The correlation between body mass index and lifting frequency with low back pain complaints on rice transport workers in warehouse of perum BULOG Subdivre Pematangsiantar

Introduction: Rice transport workers are at risk for Low Back Pain (LBP) complaints because their work is lifting heavy loads repeatedly and affected by individual characteristics. This research aimed to analyze the strength of the correlation between body mass index and lifting frequency with LBP complaints on rice transport workers in Perum BULOG Pematangsiantar Subdivre. Methods: This type of research was an observational research with a cross sectional design. The sampling technique used total populated sampling with 30 respondents. The variables researched included body mass index, lifting frequency, and LBP complaints. Data were collected by observation, filling out research questionnaires, and Nordic Body Map (NBM). Thdata analysis used was the Spearman correlation. Results: The strength of the correlation between body mass index with low back pain complaints had a value of r = 0.203, the strength of the correlation between the lifting frequency with low back pain complaints had a value of r = 0.415. Conclusion: Body mass index with LBP complaints had a weak and positive correlation. The lifting frequency with LBP complaints had a moderate and positive corelation.