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Thermal thresholds, vibrotactile thresholds and finger systolic blood pressures in dockyard workers exposed to hand-transmitted vibration

Thermal thresholds, vibrotactile thresholds and finger systolic blood pressures in dockyard workers exposed to hand-transmitted vibration
Thermal thresholds, vibrotactile thresholds and finger systolic blood pressures in dockyard workers exposed to hand-transmitted vibration

Objectives: To quantify neurological dysfunction in workers exposed to hand-transmitted vibration using alternative neurological tests. To relate the neurological findings to the results of vascular tests and the symptoms reported by subjects with vibration-induced white finger. Methods: Thermal thresholds (for perception of heat and cold), vibrotactile thresholds (for perception of vibration at 31.5 and 125 Hz) and finger systolic blood pressures were measured in 107 dockyard workers, including 31 controls and 76 workers exposed to hand-transmitted vibration (50 reporting finger blanching consistent with vibration-induced white finger). A history of vibration exposure and symptoms associated with hand-transmitted vibration were obtained for each subject. Results: Increased duration of exposure to vibration resulted in a deterioration of both thermal thresholds and vibrotactile thresholds. Finger systolic blood pressures were lower in subjects reporting finger blanching and were related to the extent of blanching on the measured finger. Reported sensations of tingling were not correlated with any of the threshold measures; thermal thresholds and vibrotactile thresholds showed evidence of deterioration with reports of increasing numbness. Both numbness and tingling were correlated with reports of finger blanching. Finger systolic blood pressures were not correlated with either thermal or vibrotactile thresholds. Conclusions: Vascular and neurological signs produced by hand-transmitted vibration can occur independently, but the principal vascular symptom (i.e. attacks of blanching) and some commonly reported neurological symptoms (i.e. sensations of numbness and tingling) may be related.

Finger systolic blood pressures, Thermal thresholds, Vibration-induced white finger, Vibrotactile thresholds
0340-0131
377-386
Lindsell, C. J.
b724b896-71a8-4afa-9d3f-d153d63a963b
Griffin, M. J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Lindsell, C. J.
b724b896-71a8-4afa-9d3f-d153d63a963b
Griffin, M. J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Lindsell, C. J. and Griffin, M. J. (1999) Thermal thresholds, vibrotactile thresholds and finger systolic blood pressures in dockyard workers exposed to hand-transmitted vibration. International Archives of Occupational and Environmental Health, 72 (6), 377-386. (doi:10.1007/s004200050389).

Record type: Article

Abstract

Objectives: To quantify neurological dysfunction in workers exposed to hand-transmitted vibration using alternative neurological tests. To relate the neurological findings to the results of vascular tests and the symptoms reported by subjects with vibration-induced white finger. Methods: Thermal thresholds (for perception of heat and cold), vibrotactile thresholds (for perception of vibration at 31.5 and 125 Hz) and finger systolic blood pressures were measured in 107 dockyard workers, including 31 controls and 76 workers exposed to hand-transmitted vibration (50 reporting finger blanching consistent with vibration-induced white finger). A history of vibration exposure and symptoms associated with hand-transmitted vibration were obtained for each subject. Results: Increased duration of exposure to vibration resulted in a deterioration of both thermal thresholds and vibrotactile thresholds. Finger systolic blood pressures were lower in subjects reporting finger blanching and were related to the extent of blanching on the measured finger. Reported sensations of tingling were not correlated with any of the threshold measures; thermal thresholds and vibrotactile thresholds showed evidence of deterioration with reports of increasing numbness. Both numbness and tingling were correlated with reports of finger blanching. Finger systolic blood pressures were not correlated with either thermal or vibrotactile thresholds. Conclusions: Vascular and neurological signs produced by hand-transmitted vibration can occur independently, but the principal vascular symptom (i.e. attacks of blanching) and some commonly reported neurological symptoms (i.e. sensations of numbness and tingling) may be related.

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More information

Published date: 1 September 1999
Keywords: Finger systolic blood pressures, Thermal thresholds, Vibration-induced white finger, Vibrotactile thresholds

Identifiers

Local EPrints ID: 429464
URI: http://eprints.soton.ac.uk/id/eprint/429464
ISSN: 0340-0131
PURE UUID: 3f7018ac-9e28-4b94-a9c2-396f0c0038f3
ORCID for M. J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

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Date deposited: 27 Mar 2019 17:30
Last modified: 07 Oct 2020 02:50

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