Centro de Documentacion de Fundación MAPFRE - Frequency of postural changes during sitting whilst using a desktop computer

MAP20140020010

Frequency of postural changes during sitting whilst using a desktop computer - exploring an analytical methodology / Sjan-Mari van Niekerk, Quinette Abigail Louw, Karen Grimmer-Sommers

Sumario: Background: Dynamic movement whilst sitting is advocated as a way to reduce musculoskeletal symptoms from seated activities. Conventionally, in ergonomics research, only a snapshot¿ of static sitting posture is captured, which does not provide information on the number or type of movements over a period of time. A novel approach to analyse the number of postural changes whist sitting was employed in order to describe the sitting behaviour of adolescents whilst undertaking computing activities. Methods: A repeated-measures observational study was conducted. A total of 12 high school students were randomly selected from a conveniently selected school. Fifteen minutes of 3D posture measurements were recorded to determine the number of postural changes whilst using computers. Results: Data of 11 students were able to be analysed. Large intra-subject variation of the median and IQR was observed, indicating frequent postural changes whilst sitting. Conclusion: Better understanding of usual dynamic postural movements whilst sitting will provide new insights into causes of musculoskeletal symptoms experienced by computer users

En: Ergonomics : the international journal of research and practice in human factors and ergonomics. - Oxon [United Kingdom] : Taylor & Francis, 2010- = ISSN 0014-0139. - 07/04/2014 Volumen 57 Número 4 - abril 2014

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