The effects of multifocal refractive lenses on occipital extension and forward head posture during a visual task.
The purpose of this study was to determine if a change in forward head posture and occipital extension occurred in participants who wore multifocal lenses vs. those persons with non-multifocal lenses while performing an 8-min visual reading task on a visual display unit (VDU). Forty-two healthy huma...
| Publicado en: | Ergonomics Vol. 50; no. 12; pp. 2095 - 2104 |
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| Autores principales: | , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Taylor & Francis Ltd
Dec2007
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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=105900527&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105900527 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00140139 ERO jtl: Ergonomics issn: 00140139 maglogo: Y pubinfo: dt: Dec2007 vid: 50 iid: 12 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 105900527 105900527 2009732045 10.1080/00140130701419166 NLM17852377 105900527 ppf: 2095 ppct: 9 formats: tig: atl: The effects of multifocal refractive lenses on occipital extension and forward head posture during a visual task. aug: au: Becker M Rothman J Nelson AJ Freedland R Garcia D Feit L Barth J Sabini R affil: Department of Physical Therapy, College of Staten Island of The City University of New York, Staten Island, New York, USA sug: subj: Contact Lenses Eye Movements Physiology Head Posture Task Performance and Analysis Adult Aged Computer Terminals Female Male Middle Age New York User-Computer Interface Human Adult: 19-44 years Aged: 65+ years Middle Aged: 45-64 years Female Male ab: The purpose of this study was to determine if a change in forward head posture and occipital extension occurred in participants who wore multifocal lenses vs. those persons with non-multifocal lenses while performing an 8-min visual reading task on a visual display unit (VDU). Forty-two healthy human participants were recruited for this study. Thirty-three participants completed the study. Fourteen participants wore multifocal lenses and 19 wore frames with non-multifocal lenses. To evaluate the degree of change of forward head posture and occipital extension digital photographs of cervical posture were taken at four different time intervals: prior to performing the reading task and at 3, 5 and 8 min during the reading task. The digital photographs were analysed utilizing a computer program. Two one-way ANOVA were utilized to determine the degree of change of forward head posture and occipital extension between groups. A significant difference was identified between groups for changes in degrees of forward head posture while performing a visual reading task on a VDU. However, no significant difference between groups was found for occipital extension while performing the same task. Multifocal wearers exhibit greater degrees of change in forward head posture and occipital extension than non-multifocal wearers. These postural changes may place them at a greater risk for musculoskeletal disorders and headaches. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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