Neuromuscular exercise for chronic musculoskeletal pain in older people: a randomised controlled trial in primary care in Hong Kong

Background Exercise therapy is commonly prescribed by primary care physicians (PCPs) in the management of chronic musculoskeletal (MSK) pain. Aim To evaluate the clinical effectiveness of a supervised neuromuscular (NM) exercise programme in older people with chronic MSK pain. Design and setting This was a 12-week, two-arm, randomised controlled trial comparing 6 weeks of supervised NM exercise versus waiting list controls. The authors enrolled 72 participants with chronic MSK pain at seven public primary care clinics. Method Participants were randomly allocated in block sizes of 12 to the NM ( n = 36) and control groups ( n = 36) in a 1:1 ratio. Data were collected at baseline, 6, and 12 weeks. The primary outcome was the Brief Pain Inventory (BPI) pain severity score at 6 weeks post-intervention. Secondary outcomes included the BPI interference score; Pain Self-Efficacy Questionnaire (PSEQ), Short Form Health Survey (SF-12), 7-item Generalised Anxiety Disorder (GAD-7), and 9-item Patient Health Questionnaire (PHQ-9) scores; and functional measurements using the Timed-Up-and-Go test and handgrip strength. Results At 6 weeks, the NM group demonstrated a significantly greater improvement in the BPI pain severity score (between-group difference = -1.27; 95% confidence interval [CI] = -2.08 to -0.45; P< 0.01), PSEQ (betweengroup difference = 6.5; 95% CI = 2.22 to 10.77; P< 0.01), and SF-12 physical scores (between-group difference = 3.4; 95% CI = 0.05 to 6.75; P< 0.05) compared with the control group. Statistically significant overall trends of improvement were also observed for the BPI interference and PHQ-9 scores. Conclusion NM exercise has the potential to reduce pain and improve self-efficacy and physical function in older people with chronic MSK pain. It can be an option for PCPs in exercise prescriptions.