The Impact of Sitting Posture on Prolonged Reading: Analyzing Chair Depth and Height in Classroom Settings
DOI:
https://doi.org/10.23055/ijietap.2026.33.2.10873Abstract
This study aimed to investigate the influence of sitting posture on the distraction levels during prolonged reading sessions among college students. The environmental variables examined were confined to adjustments in classroom seating, specifically seat depth and backrest height. The participants are university students with normal vision and no history of musculoskeletal disorders. The findings revealed no significant interaction effect between seat depth and backrest height on attention during extended reading. Nevertheless, participants seated on the front third of the chair or without backrest support exhibited higher levels of distraction. Based on the statistical findings, sitting in the front two-thirds of the seat, with support above the lower back, has proven more effective during extended periods of reading. As a result, schools should consider purchasing chairs with adjustable backrests or mandate the use of lumbar pads. These measures allow students to adjust seat depth, promoting better posture and enhancing reading performance during prolonged classroom sessions.
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