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Reductions in finger blood flow in males and females induced by 125-Hz vibration: association with vibration perception thresholds

Ye, Ying and Griffin, Michael J. (2011) Reductions in finger blood flow in males and females induced by 125-Hz vibration: association with vibration perception thresholds Journal of Applied Physiology, 111, (6), pp. 1606-1613. (doi:10.1152/japplphysiol.00407.2011). (PMID:21921246).

Record type: Article


Vibration of one hand reduces blood flow in the exposed hand and in the contralateral hand not exposed to vibration, but the mechanisms involved are not understood. This study investigated whether vibration-induced reductions in finger blood flow are associated with vibrotactile perception thresholds mediated by the Pacinian channel, and considered gender differences in both vibration thresholds and vibration-induced changes in digital circulation. With force and vibration applied to the thenar eminence of the right hand, finger blood flow and finger skin temperature were measured in the middle fingers of both hands at 30-s intervals during seven successive 4-minute periods: (i) pre-exposure with no force or vibration, (ii) pre-exposure with force, (iii) vibration 1, (iv) rest with force, (v) vibration 2, (vi) post exposure with force, and (vii) recovery with no force or vibration. A 2-N force was applied during periods (i) to (vi) and 125-Hz vibration at 0.5 and 1.5 ms-2 r.m.s. (unweighted) was applied during periods (iii) and (v), respectively. Vibrotactile thresholds were measured at the thenar eminence of right hand using the same force, contact conditions, and vibration frequency. When the vibration magnitude was greater than individual vibration thresholds, changes in finger blood flow were correlated with thresholds (with both 0.5 and 1.5 ms- r.m.s. vibration): subjects with lower thresholds showed greater reductions in finger blood flow. Females had lower vibrotactile thresholds and showed greater vibration-induced reductions in finger blood flow. It is concluded that mechanoreceptors responsible for mediating vibration perception are involved in the vascular response to vibration

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e-pub ahead of print date: 15 September 2011
Published date: 1 December 2011
Organisations: Human Sciences Group


Local EPrints ID: 198077
ISSN: 8750-7587
PURE UUID: 21f35317-2b13-49dd-9800-afd686338282
ORCID for Michael J. Griffin: ORCID iD

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Date deposited: 29 Sep 2011 14:18
Last modified: 18 Jul 2017 11:20

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