Ergonomic Comparison of Keyboard and Touch Screen Data Entry While Standing and Sitting

by Hammer, Matthew Justin

Abstract (Summary)
Data entry is a common practice in many facilities throughout the world. From an ergonomic prospective, these jobs place employees at risk of musculoskeletal disorders due to prolonged sitting, static postures, and highly repetitive motions. The study’s objective was to evaluate the differences between data entry tasks performed in both sitting and standing positions with different work heights using a keyboard and a touch screen input device. Twenty subjects performed multiple food order entries where postural analysis, error rate, self-reported regional body discomfort, and usability data were measured. The results indicate that the angled touch screen produced less ergonomic stress and body discomfort as compared to traditional keyboard and was the preferred input device. The proper position of the touch screen depended upon the height of the work surface—angled touch screen for the sitting condition and angled or horizontal touch screen for the standing at high work surface height.
Bibliographical Information:


School:University of Cincinnati

School Location:USA - Ohio

Source Type:Master's Thesis

Keywords:ergonomics biomechanics kinematics data entry touch screen keyboard sit stand table call center


Date of Publication:01/01/2007

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