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Abstract
Work ability is based on the balance between personal resources and work demand. This study focused on the personal resources component of work ability. The aims of this study were to elucidate the association between work ability and cardiovascular (CV) risk factors, particularly oxidative stress, and to estimate the effect of a community-implemented lifestyle modification programme on work ability and CV risk factors. Urinary 8-iso-prostaglandin F2α (PGF2α), a biomarker of oxidative stress, was negatively correlated with psychological resources, as measured by the Work Ability Index (WAI). Overall WAI score was unchanged following the programme, while CV risk factors and antioxidative activity improved. A reduction in PGF2α levels was correlated with an improvement in subjective work ability relative to job demands, as assessed by a WAI item. Taken together, the results suggest that lifestyle modification programmes enhance the personal resources component of work ability and are associated with a reduction in oxidative stress.
Abstract
Practitioner Summary: We demonstrated the capacity of a lifestyle modification programme to augment personal resources by reducing CV risk factors such as oxidative stress. In addition, since the community-implemented lifestyle modification programme minimally affected work ability, ‘worksite’ health promotion programmes might more effectively enhance personal resources.
Acknowledgements
This work was supported by Grant-in-Aids for a University of Occupational and Environmental Health Grant for Advanced Research (2010) and Kitakyushu-city (2010) to MO. We would like to express our gratitude to the staff of the Kitakyushu Municipal Health Promotion Centre, to Dr Tomoko Ikeda for her advice, and to Dr Tomohiro Inoue, Dr Toru Honda, and Ms Tomoyo Omae for their excellent technical assistance.