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Int. J. Environ. Res. Public Health 2014, 11(4), 3859-3869; doi:10.3390/ijerph110403859

12-Mo Intervention of Physical Exercise Improved Work Ability, Especially in Subjects with Low Baseline Work Ability

1,2,* , 3
1 Department of Health and Exercise & Paavo Nurmi Center, University of Turku, 20520 Turku, Finland 2 Department of Health and Exercise, Sports Institute of Finland, 19120 Vierumäki, Finland 3 Haaga-Helia the University of Applied Sciences, 19120 Vierumäki, Finland 4 UKK Institute for Health Promotion Research, 33501 Tampere, Finland 5 National Institute for Health and Welfare, 00271 Helsinki, Finland
* Author to whom correspondence should be addressed.
Received: 6 January 2014 / Revised: 25 March 2014 / Accepted: 28 March 2014 / Published: 4 April 2014
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Objectives: This study’s objective was to assess the effects of a 12-month physical exercise intervention on work ability (WAI) and cardiorespiratory fitness (CRF) in healthy working adults. Methods: The study group had 371 participants, of which 338 (212 women and 126 men) were allocated in the exercise group and 33 (17 women and 16 men) in the control group. The exercise group underwent a 12-month exercise program followed by a 12-month follow-up. WAI and CRF were evaluated at baseline, and at 4, 8, 12, and 24 study months, in both exercise and control groups. The exercise group was divided into subgroups according to baseline WAI classifications (poor/moderate, good, excellent). Results: During the 12-month exercise intervention, the exercise group increased their leisure-time physical activity by 71% (p = 0.016) and improved the mean WAI by 3% and CRF by 7% (p < 0.0001, in both), while WAI and CRF decreased in the control group (ANCOVA using age, sex and BMI as covariates, for WAI, p = 0.013 and for CRF, p = 0.008). The changes in WAI and CRF between the exercise group and control group were significantly different during the intervention (baseline vs. 12-months, p = 0.028 and p = 0.007) and after the follow-up (p = 0.001 and p = 0.040), respectively. A light positive correlation between the changes in WAI and in CRF (r = 0.19, p < 0.01) existed. WAI improvement was the highest (13%, p < 0.0001) in the subgroup having poor/moderate WAI at baseline (ANCOVA, p < 0.001). Conclusions: The improvement of WAI associated with CRF. These results suggest that a physical exercise intervention may improve work ability.
Keywords: cardiorespiratory fitness; exercise; work ability cardiorespiratory fitness; exercise; work ability
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Kettunen, O.; Vuorimaa, T.; Vasankari, T. 12-Mo Intervention of Physical Exercise Improved Work Ability, Especially in Subjects with Low Baseline Work Ability. Int. J. Environ. Res. Public Health 2014, 11, 3859-3869.

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Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert