http://hdl.handle.net/11296/5r422e
研究生: 張淑萍
研究生(外文): Shu-Ping Chang
論文名稱: 遠紅外線足部照射改善下肢循環之成效評估
遠紅外線照射已逐漸在臨床治療與居家保健上被重視,並應用在下肢循環改善的照護上,但對於遠紅外線照射的具體生理變化及改善成效少被驗證,本研究在探討遠紅外線足部照射改善下肢循環之成效,藉由對足部遠紅外線照射後之足部體表溫度與血流變化,以呈現其改善下肢循環的成效,提供臨床照護時的實證依據。
研究目的為:1.了解遠紅外線足部照射,其下肢皮膚表面溫度變化;2.了解遠紅外線足部照射,其下肢局部血流的變化;3.比較不同距離遠紅外線足部照射,其下肢皮膚表面溫度與局部血流改變的差異。
以志願參與之50歲以上健康成人為研究對象。以紅外線熱像測溫儀與雷射多普勒血流儀分別測量體表溫度與下肢局部血流變化。
研究設計為類實驗單組交叉試驗,每位受測者在不同時間接受兩次實驗:1.距離足背30㎝遠紅外線照射、2.距離20㎝遠紅外線照射,共45位個案。受測者於實施介入前先休息10分鐘後,接受第一次生理測量(體表溫度、局部血流及血壓)。於實驗介入處置第5、10、15、20、25、30、35、40分鐘及實驗介入處置後第5、10、15、20、25分鐘,測量體表溫度及局部血流;於實驗結束後第25分鐘,測量血壓,並比較各測量值之間的差異。
研究結果顯示:1.在溫度變化方面,遠紅外線足部照射40分鐘中,以右足背體表溫度上升最多,在距離20cm時,溫度上升5.0℃-8.0℃,結束照射後溫度延遲效果可以持續25分鐘,並具有統計學上的顯著差異(p<0.001);在距離30cm時,溫度上升2.6℃-3.9℃,結束照射後第25分鐘時平均溫度與前測值相同。2.在循環變化方面,當遠紅外線照射足部距離20cm時,左大拇趾的回光強度上升7.1、右大拇趾的回光強度上升3.4,距離30cm時,左大拇趾的回光強度上升5.9、右大拇趾的回光強度上升4.9,皆具顯著差異(p值<0.001)。3.遠紅外線照射足部40分鐘、距離20㎝對於提升體表溫度及局部血流的改變大於距離30㎝。
綜合研究的結果,遠紅外線照射足部40分鐘、距離20㎝對於改善下肢循環的生理成效較佳。藉由此主題之探討可了解遠紅外線足部照射對於改善下肢循環的成效,提供未來護理臨床照護、教學及研究之參考。
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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