在2019年冠状病毒大流行期间,过滤面罩呼吸器(FFR)非常有效,但是人们担心它们在不同年龄段的生理影响。这项研究根据28名参与者的年龄和运动强度评估了这些影响(儿童,年轻人,和老年人)。生理参数,如呼吸频率(Rf),分钟通风(VE),二氧化碳产量(VCO2),耗氧量(VO2),心率(HR),代谢当量(MET),在有和没有FFR的跑步机测试期间,测量了FFR中的经皮氧饱和度(SpO2)以及O2和CO2浓度(杯形,平折,和一个呼气阀)。对照和FFR类型之间的生理效应没有显着差异,虽然Rf,VE,VCO2,VO2,METs,HR随运动强度的增加而增加。根据运动强度,FFR死区的O2水平下降,和CO2水平增加,但这与死腔体积或FFR类型无关。该研究得出的结论是,FFRs对日常生活或短期锻炼没有实质性影响,支持在大流行期间将其安全有效地用作公共卫生措施,并告知包容性准则和政策。
During the coronavirus disease 2019 pandemic, Filtering Facepiece Respirators (FFRs) were highly effective, but concerns arose regarding their physiological effects across different age groups. This study evaluated these effects based on age and exercise intensity in 28 participants (children, young adults, and older individuals). Physiological parameters such as respiratory frequency (Rf), minute ventilation (VE), carbon dioxide production (VCO2), oxygen consumption (VO2), heart rate (HR), metabolic equivalents (METs), percutaneous oxygen saturation (SpO2) and the concentration of O2 and CO2 in the FFRs were measured during treadmill tests with and without FFRs (cup-shaped, flat-folded, and with an exhalation valve). There was no significant difference in physiological effects between the control and FFR types, although Rf, VE, VCO2, VO2, METs, and HR increased with increasing exercise intensity. Depending on the exercise intensity, the O2 level in the FFR dead space decreased, and the CO2 level increased but this was independent of the dead space volume or FFR type. The study concluded that FFRs did not substantially impact daily life or short-term exercise, supporting their safe and effective use as a public health measure during pandemics and informing inclusive guidelines and policies.