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Rehabilitation Practice and Science

Translated Title

經皮神經電刺激對皮表溫度的影響

Abstract

Previous reports have shown that transcutaneous electric nerve stimulation (TENS) can accelerate the rate of chronic wound healing, but the mechanism for such is unknown. It has been proposed that TENS may enhance healing by increasing cutaneous blood flow. In the present study, we investigated the effects of TENS on local skin temperature. Infrared thermography was used to measure the changes of local skin temperature after treatment with TENS. Twelve subjects, 6 men and 6 women, were enrolled and underwent the following four different TENS modes in random sequences: (1) sham stimulation (control), (2) perception threshold TENS, (3) below motor threshold TENS, and (4) above motor threshold TENS. No significant difference in skin temperature occurred when subjects received TENS below the motor threshold. In contrast, when above motor threshold TENS was administered, the local temperature increased proximally, but decreased distally. The effects of TENS on blood flow and temperature is limited to local areas. Taken together, these data suggest that the above motor threshold TENS-induced local temperature effect is possibly due to a muscle contraction-coupled rise in blood flow. Thus, when TENS is applied for the purpose of increasing skin temperature or blood flow, the above motor threshold should be used. Furthermore, the electrodes should be placed over the proximal parts of the muscles that are to be stimulated.

Language

Traditional Chinese

First Page

81

Last Page

88

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