Measuring and characterizing force exposure during computer mouse use
| Autor: | Mats Hagberg, Ewa Wigaeus Hjelm, David Rempel, Peter Johnson |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Adult
Male medicine.medical_specialty Sex Factors Voluntary contraction Risk Factors Sex factors Task Performance and Analysis Confidence Intervals medicine Humans Musculoskeletal Diseases Computer Peripherals Muscle Skeletal Mathematics Finger force Analysis of Variance Work (physics) Public Health Environmental and Occupational Health Middle Aged Biomechanical Phenomena Surgery Occupational Diseases Female Occupational exposure Analysis of variance Computer mouse Biomedical engineering |
| Zdroj: | Scandinavian Journal of Work, Environment & Health. 26:398-405 |
| ISSN: | 1795-990X 0355-3140 |
| DOI: | 10.5271/sjweh.560 |
| Popis: | Objectives The purpose of this study was to develop and validate a sampling strategy for characterizing the finger force exposures associated with computer mouse use. Methods Mouse forces were measured from 16 subjects (8 men, 8 women), on 3 separate days, at their actual workstations while they performed (i) their regular work, (ii) a battery of standardized tasks, and (iii) simulated mouse use. Results The forces applied to the mouse did not vary between hours or days. During regular work, the mouse was used 78.0 (SD 40.7) times per hour, accounting for 23.7 (SD 9.5)% of the worktime. The mean forces applied to the sides and button of the mouse were low, averaging 0.6 % (0.35 N) and 0.8 % (0.43 N) of the maximal voluntary contraction, respectively. The forces applied to the mouse during the standardized tasks differed from the regular work forces; however, there were moderate-to-strong correlations between the 2 measures. Conclusions With respect to performing exposure assessment studies, the 3 major findings were (i) mouse force measurements should be made while subjects perform their actual work in order to characterize the absolute applied force accurately, (ii) the forces applied to the mouse during the performance of a short battery of standardized tasks can be used to characterize relative exposure and identify computer operators or work situations for which higher forces are applied to the mouse, and (iii) subjects cannot accurately simulate mouse forces. |
| Databáze: | OpenAIRE |
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