The effects of multifocal refractive lenses on occipital extension and forward head posture during a visual task
Article Abstract:
A study is conducted to determine if a change in forward head posture and occipital extension occurred in participants who wore multifocal lenses as opposed to those who dint while performing an 8-min visual reading task on a visual display unit (VDU). A significant difference is identified between groups for changes in degrees of forward head posture while performing the task but no significant difference between groups is found for occipital extension while performing the same task.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 2007
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Use of an automatic tracker as a function of its reliability
Article Abstract:
The use and usefulness of an automated tracker as a function of its reliability was investigated. The reliability of the AT varied from completely unreliable to very reliable, and use of the AT and system performance rose as the reliability of the AT rose. Use seemed to be afunction of both AT reliability and the ability of the participants to undertake the task manually.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 1998
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