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Specifics of Microcirculation under the Conditions of 'Dry' Immersion

机译:“干”浸入条件下微循环细节

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Peripheral hemodynamics was studied in the upper extremities of human subjects during a 5-day exposure in microgravity modeled by “dry” immersion (DI). The object of investigation was skin adjacent to the nail bed of the fourth finger and forearm skin. Microcirculation was measured using laser Doppler flowmetry (LDF) and computer capillaroscopy (CCS). In addition, peripheral hemodynamics was assessed in subjects donned in a Penguin axial-loading suit (PLS). The subjects were divided into two groups: with (G-2) and without (G-1) PLS. The results are the following: PLS leveled down all changes in the microcirculatory bloodstream (MCB) of the upper extremities. By the end of DI, some subjects in G-1 were found to have a more intensive tissue perfusion and increased number of capillaries, and exaggerated activity of passive mechanism of blood flow modulation Ас (one-way ANOVA, p 0.05).
机译:在通过“干”浸泡(DI)模拟的微匍匐剂中的5天暴露期间,在人类受试者的上肢中研究了外周血流动力学。调查对象是皮肤与第四手指和前臂皮肤的甲床相邻。使用激光多普勒流动(LDF)和计算机毛细管镜(CCS)测量微循环。此外,在进行企鹅轴向装载套装(PLS)中的受试者中评估外周血流动力学。将受试者分为两组:用(G-2)和没有(G-1)。结果是以下内容:PLS升级了上肢的微循环血流(MCB)的所有变化。在DI结束时,发现G-1中的一些受试者具有更强烈的组织灌注和增加的毛细血管数量,血流调制血流调节的被动机制的夸张活性ас(单向ANOVA,P <0.05)。

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