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휴식과 운동 중 COVID-19 대응 보건용 마스크 착용이 호흡·심혈관계 반응 및 착용감에 미치는 영향
정재연 ( Jae-yeon Jung ),강찬혁 ( Chanhyeok Kang ),성유찬 ( Yuchan Seong ),장세혁 ( Se-hyeok Jang ),이주영 ( Joo-young Lee ) 한국의류산업학회 2020 한국의류산업학회지 Vol.22 No.6
This study explores the effects of facemasks on respiratory, thermoregulatory, cardiovascular responses during exercise on a treadmill and at rest. Five male subjects (25.8 ± 0.8 y, 171.8 ± 9.2 cm in height, 79.8 ± 28.1 kg in weight) participated in the following five experimental conditions: no mask, KF80, KF94, KF99, and N95. Inhalation resistance was ranked as KF80 < KF94 < N95 < KF99 and dead space inside a mask was ranked as KF80 = KF94 < N95 < KF99. The surface area covered by a mask was on average 1.1% of the total body surface area. The results showed no significant differences in body core temperature, oxygen consumption (VO2), carbon dioxide production (VCO2), heart rate or subjective perception among the five experimental conditions; however, cheek temperature, respiratory ventilation and blood pressure were greater for KF80 or KF94 conditions when compared to KF99 or N95 conditions (p<0.05). The differences among mask conditions are attributed to the dead space or specific designs (cup type vs pleats type) rather than the filtration level. In addition, the results suggest that improving mask design can help mitigate respiratory resistance from increased filtration.