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Effect of application of Menthol on the forearm on tactile sensation in healthy subjects Kenta Kiyomoto 1 , Mayumi Nakada 2 1Division of Occupational Therapy, Nihon Welfare and Rehabilitation School 2Department of Occupational Therapy, School of Health and Social Services, Saitama Prefectural University Keyword: 健常者 , (メントール) , (求心路遮断) , (触覚閾値) , (触覚識別) , Healthy subjects , Menthol , Deafferentation , Tactile threshold , Tactile discrimination pp.253-264
Published Date 2016/6/15
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 Recently, studies have shown that selective temporary forearm cutaneous anesthesia improved finger tactile perception. Increased cortical hand representation accompanied this finding. Researchers have reported that Menthol applied to the skin caused superficial analgesia. We hypothesized that the application of menthol patches to the forearm will improve the hand's tactile perception. The aim of this study was to investigate the effect of the application of menthol patches to the forearm on hand tactile perception. To accomplish this, we conducted two separate experiments. Experiment one had a group of seven healthy subjects and investigated forearm tactile threshold after the application of menthol patches. The patches application resulted in an increase in forearm tactile threshold. The study indicated that cutaneous anesthesia of the forearm occurred after applying menthol patches. Experiment two was a randomized, controlled study that investigated the tactile perception of the hand in two groups of 19 normal subjects. The experimental group applied a menthol patch to the forearm while the control group received a placebo patch. The results indicate a statistically significant improvement of Moving 2pd in one segment of the experimental hand. However, the study found no statistically significant difference between the two groups in tactile threshold or Static 2pd in any hand segments. The study concludes that application of menthol patches to the forearm results in increased tactile threshold of the forearm and improved Moving 2pd of the hand. These findings suggest that application of topical menthol patches to the forearm will enhance tactile spatial acuity of the finger.


Copyright © 2016, Japanese Association of Occupational Therapists. All rights reserved.

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電子版ISSN 印刷版ISSN 0289-4920 日本作業療法士協会

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