Vibrotactile perception at glabrous and nonglabrous skin of fingers: repeatability of measurements and changes induced by acute vibration exposure

Autor: Kenichi Hiroshige, Noriaki Harada, M. H. Mahbub, Kazuko Tanigawa, Yukio Takahashi, Taisuke Togari, H. Ohnari
Rok vydání: 2010
Předmět:
Zdroj: Journal of occupational health. 53(1)
ISSN: 1348-9585
Popis: Objectives: We sought to determine the within-session and between-session repeatability of vibrotactile perception threshold (VPT) measurements and the response patterns in VPT induced by acute exposure to short-term vibration from grasping a vibrating handle, at both glabrous and nonglabrous skin of fingers. Methods: Baseline VPT was recorded twice at glabrous and nonglabrous side of fingers in the right hand of eight healthy volunteers. Then, the subjects were exposed to three exposure conditions (vibration at 31.5 Hz and 250 Hz, and no vibration), from gripping a vertical handle by the right hand, conducted on 3 different days at an interval of 1-3 wk. After exposure, the subjects released the hand and further VPT measurements at each location were made. Results: Compared to the nonglabrous side, VPT measurements at the glabrous side demonstrated better within-session and between-session repeatability with lower coefficient of repeatability and higher intraclass correlation coefficient. After exposure, a significant increase in VPT was noted under both 31.5 Hz and 250 Hz (p
Databáze: OpenAIRE