Beyond Ergonomics Training: Added Effects of a Supervised, Equipment-Free Workplace Exercise Program on Musculoskeletal Symptoms, Sleep, and Burnout in Artisanal Pastry Workers: A Randomized Controlled Trial

Vollständiger Abstract

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Objective: To determine whether adding a supervised exercise program to workplace ergonomics education adds benefit for musculoskeletal, sleep, and burnout outcomes in börek (Turkish pastry) workers. Methods: In this exploratory randomized controlled trial (NCT07447180), 60 male börek masters from 47 Istanbul shops were randomized to ergonomics education alone or education plus a 12-week supervised, equipment-free exercise program. The primary outcome was the number of symptomatic body regions (Nordic Musculoskeletal Questionnaire). Results: Symptomatic regions decreased with added exercise (4.73 to 3.17) but not with education alone (baseline-adjusted difference, −1.41; 95% CI, −1.94 to −0.87). All secondary outcomes (QuickDASH, Pittsburgh Sleep Quality Index, Maslach Burnout Inventory) favored added exercise. Conclusions: Supervised exercise added to ergonomics education produced a moderate incremental reduction in musculoskeletal symptom burden; all outcomes were self-reported by unblinded participants, so objective confirmation is required.