rest to maximal exercise, both the surgical and N95 masks decreased inspiratory flow, minute ventilation, and prolonged inspiratory time compared to the no mask condition. Oxygen uptake (VO2) and oxygen pulse (VO2/HR) decreased at rest, warm-up, and maximal exercise in both the surgical and N95 mask conditions (vs. no mask). At the anaerobic threshold, the surgical mask also led to a reduction of oxygen uptake and oxygen pulse compared to no mask. The maximal oxygen uptake (VO2% predicted) also decreased in both the surgical and N95 mask conditions. In addition, the severity of dyspnea increased, and exercise time decreased for both surgical and N95 masks. Compared to no mask, wearing an N95 mask led to lower breathing frequency and lower ventilation efficacy (assessed by VE/VCO2 and VE/VO2) from rest to maximal exercise (all p < 0.05 for trend). Wearing an N95 also led to retention of carbon dioxide (p < 0.05 for trend). Conclusions: Wearing a surgical mask leads to a somewhat negative impact on cardiopulmonary function, and this effect is more serious with an N95 mask. Attention should be paid to exercise while wearing surgical or N95 masks."

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