Background
Low back pain (LBP) is a common disorder among nurses, and multisite pain, which can lead to work disability, is a common problem among those nurses with LBP. The aim of this study was, therefore, to investigate the effects of neuromuscular exercise (NME) on severe multisite musculoskeletal pain in health care workers with recurrent LBP.
Methods
A total of 219 female health care workers aged 30 to 55 years who were suffering from recurrent LBP were allocated to two groups: an exercise group (n=110) and a control group, which consisted of non-exercising participants (n=109). Exercise intervention comprised NME sessions performed twice a week (60 minutes per session). Severe multisite pain was defined as a sum pain intensity score of 4 or above (Numeric rating scale NRS 0-10) at each pain site, frequency of pain daily or nearly daily, and at least 3 pain sites. Severe multisite pain was assessed by questionnaire at 4 time points (at baseline and after 6, 12, and 24 months of neuromuscular exercise intervention).
Results
At baseline, 23% of the participants reported severe multisite pain. After 6 months of NME intervention, the prevalence of severe multisite pain decreased from 27% to 9% in the exercise groupbut increased from 19% to 24% in the control group (OR 0.20, 95% [CI 0.07, 0.54] as adjusted for several confounding factors). However, after the 24-month follow-up, the occurrence of severe multisite pain in the exercise group returned close to the baseline level and that of the control group increased over the baseline level.
Conclusion
The results of this study indicate that severe multisite musculoskeletal pain is a common health problem among health care workers with recurrent LBP. The 6-month NME intervention was effective in reducing severe multisite pain, but the effects were diluted once the intervention ended.
Trial registration: NURSE RCT, clinical trial registration NCT01465698