Effectiveness of a worksite exercise program with respect to perceived work ability and sick leaves among women with physical work

Scand J Work Environ Health. 2002 Apr;28(2):85-93. doi: 10.5271/sjweh.652.


Objectives: This multicentered randomized controlled trial evaluated the effect of worksite exercise intervention on perceived work ability and sick leaves.

Methods: Women (N = 260, mean age 40 years) engaged in physically demanding laundry work were individually randomized into an intervention (N = 133) or control (N = 127) group. Perceived work ability was assessed with questionnaires at 3, 8, 12, and 15 months. Sick leave information was obtained from the personnel administration. Follow-up attendance was 100% at 3 months but declined gradually to 90% by 15 months. Both the intervention and control subjects received a 30-minute feedback on their physical capacity from a physiotherapist and individual exercise prescription and counseling. The intervention subjects also participated in worksite exercise training guided by a physiotherapist. Sixty-minute sessions (N = 26) were held once a week for 8 months. About 50% of the intervention group participated in at least two-thirds of the sessions.

Results: According to a dichotomized work ability index, at 12 months, workers with "good" or "excellent" work ability increased more in the intervention group than in the control group (11.0%, 95% CI 0.2-21.9), as did the health-related prognosis of work ability at 8 months (8.1%, 95% CI 0.5-16.3). There were no statistically significant differences between the two groups as regards job satisfaction, work ability index (including series of questions on 7 items), or sick leaves.

Conclusions: Physical activity once a week at worksites improves the perceived work ability of women with physically demanding work only slightly. Perceived work ability and sick leaves cannot be affected very positively using single-component exercise intervention. Work ability promotion may need a more multiprofessional approach.

Publication types

  • Clinical Trial
  • Multicenter Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptation, Psychological
  • Adult
  • Analysis of Variance
  • Exercise*
  • Female
  • Finland
  • Health Promotion*
  • Health Status
  • Humans
  • Male
  • Occupational Health Services*
  • Physical Fitness
  • Sick Leave / statistics & numerical data
  • Work Capacity Evaluation