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Validity of a computer-based risk assessment method for visual ergonomics
Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbetshälsovetenskap och psykologi, Arbetshälsovetenskap. Högskolan i Gävle, Centrum för belastningsskadeforskning.ORCID-id: 0000-0002-5055-0698
Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbetshälsovetenskap och psykologi, Arbetshälsovetenskap. Högskolan i Gävle, Centrum för belastningsskadeforskning.ORCID-id: 0000-0002-2919-3921
Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbetshälsovetenskap och psykologi, Arbetshälsovetenskap. Högskolan i Gävle, Centrum för belastningsskadeforskning.ORCID-id: 0000-0002-2091-6396
Swedish Work Environment Authority, Stockholm, Sweden.
Vise andre og tillknytning
2019 (engelsk)Inngår i: International Journal of Industrial Ergonomics, ISSN 0169-8141, E-ISSN 1872-8219, Vol. 72, s. 180-187Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Objective

To describe the development of a computer-based risk assessment method for visual ergonomics, and assess its face validity, content validity, and internal consistency.

Methods

The risk assessment method contained a questionnaire for the worker, an evaluation form for the evaluator, a section of follow-up questions based on the worker's responses, and a section for recommended changes, including an overall risk assessment with respect to daylight, lighting, illuminance, glare, flicker, work space, work object and work postures, respectively. Forty-eight trained evaluators used the method to perform 224 workplace evaluations. Content validity of the method was assessed by the completeness and distribution of responses, and internal consistency was assessed by Cronbach's alpha, Spearman's rank correlation between items and indices, and exploratory factor analysis.

Results

The proportion of missing values in items was generally low (questionnaire: 0–2.3%; evaluation form: 1.4–4.1%). In the questionnaire, items about double vision, migraine and corrective lenses had limited information content. Cronbach's alpha and item-index correlations for the indices frequency of eyestrain, intensity of eyestrain, visual symptoms, lighting conditions, frequency of musculoskeletal discomfort and intensity of musculoskeletal discomfort were satisfactory. Based on the factor analysis, suggestions for improving some of the indices were made.

Conclusion

Our findings suggest that this computer-based method is a valid instrument for assessing risks in the visual work environment. By incorporating subjective ratings by the worker as well as objective measurements of the work environment, it provides a good basis for recommendations with respect to daylight, lighting, work surfaces/material, and work object.

Relevance to industry

Visual environment factors, such as glare, can cause eyestrain, headache and musculoskeletal discomfort. This method satisfies the need of a valid tool for determining risks associated with the visual work environment. It contains both worker's ratings and objective measurements, and is designed to be used in different types of work.

sted, utgiver, år, opplag, sider
2019. Vol. 72, s. 180-187
Emneord [en]
eyestrain, musculoskeletal, lighting, illuminance, glare, flicker
HSV kategori
Identifikatorer
URN: urn:nbn:se:hig:diva-28726DOI: 10.1016/j.ergon.2019.05.006Scopus ID: 2-s2.0-85065916273OAI: oai:DiVA.org:hig-28726DiVA, id: diva2:1267101
Forskningsfinansiär
AFA Insurance, 130166Tilgjengelig fra: 2018-11-30 Laget: 2018-11-30 Sist oppdatert: 2019-08-20bibliografisk kontrollert

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Heiden, MarinaZetterberg, CamillaLindberg, Per

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