ArticleInternational journal of environmental research and public health2026
Decline in Work Ability over Time and Its Association with Physical Performance Among Senior Workers: A Prospective Cohort Study.
Article in International journal of environmental research and public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundWork ability (WA) decreases with age. This cohort study investigated changes in WA over time among senior workers and explored associations between WA and objectively measured physical performance.
methodsA questionnaire regarding WA (0-100 points), work status and general health was sent out to individuals aged 50-65 years (
resultsA total of 13,404 participants responded to the baseline questionnaire (56%) and 8474 (63%) responded at follow-up. Overall, WA decreased by -8.3 points over time (95% CI: -8.9 to -7.7). The decline was similar between genders and among senior workers with high or low physical work demands. The steepest decline in WA was among those aged 56-59 years at baseline (-10.3 points, 95% CI: -11.5 to -9.1). Clinical examination showed that WA was positively associated with higher isokinetic muscle strength, handgrip strength and functional capacity after adjusting for confounders (all
conclusionsWork ability decreased over time among all senior workers. Clinical subgroup analyses revealed positive associations between physical performance and WA. Future longitudinal studies are needed to determine whether improving physical performance can reduce age-related decline in work ability.
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