下肢着装压迫对皮肤血流的影响与作用机制研究

发布时间：2018-04-30 23:18

本文选题：着装压迫 + 下肢　；参考：《苏州大学》2010年硕士论文

【摘要】： 近年来,紧身裤袜、塑身内衣、牛仔裤等各类紧身服装被众多消费者所青睐,紧身压迫可能对人体形态和生理系统产生正面或负面的复杂影响,着装压迫的安全性和舒适性越来越多地受到从业人员和消费者的重视。本课题着眼于调查下肢着装压迫对皮肤血流的影响。选择五位健康的男研究生为受试者,以脚踝和小腿为研究对象,采用血压计对下肢交替加压(无压和有压)模拟着装压迫状态,测试受压部位的皮肤血流信号。主要从压力大小、姿势的影响、部位的差异三个方面比较了压迫引起的皮肤血流变化,同时利用小波分析方法对皮肤血流信号进行频谱分析,并结合微循环控制理论探讨压迫引起皮肤血流变化的作用机制。分析皮肤血流的变化,得到的主要结果如下:(1)施加压力在一定范围内,受压部位的皮肤血流量增加,且血流增量随压力的增加而变大;(2)当压力超过某一临界值时,皮肤血流量增量开始减小,躺姿下的该临界值小于坐姿,而脚踝处的临界值比小腿处高;(3)如果压力进一步增加,皮肤血流又会转而下降。对血流信号进行小波分析发现:加压时,肌原性活动峰振幅增加,其特征频率下降。分析压迫引起皮肤血流变化的作用机制:一方面一定的机械压迫使蕴含在皮肤里的微动脉被挤压,微动脉里的血流量减少,流向其连接的毛细血管内的血流受阻,为了获得同样的氧浓度,毛细血管开放时间延长,从而毛细血管的开闭活动频率减小,毛细血管开放率增加,皮肤血流增加;另一方面当外部压迫大于微动脉平均血压,部分微动脉血管被压扁,流向其连接的毛细血管内的血流被阻断,从而皮肤血流减少。皮肤血流的上升、增量大小以及下降是以上两方面作用平衡的结果。本研究结果将为紧身类服装压力设计与开发提供生理学的基础,同时也为消费者的穿着与选择提供科学指导。
[Abstract]:In recent years, tight fitting tights, plastic underwear, jeans and other tight clothing have been favored by many consumers. Tight compression may have a positive or negative impact on human form and physiological system. The safety and comfort of loading oppression are being paid more and more attention by employees and consumers.
The subject is to investigate the influence of lower extremity dressing compression on skin blood flow. Five healthy male postgraduates were selected as subjects with ankle and calf as the research object, and the pressure meter was used to simulate the compression state of the lower limb alternately pressure (no pressure and pressure) and to test the skin blood flow signals at the compression position, mainly from the size of pressure and posture. The variation of skin blood flow caused by oppression was compared in three aspects. At the same time, the skin blood flow signal was analyzed by wavelet analysis, and the mechanism of skin blood flow changes caused by compression was discussed with the theory of microcirculation control. The changes of skin blood flow were analyzed. The main results were as follows: (1) exerting pressure In a certain range, the blood flow of the skin increased and the increment of blood flow increased with the increase of pressure. (2) when the pressure exceeded a certain critical value, the increment of blood flow in the skin began to decrease, the critical value under the lying position was smaller than the sitting position, and the critical value at the ankle was higher than that in the small leg; (3) the blood flow would turn if the pressure was further increased. The wavelet analysis of blood flow signals showed that the peak amplitude of myogenic activity increased and the characteristic frequency decreased.
Analysis of the mechanism of skin blood flow changes caused by compression: on the one hand, certain mechanical compression makes the microarteries contained in the skin squeezed, the blood flow in the arteriole decreases, and the blood flow in the capillaries connected to the blood is blocked. In order to obtain the same oxygen concentration, the opening time of the capillary blood tube is prolonged, thus the capillaries are open and closed. On the other hand, when the external compression is greater than the mean blood pressure of the Microartery, the blood flow in the capillary of the capillary is blocked and the blood flow is reduced. The blood flow of the skin is reduced. The increase of the skin blood flow, the increment and the decline are two aspects. The results of this study will provide a physiological basis for the design and development of tight clothing pressure, and provide scientific guidance for the wear and selection of consumers.

【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TS941.17;R33

【引证文献】