Journal of Occupational & Environmental Medicine
The Effectiveness of Ergonomic Training and Chiropractic Treatment in Industrial Workers with Nonspecific Chronic Neck Pain: A Randomized Controlled Trial
OBJECTIVE: To evaluate whether adding chiropractic treatment to ergonomic training improves pain, function, and sleep in industrial workers with chronic nonspecific neck pain. METHODS: Forty-five male industrial workers were randomized (15 per group) to ergonomic training plus chiropractic treatment (CTG), plus sham manipulation (SMTG), or alone (CG) for four weeks. Pain (VAS), biopsychosocial impact (BNQ), disability (NDI), and sleep quality (PSQI) were assessed before and after. The group × time interaction was t …