@Article{Mller2013, author = "Møller, Anne and Reventlow, Susanne and Hansen, Åse Marie and Andersen, Lars L. and Siersma, Volkert and Lund, Rikke and Avlund, Kirsten and Andersen, Johan Hviid and Mortensen, Ole Steen", title = "Does a history of physical exposures at work affect hand-grip strength in midlife? A retrospective cohort study in Denmark", journal = "Scandinavian Journal of Work, Environment & Health", year = "2013", month = "Nov", day = "39", number = "6", pages = "599--608", keywords = "cohort study; Denmark; ergonomics; hand-grip strength; muscle strength; musculoskeletal aging; occupational; physical activity; physical exposure; retrospective cohort study", abstract = "'
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OBJECTIVE ': 'The aim of this cohort study was to examine associations between physical exposures throughout working life and hand-grip strength (HGS) in midlife.
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METHODS ': 'The Copenhagen Aging and Midlife Biobank (CAMB) provided data about employment and HGS for 3843 Danes. Individual job histories, including duration of employment in specific jobs, were assigned exposures from a job exposure matrix. Exposures were standardized to ton-years (lifting 1000 kg each day in one year), stand-years (standing/walking for six hours each day in one year) and kneel-years (kneeling for one hour each day in one year). The effects of exposure-years on HGS were analyzed as linear effects and cubic splines in multivariate regression models, adjusted for potential confounders.
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RESULTS ': 'Mean age was 59 years among both genders and HGS was 49.19 kg [standard deviation (SD) 8.42] and 30.61 kg (SD 5.49) among men and women, respectively. Among men, exposure to kneel-years was associated with higher HGS [>0.030 kg (P=0.007) per exposure-year]. Ton- and stand-years were not associated with HGS among either men or women in linear analyses. In spline regression analyses, associations between ton- and stand-years and HGS were non-linear and primarily positive among men. Among women, the associations were non-linear and, according to ton-years, primarily negatively associated with HGS but statistically insignificant.
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CONCLUSION ': 'A history of physical exposures at work explained only a minor part of the variation in HGS, though exposure to kneeling throughout working life was associated with a slightly higher HGS among men. Exposure to lifting and standing/walking was not associated with HGS.
", issn = "0355-3140", doi = "10.5271/sjweh.3368", url = "https://www.sjweh.fi/show_abstract.php?abstract_id=3368", url = "https://doi.org/10.5271/sjweh.3368" }