The relationship between head and neck posture and VDT screen height in keyboard operators.
BACKGROUND AND PURPOSE: The purpose of this study was to determine the effect of change in video display terminal (VDT) height from desktop height (96.5 cm [38 in]) to an elevated position (109.2 cm [43 in]) on postural angles of the head and neck and the effect on cervical spine flexion moments. SU...
| Publicado en: | Physical Therapy Vol. 78; no. 4; pp. 395 - 404 |
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| Autores principales: | , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Oxford University Press / USA
Apr1998
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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=107267600&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 107267600 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00319023 PTH jtl: Physical Therapy issn: 00319023 maglogo: N pubinfo: dt: Apr1998 vid: 78 iid: 4 pid: 10398 pub: Oxford University Press / USA artinfo: ui: 107267600 1998043629 10.1093/ptj/78.4.395 NLM9555922 107267600 ppf: 395 ppct: 9 formats: tig: atl: The relationship between head and neck posture and VDT screen height in keyboard operators. aug: au: Kietrys DM McClure PW Fitzgerald GK affil: Physical Therapist, Rehabilitation and Fitness Services Inc., 2503 Lombard St., Philadelphia, PA 19146 sug: subj: Computer Terminals Head Neck Posture Ergonomics Cumulative Trauma Disorders Prevention and Control Movement Range of Motion Photography Intraclass Correlation Coefficient Repeated Measures Analysis of Variance Data Analysis Software Reliability T-Tests Confidence Intervals Pearson's Correlation Coefficient Adult Female Male Human Adult: 19-44 years Female Male ab: BACKGROUND AND PURPOSE: The purpose of this study was to determine the effect of change in video display terminal (VDT) height from desktop height (96.5 cm [38 in]) to an elevated position (109.2 cm [43 in]) on postural angles of the head and neck and the effect on cervical spine flexion moments. SUBJECTS: Twenty-seven persons (3 male, 24 female) who spent at least 3 hours per day using a computer while seated were the subjects. The subjects had a mean age of 36.7 years (SD=6.0, range=25-47). METHODS: Subjects were photographed over two 10-minute periods while seated using a computer with the VDT at two different heights. Later, a goniometer was used over images to record angles. RESULTS: There was no difference in cervical flexion moment between the two screen positions. Several postural angles of the head and neck showed changes, but the clinical relevance of these changes is questionable. CONCLUSION AND DISCUSSION: Changing the VDT height from 96.5 to 109.2 cm (floor to midscreen) has no effect on flexion moment on the cervical spine during short periods of VDT operation. If flexion moment is considered a biomechanical indicator of postural stress, it does not appear that the elevated screen position reduces postural stress on the cervical spine during short periods of VDT operation. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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