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Long-term exposure to solvents impairs vigilance and postural control in serigraphy workers
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2005 (English)In: International Archives of Occupational and Environmental Health, ISSN 0340-0131, Vol. 78, no 6, 510-515 p.Article in journal (Refereed) Published
Abstract [en]

Objectives: To investigate the effects of solvent exposure (mainly aromatic hydrocarbons) on central regulation of vigilance and postural control, particularly in occasional difficult situations that provide sensorial conflicts. Methods: Twenty-two workers occupationally exposed to solvents for an average of approximately 6 years and 21 controls were compared by the use of a questionnaire on their state of vigilance and quality of sleep and on performance measurements of postural control under six different sensorimotor conditions. Their current median exposure levels to aromatic hydrocarbons was 80.1 mg/m3. Results: Exposed workers reported reduced alertness but not disturbance of sleep quality compared with controls. Moreover, they had the worst postural performance in all sensory conditions and demonstrated a reduced ability to resolve sensory conflict situations. The precision of stance was clearly affected by solvent exposure in contrast with energy consumption required to regulate proper balance control. Conclusions: The depressive effect of aromatic hydrocarbon exposure on cortical and subcortical structures controlling vigilance and postural stability could lead to increased risk of occupational accident, especially due to falls. The detection of central neurotoxic effects by posturographic and vigilance tests could be useful in preventive strategies. © Springer-Verlag 2005.

Place, publisher, year, edition, pages
2005. Vol. 78, no 6, 510-515 p.
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Medical and Health Sciences
URN: urn:nbn:se:liu:diva-30004DOI: 10.1007/s00420-005-0609-7Local ID: 15447OAI: diva2:250823
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2011-01-12

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Ledin, Torbjörn
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Faculty of Health SciencesOto-Rhiono-Laryngology and Head & Neck SurgeryDepartment of ENT - Head and Neck Surgery UHL
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