<![CDATA[Workers engaged in high-intensity physical and mental activities are susceptible to increased workloads that may lead to work-related health issues. In the revitalization project at Hospital X, several workers reported discomfort across multiple body areas. An initial assessment utilizing the Nordic Body Map (NBM) questionnaire identified the predominant complaints in the right hand, back, and waist, with scores of 72, 70, and 69, respectively. These complaints primarily result from exposure to repetitive and prolonged physical tasks during the project. This study aims to investigate musculoskeletal complaints through the NBM questionnaire and evaluate physical workload using the Job Strain Index (JSI) method among construction workers engaged in various activities, including piping, ducting, plumbing sprinkle, electrical work, and AC insulation. The JSI analysis revealed that ducting work exhibited the highest strain index score of 20.25, followed by AC insulation at 18, and plumbing sprinkle at 10.12, categorizing all three as hazardous risk activities (probably dangerous). In alignment with the risk control hierarchy, recommended mitigation strategies include the implementation of engineering controls, such as providing work aids to alleviate physical loads and applying ergonomic principles. Additionally, administrative controls are proposed, including the regulation of working hours, scheduling of breaks, and conducting safety patrols. To further enhance worker protection, it is critical to supply adequate personal protective equipment (PPE) that meets both quality and quantity standards, including safety helmets, masks, and gloves tailored to the specific demands of each task. Keyword: Hierarchy of Risk Control, Job Strain Index (JSI), Musculoskeletal, Nordic Body Map (NBM), Physical Workload]]>
