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Takahashi Hidekazu

Affiliate Master Yamaguchi University

Concomitant changes and response patterns in finger vibrotactile perception and blood flow induced by acute exposure to hand-arm vibration

The bulletin of the Yamaguchi Medical School Volume 65 Issue 1-2 Page 11-20
published_at 2018
A050065000102.pdf
[fulltext] 996 KB
Title
Concomitant changes and response patterns in finger vibrotactile perception and blood flow induced by acute exposure to hand-arm vibration
Creators Mahbub MH
Creators Hase Ryosuke
Creators Yamaguchi Natsu
Creators Takahashi Hidekazu
Creators Kawano Yoshinao
Creators Hiroshige Keiichi
Creators Tanabe Tsuyoshi
Creators Harada Noriaki
Source Identifiers
Creator Keywords
Hand-arm vibration acute exposure vibrotactile perception blood flow human fingers
Purpose: The main purpose was to investigate the concomitant changes and response patterns in finger vibrotactile perception threshold (VPT) and finger blood flow (FBF) induced by acute exposure of healthy subjects to hand-arm vibration (HAV). Methods: Four right fingers of ten subjects were randomly exposed to vibration (31.5 Hz and 125 Hz with a frequency-weighted acceleration of 5.5 m/s^2 rms) or no vibration for 5 min. Pre- and post-exposure FBF and VPT in the exposed fingers were measured. Results: Compared to corresponding before-exposure values, vibration exposure only under 125 Hz condition caused significant increase in VPT in both index and little fingers at both 31.5 Hz and 125 Hz test frequencies. Also, exposure to acute vibration prevented significant reductions in FBF revealed for the control condition under both vibration exposure conditions, and led to a non-significant increase in FBF under125 Hz exposure condition. Conclusions: VPT responses to the current magnitude of vibration were probably predominantly mediated by the Pacinian mechanoreceptors. Acute exposure to HAV may prevent vasoconstriction resulting from the push force exerted by the exposed fingers.
Languages eng
Resource Type departmental bulletin paper
Publishers Yamaguchi University School of Medicine
Date Issued 2018
File Version Version of Record
Access Rights open access
Relations
[ISSN]0513-1812
[NCID]AA00594272
Schools 大学院医学系研究科(医学)