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Reductions in finger blood flow induced by 125-Hz vibration: effect of location of contact with vibration

Reductions in finger blood flow induced by 125-Hz vibration: effect of location of contact with vibration
Reductions in finger blood flow induced by 125-Hz vibration: effect of location of contact with vibration

Purpose: This study investigated whether the reductions in finger blood flow induced by 125-Hz vibration applied to different locations on the hand depend on thresholds for perceiving vibration at these locations. Methods: Subjects attended three sessions during which vibration was applied to the right index finger, the right thenar eminence, or the left thenar eminence. Absolute thresholds for perceiving vibration at these locations were determined. Finger blood flow in the middle finger of both hands was then measured at 30-s intervals during five successive 5-min periods: (i) pre-exposure, (ii) pre-exposure with 2-N force, (iii) 2-N force with vibration, (iv) post-exposure with 2-N force, (v) recovery. During period (iii), vibration was applied at 15 dB above the absolute threshold for perceiving vibration at the right thenar eminence. Results: Vibration at all three locations reduced finger blood flow on the exposed and unexposed hand, with greater reductions when vibrating the finger. Vibration-induced vasoconstriction was greatest for individuals with low thresholds and locations of excitation with low thresholds. Conclusions: Differences in vasoconstriction between subjects and between locations are consistent with the Pacinian channel mediating both absolute thresholds and vibration-induced vasoconstriction.

Finger blood flow, Hand-arm vibration syndrome, Hand-transmitted vibration, Vibration-induced white finger, Vibrotactile perception thresholds
0340-0131
425-433
Ye, Ying
5cfc9fff-c24f-4e7c-8a97-c78436d79966
Griffin, Michael J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Ye, Ying
5cfc9fff-c24f-4e7c-8a97-c78436d79966
Griffin, Michael J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Ye, Ying and Griffin, Michael J. (2016) Reductions in finger blood flow induced by 125-Hz vibration: effect of location of contact with vibration. International Archives of Occupational and Environmental Health, 89 (3), 425-433. (doi:10.1007/s00420-015-1081-7).

Record type: Article

Abstract

Purpose: This study investigated whether the reductions in finger blood flow induced by 125-Hz vibration applied to different locations on the hand depend on thresholds for perceiving vibration at these locations. Methods: Subjects attended three sessions during which vibration was applied to the right index finger, the right thenar eminence, or the left thenar eminence. Absolute thresholds for perceiving vibration at these locations were determined. Finger blood flow in the middle finger of both hands was then measured at 30-s intervals during five successive 5-min periods: (i) pre-exposure, (ii) pre-exposure with 2-N force, (iii) 2-N force with vibration, (iv) post-exposure with 2-N force, (v) recovery. During period (iii), vibration was applied at 15 dB above the absolute threshold for perceiving vibration at the right thenar eminence. Results: Vibration at all three locations reduced finger blood flow on the exposed and unexposed hand, with greater reductions when vibrating the finger. Vibration-induced vasoconstriction was greatest for individuals with low thresholds and locations of excitation with low thresholds. Conclusions: Differences in vasoconstriction between subjects and between locations are consistent with the Pacinian channel mediating both absolute thresholds and vibration-induced vasoconstriction.

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e-pub ahead of print date: 8 August 2015
Published date: 1 April 2016
Keywords: Finger blood flow, Hand-arm vibration syndrome, Hand-transmitted vibration, Vibration-induced white finger, Vibrotactile perception thresholds
Organisations: University of Southampton, Human Sciences Group

Identifiers

Local EPrints ID: 406281
URI: https://eprints.soton.ac.uk/id/eprint/406281
ISSN: 0340-0131
PURE UUID: 4e292f49-72e0-4635-b104-8546569cc244
ORCID for Michael J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

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Date deposited: 10 Mar 2017 10:44
Last modified: 19 Nov 2019 02:03

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