Frequency of postural changes during sitting whilst using a desktop computer - exploring an analytical methodology

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      <subfield code="a">Niekerk, Sjan-Mari van</subfield>
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      <subfield code="a">Frequency of postural changes during sitting whilst using a desktop computer - exploring an analytical methodology</subfield>
      <subfield code="c">Sjan-Mari van Niekerk, Quinette Abigail Louw, Karen Grimmer-Sommers</subfield>
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      <subfield code="a">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.</subfield>
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      <subfield code="w">MAP20100019818</subfield>
      <subfield code="t">Ergonomics : the international journal of research and practice in human factors and ergonomics</subfield>
      <subfield code="d">Oxon [United Kingdom] : Taylor & Francis, 2010-</subfield>
      <subfield code="x">0014-0139</subfield>
      <subfield code="g">07/04/2014 Volumen 57 Número 4 - abril 2014 </subfield>
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