Surgical masks do not increase the risk of heat stroke during mild exercise in hot and humid environment

Issei Kato, Yuta Masuda, Kei Nagashima*

*この研究の対応する著者

研究成果: Article査読

抄録

Surgical masks are widely used for the prevention of respiratory infections. However, the risk of heat stroke during intense work or exercise in hot and humid environment is a concern. This study aimed to examine whether wearing a surgical mask increases the risk of heat stroke during mild exercise in such environment. Twelve participants conducted treadmill exercise for 30 min at 6 km/h, with 5% slope, 35°C ambient temperature, and 65% relative humidity, while wearing or not a surgical mask (mask and control trials, respectively). Rectal temperature (Trec), ear canal temperature (Tear), and mean skin temperature (mean Tskin) were assessed. Skin temperature and humidity of the perioral area of the face (Tface and RHface) were also estimated. Thermal sensation and discomfort, sensation of humidity, fatigue, and thirst were rated using the visual analogue scale. Trec, Tear, mean Tskin, and Tface increased during the exercise, without any difference between the two trials. RHface during the exercise was greater in the mask trial. Hot sensation was greater in the mask trial, but no influence on fatigue and thirst was found. These results suggest that wearing a surgical mask does not increase the risk of heat stroke during mild exercise in moist heat.

本文言語English
ページ(範囲)325-333
ページ数9
ジャーナルIndustrial Health
59
5
DOI
出版ステータスPublished - 2021 10月

ASJC Scopus subject areas

  • 公衆衛生学、環境および労働衛生
  • 健康、毒物学および変異誘発

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