Department of Hygiene and Epidemiology, Faculty of Health Sciences, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, M. Sklodowskiej-Curie 9, 85-094 Bydgoszcz, Poland.
Department of Hygiene and Epidemiology, Faculty of Health Sciences, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, M. Sklodowskiej-Curie 9, 85-094 Bydgoszcz, Poland.
J Therm Biol. 2014 Oct;45:75-80. doi: 10.1016/j.jtherbio.2014.08.001. Epub 2014 Aug 19.
The cardiovascular, autonomic and thermal response to whole-body cryostimulation exposure are not completely known. Thus the aim of this study was to evaluate objectively and noninvasively autonomic and thermal reactions observed after short exposure to very low temperatures. We examined 25 healthy men with mean age 30.1 ± 3.7 years and comparable anthropomorphical characteristic. Each subject was exposed to cryotherapeutic temperatures in a cryogenic chamber for 3 min (approx. -120 °C). The cardiovascular and autonomic parameters were measured noninvasively with Task Force Monitor. The changes in core body temperature were determined with the Vital Sense telemetric measurement system. Results show that 3 min to cryotherapeutic temperatures causes significant changes in autonomic balance which are induced by peripheral and central blood volume changes. Cryostimulation also induced changes in core body temperature, maximum drop of core temperature was observed 50-60 min after the stimulation. Autonomic and thermal reactions to cryostimulation were observed up to 6 h after the exposure and were not harmful for examined subjects.
全身冷冻刺激暴露后的心血管、自主和热反应尚不完全清楚。因此，本研究旨在客观、无创地评估短时间暴露于极低温度后观察到的自主和热反应。我们检查了 25 名健康男性，平均年龄为 30.1 ± 3.7 岁，具有相似的人体测量特征。每个受试者在冷冻室中暴露于冷冻治疗温度 3 分钟（约-120°C）。心血管和自主参数使用任务力监测器进行无创测量。核心体温的变化使用 Vital Sense 遥测测量系统确定。结果表明，3 分钟的冷冻治疗温度会引起自主平衡的显著变化，这是由外周和中央血容量变化引起的。冷冻刺激还会引起核心体温的变化，刺激后 50-60 分钟观察到核心体温的最大下降。冷冻刺激后的自主和热反应可持续 6 小时，对检查对象没有危害。
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