Implementation of neck/shoulder exercises for pain relief among industrial workers: A randomized controlled trial

Mette K. Zebis*, Lars L. Andersen, Mogens T. Pedersen, Peter Mortensen, Christoffer H. Andersen, Mette M. Pedersen, Marianne Boysen, Kirsten K. Roessler, Harald Hannerz, Ole S. Mortensen, Gisela Sjøgaard

*Corresponding author af dette arbejde

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    Abstrakt

    Background: Although leisure-time physical activity is important for health, adherence to regular exercise is challenging for many adults. The workplace may provide an optimal setting to reach a large proportion of the adult population needing regular physical exercise. This study evaluates the effect of implementing strength training at the workplace on non-specific neck and shoulder pain among industrial workers. Methods. Cluster-randomized controlled trial involving 537 adults from occupations with high prevalence of neck and shoulder pain (industrial production units). Participants were randomized to 20 weeks of high-intensity strength training for the neck and shoulders three times a week (n = 282) or a control group receiving advice to stay physically active (n = 255). The strength training program followed principles of progressive overload and periodization. The primary outcome was changes in self-reported neck and shoulder pain intensity (scale 0-9). Results: 85% of the participants followed the strength training program on a weekly basis. In the training group compared with the control group, neck pain intensity decreased significantly (-0.6, 95% CI -1.0 to -0.1) and shoulder pain intensity tended to decrease (-0.2, 95% CI -0.5 to 0.1, P = 0.07). For pain-cases at baseline (pain intensity > = 3) the odds ratio - in the training group compared with the control group - for being a non-case at follow-up (pain intensity < 3) was 2.0 (95% CI 1.0 to 4.2) for the neck and 3.9 (95% CI 1.7 to 9.4) for the shoulders. Conclusion: High-intensity strength training relying on principles of progressive overload can be successfully implemented at industrial workplaces, and results in significant reductions of neck and shoulder pain.

    OriginalsprogEngelsk
    Artikelnummer205
    TidsskriftBMC Musculoskeletal Disorders
    Vol/bind12
    DOI
    StatusUdgivet - 3 okt. 2011

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