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Visual ergonomics interventions in mail sorting facilities

Issue title: IEA 2012: 18th World congress on Ergonomics - Designing a sustainable future

Article type: Research Article

Authors: Hemphälä, H. | Hansson, G-Å. | Dahlqvist, C. | Eklund, J.

Affiliations: Division of Ergonomics and Aerosol Technology, Design Sciences, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden | Division of Occupational and Environmental Medicine, University Hospital, SE-221 85 Lund, Sweden | Division of Ergonomics, School of Technology and Health, Royal Institute of Technology, KTH, Alfred Nobels Allé 10, SE-141 52 Huddinge, Sweden

Note: [] Corresponding author. E-mail: [email protected].

Keywords: illuminance, lighting, progressive lenses, EMG, inclinometry

DOI: 10.3233/WOR-2012-0620-3433

Journal: Work, vol. 41, no. Supplement 1, pp. 3433-3437, 2012

Published: 2012
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Abstract

This study was performed between 2004 and 2011 at mail sorting facilities in Sweden. During this time, different interventions were performed. The first was a lighting intervention that had a positive impact on the postal workers, especially those with eyestrain. A new lighting system also improved the illuminance and gave better light distribution. The second intervention involved new personal spectacles for the postal workers who needed them and this had a positive effect on eyestrain. The third intervention involved a specific type of sorting spectacles for the postal workers who already used progressive lenses privately. The reading distances that the postal workers had while sorting the mail was inverted to the distances in their regular progressive lenses. The new sorting spectacles had a positive effect on head postures and on muscular activity.

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