The Inhibition of Ipsilateral and Contralateral VFR by Topical Cooling and Acupuncture of the Palmar Vibratory Site on One Side.
- VernacularTitle:一側の掌側振動部の局所冷却とはりによる同側ＶＦＲ，対側ＶＦＲの抑制
- Author:
Akihiro OZAKI
;
Hiromoto NAKANISHI
;
Masaki HIRO
- Publication Type:Journal Article
- Keywords:
Vibration-induced flexion reflex;
Topical cooling;
Acupuncture
- From:The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine
1994;57(3):209-216
- CountryJapan
- Language:Japanese
-
Abstract:
Topical cooling effects at the site of vibratory stimulation were studied using vibration-induced flexion reflex (VFR), which was induced simultaneously in both hands, as an indicator for assessment.
As a result, it was found that the inhibition of ipsilateral and contralateral VFR related to topical cooling of the palmar vibratory site on one side was caused by cooling within a limited area of the palm where the vibratory element contacted. Application of acupunctural electrical stimulation of disrupting nature in place of topical cooling to the vibratory stimulation site on one side also effectively inhibited VFR on both sides.
Although the skin temperature did not decrease on the side contralateral to the side that had been cooled, VFR was completely inhibited on both the cooled and uncooled sides.
These results suggest that the peripheral impulses which arise from cooling the vibratory site on one side act on spinal interneurons and alpha-motor neurons, which contribute bilaterally to the VFR expression, thus inducing a neurogenic inhibitory effect on VFR.
