Markus D Jakobsen, Emil Sundstrup, Mikkel Brandt, Lars L Andersen
Journal: Musculoskeletal science & practice 2018;34():89-96
PMID: 29414757
Musculoskeletal pain in the neck, shoulder and lower back is the most common and costly work-related health problem. While physical exercise has been shown to be beneficial for back and neck/shoulder pain, only a few studies have evaluated the effects on pain in multiple body regions. The aim of this study was to evaluate the effect of workplace versus home-based physical exercise on the pressure pain threshold (PPT) and musculoskeletal pain intensity in multiple body regions. This study consisted of secondary analysis of a randomised controlled trial. 200 female healthcare workers from three hospitals were randomised to 10 weeks of: 1) home-based physical exercise (HOME) performed alone during leisure time for 5 × 10 min per week or 2) workplace physical exercise (WORK) performed in groups during working hours for 5 × 10 min per week and up to 5 motivational coaching sessions. PPT (neck, lower back, lower leg) and perceived pain intensity in multiple body regions (feet, knee, hips, lower and upper back, elbow, hand, shoulder, neck, and head) were measured at baseline and 10-week follow-up. In some of the body regions, PPT and pain intensity improved more following WORK than HOME exercises. Significant better improvements were found for PPT in the lower back, and pain intensity in the lower back and feet. HOME did not improve more than WORK for any of the measurements. The authors concluded that physical exercise recommendations for healthcare workers should consider the setting, i.e. performing supervised group-based exercise at work and motivational coaching sessions is more effective than exercising alone at home.
BACKGROUND
While physical exercise is beneficial for back and neck-shoulder pain, only few intervention studies have evaluated effects on pain in multiple body regions. Furthermore, direct measurement of pain threshold can provide additional information to self-reported pain intensity.
OBJECTIVES
To evaluate the effect of workplace versus home-based physical exercise on pressure pain threshold (PPT) and musculoskeletal pain intensity in multiple body regions.
STUDY DESIGN
Secondary analysis of an examiner-blinded, cluster randomized controlled trial with allocation concealment.
METHOD
Two-hundred female healthcare workers from 18 departments at three hospitals were cluster-randomized to 10 weeks of: 1) home-based physical exercise (HOME) performed alone during leisure time for 5 × 10 min per week or 2) workplace physical exercise (WORK) performed in groups during working hours for 5 × 10 min per week and up to 5 motivational coaching sessions. PPT (neck, lower back, lower leg) and perceived pain intensity in multiple body regions (feet, knee, hips, lower and upper back, elbow, hand, shoulder, neck, and head) were measured at baseline and 10-week follow-up.
RESULTS
In some of the body regions, PPT and pain intensity improved more following WORK than HOME. Between-group differences at follow-up (WORK vs. HOME) were 41 kPA [95% CI 13-70, effect size (ES): 0.22] for PPT in the lower back, and -0.7 [95% CI -1.0-0.3, ES: 0.26] and -0.6 points [95% CI -0.9--0.2, ES: 0.23] for pain intensity in the lower back and feet, respectively. HOME did not improve more than WORK for any of the measurements.
CONCLUSION
Physical exercise recommendations for healthcare workers should consider the setting, i.e. performing supervised group-based exercise at work and motivational coaching sessions is more effective than exercising alone at home.
Copyright © 2018. Published by Elsevier Ltd.
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