Analysis of The Mental Workload of Warehouse Workers Using The NASA-TLX Method in The Garment Industry

Mental workload is a critical factor affecting worker performance, especially in labor-intensive industries such as garment manufacturing. This study aims to analyze the mental workload of warehouse workers at PT App One Indonesia using the NASA Task Load Index (NASA-TLX) method. A total of 34 respondents participated through questionnaires, observations, and interviews. The results indicate that the average mental workload score is 75.10, categorized as high. A total of 31 workers fall into the high category, and 3 into the very high category. The dominant factor contributing to workload is temporal demand, followed by mental demand and physical demand. These results demonstrate that time constraints, multitasking, and physical activity largely influence work pressure. Improvement strategies include optimizing workload distribution, improving scheduling systems, standardizing work procedures, and implementing ergonomic interventions. This study provides both theoretical and practical contributions for improving workplace conditions and worker productivity in warehouse operations.