Livingstone S D
J Appl Physiol. 1976 Mar;40(3):455-7. doi: 10.1152/jappl.1976.40.3.455.
The effect of exposure to cold on cold-induced vasodilation (CIVD) was examined in military personnel who had experienced a 2-wk stay in the Artic. During this time, the daily regimen consisted of long marches over difficult terrain and sleep in unheated tents with diurnal temperatures ranging from -10 to -40 degrees C. In tests conducted before and after the 2-wk period, CIVD was measured in the left middle finger of each subject by its immersion in ice water. After the 2-wk period, the value of mean finger temperature during the test had decreased relative to that observed before the test, the time required before the first vasodilative temperature increase occurred had become greater, and the finger temperature value at which the vasodilative increase was initiated has been lowered. These changes manifest a deleterious effect of cold exposure on the CIVD, contrary to expectations, and suggest that the effect of short-term cold exposure is to produce a general rather than peripheral acclimation in these subjects.
对曾在北极地区停留两周的军事人员，研究了暴露于寒冷对冷诱导血管舒张（CIVD）的影响。在此期间，日常安排包括在艰难地形上长时间行军，以及在昼夜温度为-10至-40摄氏度的无供暖帐篷中睡觉。在为期两周的时间段前后进行的测试中，通过将每个受试者的左手无名指浸入冰水中来测量CIVD。在为期两周的时间段后，测试期间的平均手指温度值相对于测试前观察到的值有所下降，首次出现血管舒张性温度升高之前所需的时间变长，并且开始血管舒张性升高的手指温度值降低。这些变化表明寒冷暴露对CIVD有有害影响，与预期相反，并表明短期寒冷暴露的影响是在这些受试者中产生全身而非外周适应。
