PMID: 11932856Apr 5, 2002Paper

An ergonomic evaluation comparing desktop, notebook, and subnotebook computers

Archives of Physical Medicine and Rehabilitation
Grace P Szeto, Raymond Lee

Abstract

To evaluate and compare the postures and movements of the cervical and upper thoracic spine, the typing performance, and workstation ergonomic factors when using a desktop, notebook, and subnotebook computers. Repeated-measures design. A motion analysis laboratory with an electromagnetic tracking device. A convenience sample of 21 university students between ages 20 and 24 years with no history of neck or shoulder discomfort. Each subject performed a standardized typing task by using each of the 3 computers. Measurements during the typing task were taken at set intervals. Cervical and thoracic spines adopted a more flexed posture in using the smaller-sized computers. There were significantly greater neck movements in using desktop computers when compared with the notebook and subnotebook computers. The viewing distances adopted by the subjects decreased as the computer size decreased. Typing performance and subjective rating of difficulty in using the keyboards were also significantly different among the 3 types of computers. Computer users need to consider the posture of the spine and potential risk of developing musculoskeletal discomfort in choosing computers.

Citations

Mar 17, 2018·Journal of Physical Therapy Science·Jeon Hyeong Lee, Myoung Hee Lee
Aug 30, 2018·Journal of Physical Therapy Science·Jiyoung KimEunji Choi
Oct 31, 2018·Work : a Journal of Prevention, Assessment, and Rehabilitation·Zhongming YuSuzanne J Snodgrass
Mar 3, 2020·Work : a Journal of Prevention, Assessment, and Rehabilitation·Sangeun JinDaemin Kim
Sep 15, 2020·Work : a Journal of Prevention, Assessment, and Rehabilitation·Roger LeeSuzanne J Snodgrass
Jun 12, 2018·Work : a Journal of Prevention, Assessment, and Rehabilitation·Chelsea D'SilvaCaroline Barakat-Haddad
Oct 31, 2018·Work : a Journal of Prevention, Assessment, and Rehabilitation·Chelsea D'SilvaCaroline Barakat-Haddad
Apr 26, 2014·Journal of Physical Therapy Science·Jeonhyeong Lee, Kyochul Seo
Jul 4, 2016·Work : a Journal of Prevention, Assessment, and Rehabilitation·Mohd Firdaus Mohd TaibMyung Hwan Yun
May 2, 2015·Journal of Physical Therapy Science·Hyo-Jeong KimJin-Seop Kim
Jun 8, 2017·Physiotherapy Theory and Practice·Joo-Hee ParkHye-Seon Jeon
Oct 8, 2015·Work : a Journal of Prevention, Assessment, and Rehabilitation·Jack T Dennerlein
Dec 24, 2019·Work : a Journal of Prevention, Assessment, and Rehabilitation·Seon-Chil KimSung-Hyoun Cho

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