Dose–response relationship between hand–arm vibration exposure and vibrotactile thresholds among roadworkers
| Autor: | Bente Ulvestad, Karl-Christian Nordby, Karl Færden, Lars-Kristian Lunde, Thomas Clemm |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
construction
occupational health practice Adult Male hygiene / occupational hygiene medicine.medical_specialty Exposure Assessment Exposure action value Fifth fingers Cumulative Exposure Audiology Vibration Fingers 03 medical and health sciences Vibration perception 0302 clinical medicine Occupational Exposure Statistical significance medicine Humans Prospective Studies Hand-Arm Vibration Syndrome Norway business.industry Construction Industry Public Health Environmental and Occupational Health Middle Aged 030210 environmental & occupational health Dose–response relationship Cross-Sectional Studies Linear Models Female neurophysiology Vibration exposure business 030217 neurology & neurosurgery Environmental Monitoring Hand arm |
| Zdroj: | Occupational and Environmental Medicine |
| ISSN: | 1470-7926 1351-0711 |
| DOI: | 10.1136/oemed-2019-105926 |
| Popis: | BackgroundTesting of vibration perception threshold (VPT) at the fingertips as a quantitative measure of tactile sensitivity is a commonly used tool in diagnosing hand–arm vibration syndrome. There is limited research on dose–response relationships between hand–arm vibration (HAV) exposure and VPT on an individual level.AimsAssess possible dose–response relationships on an individual level between HAV exposure and VPT at the fingertips.MethodsWe assessed average daily vibration exposure (m/s2A8) and cumulative lifetime HAV exposure for 104 participants from different departments in a road maintenance company based on vibration measurements and questionnaires. VPT was measured based on the technical method described in ISO 13091-1:2005 using octave frequencies 8–500 Hz. We investigated associations using linear regression models with significance level p≤0.05.ResultsThe participants were either exposed to rock drills (n=33), impact wrenches (n=52) or none of these tools (n=19). Exposure to rock drills and impact wrenches was associated with elevated VPT for all seven test frequencies in the second and fifth fingers of both hands. A dose–response with the daily exposure measure m/s2(A8) was found based on 1.2 m/s2(A8) for impact wrenches, and 5.4 m/s2(A8) for rock drills. A stronger association was found with the cumulative exposure for rock drills compared with impact wrenches, and for the second finger compared with the fifth finger.ConclusionsHAV exposure was associated with elevated VPT, also at exposure levels below the common exposure action value of 2.5 m/s2(A8). Lowering the HAV exposure can contribute to prevent increasing VPTs in these workers. |
| Databáze: | OpenAIRE |
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