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Trunk Muscle Performance and Work-Related Musculoskeletal Disorders among Manual Lifting with Back Belt Wearing
Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
|September 22, 2015
Summary
Back belt use showed low correlation with preventing Work-Related Musculoskeletal Disorders (WMSDs). Training workers to balance trunk muscle endurance and stabilize the lower back is recommended for injury prevention.
Area of Science:
- Occupational Health
- Biomechanics
- Ergonomics
Background:
- Work-Related Musculoskeletal Disorders (WMSDs) are prevalent among manual lifting workers.
- Trunk muscle performance is crucial for preventing back injuries in these populations.
Purpose of the Study:
- To investigate the impact of back belt usage on trunk muscle performance.
- To determine the association between trunk muscle performance and WMSDs.
Main Methods:
- 107 male manual lifting workers were assessed for trunk muscle endurance (flexion, extension, side bridge) and lumbar stabilization.
- Data on illness history, back injury, WMSDs, and back belt use were collected.
- Pearson and Spearman correlations were employed to analyze associations.
Main Results:
- Most participants exhibited moderate to good lumbar stabilization but often had imbalanced trunk muscle endurance (84.1%).
- Back belt use duration and frequency did not correlate with trunk muscle performance.
- Significant correlations were observed between lumbar stabilization, trunk endurance, and the number of WMSD areas.
Conclusions:
- Back belt use demonstrated a low correlation with WMSDs.
- Training should focus on improving trunk muscle balance (especially left-right sides) and lower back stabilization to prevent back injuries.
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