The Effect of Age and Workload on Work Posture toward Musculoskeletal Disorders Complain on Loading and Unloading Workers

Background: Workers in informal sector such as loading and unloading workers have a risk of experiencing health disorder occupational disease musculoskeletloadingal disorders (MSDs). Such complain usually occurs on spine (back neck) upper limb. Most the work using manual material handling, loading, unloading, pushing, pulling, throwing, moving, or rotating loads their hands other body parts. method has musculoskeletal (MSDs) risk, including low back pain. There are several factors causing individual (age gender), (workload posture), environment factors. Objective: The purpose this study was to determine direct indirect effects age workload with posture an intervening variable against at PT. Pelabuhan Indonesia IV (Persero) Makassar Branch. Methods: current research applied analytical observation Cross-Sectional approach involving 140 respondents selected through simple random sampling technique. This further carried out Branch April-May 2021. Data obtained were analyzed univariate, bivariate, multivariate analysis. Results: 65 (46.4%) who suffered from complaints high category followed by 53 (37.9%) very category. It also that significantly affected position (p = 0.000 <0.05), <0.05). Conclusion: A significant effect between variables. Significant found posture. In addition, highest pain is moderate disability.