Petsonk E L, Hancock J, Boyles C
Am Ind Hyg Assoc J. 1983 May;44(5):368-73. doi: 10.1080/15298668391404987.
Recently promulgated federal regulations mandate the provision of an emergency, self-contained, oxygen-supplying breathing device (self-contained self-rescuer, SCSR) to all underground coalminers. In order to assist in defining the potential limitations of this new device, we measured the responses of ten healthy coal mine inspectors to submaximal steady-state treadmill exercise with and without the SCSR. During the last minute of exercise, blood oxygen saturation averaged 98.3% and mouth pressure swing 15.6 cm H2O with the device, compared to 94.8% and 10.4 cm H2O without it. Mean respiratory rates were decreased to 25/min with the SCSR from 28/min without it. Blood pressure, core temperature and heart rate were unaffected. We conclude that in healthy individuals on submaximal exercise there is little evidence of a significant adverse effect of the new device.
最近颁布的联邦法规要求为所有地下煤矿工人配备一种应急的、自给式的供氧呼吸装置（自救器，SCSR）。为了帮助确定这种新装置的潜在局限性，我们测量了十名健康的煤矿检查员在有和没有SCSR的情况下进行次最大稳态跑步机运动时的反应。在运动的最后一分钟，使用该装置时血氧饱和度平均为98.3%，口腔压力波动为15.6厘米水柱，而不使用该装置时分别为94.8%和10.4厘米水柱。使用SCSR时平均呼吸频率从不使用时的28次/分钟降至25次/分钟。血压、核心体温和心率未受影响。我们得出结论，在进行次最大运动的健康个体中，几乎没有证据表明这种新装置会产生显著的不良影响。
