Work-related musculoskeletal problems and associated factors among office workers.

. The aim of this study was to investigate musculoskeletal disorders (MSDs) and associated factors among Iranian office personnel. . In this cross-sectional study, 359 Iranian office workers were included. Data were gathered using a demographic questionnaire, the Nordic musculoskeletal questionnaire, the numeric rating scale, rapid office strain assessment (ROSA) and the NASA task load index (NASA-TLX). . Our findings showed that the highest prevalence rate of MSDs within the last 12 months and the highest pain/discomfort severity were related to the participants' necks. The mean performance, mental demand and effort subscale scores of the NASA-TLX were higher than other subscales (physical demand, temporal demand and frustration level). ROSA scores showed that 53.8% of the participants were in action level 1 (low MSD risk) and the rest (46.2%) were in action level 2 (high MSD risk). The pain/discomfort severity in the shoulders, elbows, wrists/hands, thighs and ankles/feet was correlated to the final ROSA score. Age, gender, body mass index and some NASA-TLX subscales (effort, mental demand and performance) were associated with symptoms of MSDs in different body regions. . Improving workplace conditions (both mentally and physically) is suggested for reducing and eliminating musculoskeletal problems among office workers.