Norheim Arne Johan, Borud Einar, Wilsgaard Tom, De Weerd Louis, Mercer James B
a The National Research Centre in Complementary and Alternative Medicine - NAFKAM Department of Community Medicine, Health Sciences , UiT - The Arctic University of Norway , Tromsø , Norway.
b Institute of Military Medicine and Epidemiology , Norwegian Armed Forces Joint Medical Services , Sessvollmoen , Norway.
Int J Circumpolar Health. 2018 Dec;77(1):1536250. doi: 10.1080/22423982.2018.1536250.
Exposure to cold climate is an inevitable consequence of military training in Norway. Adequate peripheral microcirculation in the extremities is important to maintain temperature, and to protect against freezing cold injuries. The aim of this study was to investigate the variability in skin rewarming ability. The study subjects consisted of 260 healthy Norwegian army conscripts, following a mild cold provocation test (hands immersed in 20°C water for 1 min) using dynamic infrared thermography (DIRT). Thermal images were obtained to investigate any differences in skin rewarming ability of the hand (fingers). DIRT took place under standardised and stable study conditions. Conscripts were characterised as either slow, intermediate or rapid rewarmers. While 90% could recover, partially or completely, within 4 min to the skin temperature values before the provocation test, 10% showed a slow rewarming pattern. In the slow rewarmers, the rewarming ability was correlated with a low average temperature of the hands prior to the cooling test. The healthy young army conscripts in this study showed a large variability in their rewarming ability following a standardised mild cold provocation test.
暴露于寒冷气候是挪威军事训练不可避免的结果。四肢充足的外周微循环对于维持体温以及预防冻伤很重要。本研究的目的是调查皮肤复温能力的变异性。研究对象包括260名健康的挪威应征入伍士兵，他们在进行轻度冷激发试验（双手浸入20°C水中1分钟）后，使用动态红外热成像（DIRT）进行检测。获取热图像以研究手部（手指）皮肤复温能力的任何差异。DIRT在标准化且稳定的研究条件下进行。应征入伍士兵被分为复温慢、中等或快的类型。虽然90%的人能够在4分钟内部分或完全恢复到激发试验前的皮肤温度值，但10%的人表现出复温缓慢的模式。在复温慢的人群中，复温能力与冷却试验前手部的低平均温度相关。本研究中健康的年轻应征入伍士兵在标准化轻度冷激发试验后的复温能力表现出很大的变异性。
