Acute vibrotactile threshold shifts in relation to force and hand-arm vibration
Acute vibrotactile threshold shifts in relation to force and hand-arm vibration
Background: to investigate the acute effects of vibration and force level on vibrotactile perception following short-term exposure to hand-arm vibration (HAV). Methods: 12 individuals attended the test, and each of them completed a set of grasping tasks between 10 N and 80 N while being exposed to four intensities of HAV at 125 Hz, ranging from 5.5 to 44.0 m/s2 (unweighted), for three minutes. The vibrotactile perception threshold (VPT, at 125 Hz) on the fingertip was assessed before and after the exposure.
Results: vibration caused considerable reductions in VPT, and the higher the HAV amplitude, the more the VPT shifted. There were also noticeable VPT shifts brought on by the force increase, but the force increasing from 40 N to 80 N cannot make more difference at higher vibration levels.
Conclusions: vibrotactile perception was sensitive to the vibration level, and was affected by applied hand force when the vibration intensity was modest. With high vibration levels, the further sensorineural response to the force is limited after the force reaches a certain level.
hand-arm vibration, grip exertions, vibrotactile perception, temporary threshold shift
Gao, Shuxiang
e3d36e2e-05c8-48ec-a576-9311d554d7a7
Ye, Ying
5cfc9fff-c24f-4e7c-8a97-c78436d79966
10 April 2023
Gao, Shuxiang
e3d36e2e-05c8-48ec-a576-9311d554d7a7
Ye, Ying
5cfc9fff-c24f-4e7c-8a97-c78436d79966
Gao, Shuxiang and Ye, Ying
(2023)
Acute vibrotactile threshold shifts in relation to force and hand-arm vibration.
Proceedings, 86 (1), [8].
(doi:10.3390/proceedings2023086008).
Abstract
Background: to investigate the acute effects of vibration and force level on vibrotactile perception following short-term exposure to hand-arm vibration (HAV). Methods: 12 individuals attended the test, and each of them completed a set of grasping tasks between 10 N and 80 N while being exposed to four intensities of HAV at 125 Hz, ranging from 5.5 to 44.0 m/s2 (unweighted), for three minutes. The vibrotactile perception threshold (VPT, at 125 Hz) on the fingertip was assessed before and after the exposure.
Results: vibration caused considerable reductions in VPT, and the higher the HAV amplitude, the more the VPT shifted. There were also noticeable VPT shifts brought on by the force increase, but the force increasing from 40 N to 80 N cannot make more difference at higher vibration levels.
Conclusions: vibrotactile perception was sensitive to the vibration level, and was affected by applied hand force when the vibration intensity was modest. With high vibration levels, the further sensorineural response to the force is limited after the force reaches a certain level.
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proceedings-86-00008
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Published date: 10 April 2023
Venue - Dates:
The 15th International Conference on<br/>Hand-Arm Vibration, France, Nancy, 2023-06-06 - 2023-06-09
Keywords:
hand-arm vibration, grip exertions, vibrotactile perception, temporary threshold shift
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Local EPrints ID: 479871
URI: http://eprints.soton.ac.uk/id/eprint/479871
ISSN: 2504-3900
PURE UUID: 92735461-22ae-4321-b598-5bd4bd06eb9f
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Date deposited: 28 Jul 2023 16:32
Last modified: 18 Mar 2024 03:09
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Author:
Shuxiang Gao
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