Children's posture and muscle activity at different computer display heights and during paper information technology use.
Objective: The 3-D posture and muscle activity in the neck and upper limb were assessed in children using high-, mid-, and book-level displays, which correspond to working conditions frequently observed when children interact with computers or books and paper.Background: The 3-D posture and muscle a...
| Publicado en: | Human Factors Vol. 50; no. 1; pp. 49 - 62 |
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| Autores principales: | , , , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Sage Publications Inc.
Feb2008
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105906323&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105906323 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00187208 HMF jtl: Human Factors issn: 00187208 maglogo: Y pubinfo: dt: Feb2008 vid: 50 iid: 1 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 105906323 105906323 NLM18354971 2009872391 10.1518/001872008x250575 NLM18354971 105906323 ppf: 49 ppct: 13 formats: tig: atl: Children's posture and muscle activity at different computer display heights and during paper information technology use. aug: au: Straker L Burgess-Limerick R Pollock C Coleman J Skoss R Maslen B Straker, Leon Burgess-Limerick, Robin Pollock, Clare Coleman, Jemma Skoss, Rachel Maslen, Barbara affil: School of Physiotherapy, Curtin University of Technology, GPO Box U 1987, Perth, WA, 6845, Australia sug: subj: Computer Terminals Muscle, Skeletal Physiology Posture Physiology Upper Extremity Physiology User-Computer Interface Child Female Male United States Writing Human Child: 6-12 years Female Male ab: Objective: The 3-D posture and muscle activity in the neck and upper limb were assessed in children using high-, mid-, and book-level displays, which correspond to working conditions frequently observed when children interact with computers or books and paper.Background: The 3-D posture and muscle activity of children reading and inputting data with computers and paper had not been previously assessed.Methods: Twenty-four children aged 10 to 12 years and of normal height performed an interactive task involving reading from a book and writing on paper or reading from a computer display and inputting data using a mouse and keyboard.Results: Head and neck flexion increased as the visual target was lowered. The high display resulted in mainly upper cervical relative extension, and the book display resulted in both upper and lower cervical flexion. The book condition resulted in greater cervical erector spinae and upper trapezius activity than did the mid and high conditions.Conclusion: The data suggest that a mid-level display may be more appropriate for children than a high display (e.g., when the display is placed on top of the central processing unit). The mid display also results in a more upright and symmetrical posture and lower mean muscle activity than does working with books and paper flat on the desk.Application: This study provides short-term laboratory study evidence for the formulation of guidelines for workstation design and adjustment for children. Use of computers by children is increasing, yet ergonomic guidelines lag behind those for adults. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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