http://hdl.handle.net/11296/5r422e
研究生: 张淑萍
研究生(外文): Shu-Ping Chang
论文名称: 远红外线足部照射改善下肢循环之成效评估
远红外线照射已逐渐在临床治疗与居家保健上被重视,并应用在下肢循环改善的照护上,但对於远红外线照射的具体生理变化及改善成效少被验证,本研究在探讨远红外线足部照射改善下肢循环之成效,藉由对足部远红外线照射后之足部体表温度与血流变化,以呈现其改善下肢循环的成效,提供临床照护时的实证依据。
研究目的为:1.了解远红外线足部照射,其下肢皮肤表面温度变化;2.了解远红外线足部照射,其下肢局部血流的变化;3.比较不同距离远红外线足部照射,其下肢皮肤表面温度与局部血流改变的差异。
以志愿参与之50岁以上健康成人为研究对象。以红外线热像测温仪与雷射多普勒血流仪分别测量体表温度与下肢局部血流变化。
研究设计为类实验单组交叉试验,每位受测者在不同时间接受两次实验:1.距离足背30㎝远红外线照射、2.距离20㎝远红外线照射,共45位个案。受测者於实施介入前先休息10分钟后,接受第一次生理测量(体表温度、局部血流及血压)。於实验介入处置第5、10、15、20、25、30、35、40分钟及实验介入处置后第5、10、15、20、25分钟,测量体表温度及局部血流;於实验结束后第25分钟,测量血压,并比较各测量值之间的差异。
研究结果显示:1.在温度变化方面,远红外线足部照射40分钟中,以右足背体表温度上升最多,在距离20cm时,温度上升5.0℃-8.0℃,结束照射后温度延迟效果可以持续25分钟,并具有统计学上的显著差异(p<0.001);在距离30cm时,温度上升2.6℃-3.9℃,结束照射后第25分钟时平均温度与前测值相同。2.在循环变化方面,当远红外线照射足部距离20cm时,左大拇趾的回光强度上升7.1、右大拇趾的回光强度上升3.4,距离30cm时,左大拇趾的回光强度上升5.9、右大拇趾的回光强度上升4.9,皆具显著差异(p值<0.001)。3.远红外线照射足部40分钟、距离20㎝对於提升体表温度及局部血流的改变大於距离30㎝。
综合研究的结果,远红外线照射足部40分钟、距离20㎝对於改善下肢循环的生理成效较佳。藉由此主题之探讨可了解远红外线足部照射对於改善下肢循环的成效,提供未来护理临床照护、教学及研究之参考。
The far infrared radiation has been paid gradual attention to in clinical treatment and home health care, and it is used for improving lower limb circulation. However, the specific physiological effect and improvement effect of far infrared radiation are seldom verified. This study discusses the effect of far infrared foot irradiation on improving lower limb circulation. The effect on improving the lower limb circulation is displayed by the changes in the foot surface temperature and blood flow after the foot is exposed to far infrared radiation, so as to provide demonstration criteria for clinical care.
Research Purposes: 1) to understand the lower limb skin surface temperature change in the far infrared foot radiation; 2) to understand the variance in lower limb local blood flow in far infrared foot radiation; 3) to compare the changes in lower limb skin surface temperature and local blood flow in far infrared foot radiation at different distances.
The 50 years old or over healthy adult volunteers are taken as research subjects. The infrared thermometer and laser Doppler flowmeter are used to measure the body surface temperature and lower limb local blood flow changes.
The research design is quasi-experiment single group cross matching, each subject receives experiment twice at different timings: 1. far infrared radiation 30㎝ away from the dorsum of foot, 2. far infrared radiation 20㎝ away, there are 45 cases. The subject rests for 10 minutes before the intervention is implemented, and then receives the first physiological measurement (body surface temperature, local blood flow and blood pressure). The body surface temperature and local blood flow are measured at 5, 10, 15, 20, 25, 30, 35, 40 min of experimental intervention and 5, 10, 15, 20 and 25 min after experimental intervention. The blood pressure is measured at 25 min after the experiment is finished, and the measured values are compared.
The findings show 1. in terms of temperature change, during the 40 minutes far infrared foot radiation, the surface temperature of the dorsum of right foot rises most, the temperature rise is 5.0℃-8.0℃ when the distance is 20cm. The temperature delay effect can last 25 minutes after the radiation is finished, and there is statistically significant difference (p<0.001). The temperature rise is 2.6℃-3.9℃ when the distance is 30cm, the average temperature at 25 min after radiation is equal to previous measured value. 2. In terms of circulation change, when the far infrared radiation is 20cm away from the foot, the return light intensity of the left big toe is increased by 7.1, the return light intensity of right big toe is increased by 3.4. When the distance is 30cm, the return light intensity of left big toe is increased by 5.9, the return light intensity of right big toe is increased by 4.9, there is significant difference (p value <0.001). 3. during 40 minutes far infrared radiation on the foot, the increase in the body surface temperature and local blood flow when the distance is 20㎝ is greater than that when the distance is 30㎝.
To sum up the findings, the 40 minutes far infrared radiation on the foot at distance of 20㎝ has better physiological effect on improving the lower limb circulation. The effect of far infrared foot radiation on improving lower limb circulation can be known by discussing this subject, so as to provide references for the future clinical care, teaching and study.

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