Influence of different stool types on muscle activity and lumbar posture among dentists during a simulated dental screening task

Journal article


De Bruyne, Mieke A.A., Van Renterghem, Benedikt, Palmans, Tanneke, Danneels, Lieven, Dolphens, Mieke and Baird, Andrew 2016. Influence of different stool types on muscle activity and lumbar posture among dentists during a simulated dental screening task. Applied Ergonomics. https://doi.org/10.1016/j.apergo.2016.02.014
AuthorsDe Bruyne, Mieke A.A., Van Renterghem, Benedikt, Palmans, Tanneke, Danneels, Lieven, Dolphens, Mieke and Baird, Andrew
Abstract

Whereas in the past dental stools typically facilitated a 90° hip angle, a number of currently available alternative designs allow for a more extended hip posture. The present study investigated the influence of different stool types on muscle activity and lumbar posture. Twenty five participants completed a simulated dental procedure on a standard stool, a saddle and the Ghopec. The latter stool comprises a seat pan consisting of a horizontal rear part for the pelvis and an inclinable sloping down front part for the upper legs, with a vertically and horizontally adjustable back rest. Lumbar posture was most close to neutral on the Ghopec, whereas sitting on a standard/saddle stool resulted in more flexed/extended postures respectively. Sitting with a 90° angle (standard stool) resulted in higher activation of back muscles while sitting with a 125° angle (saddle and Ghopec) activated abdominal muscles more, although less in the presence of a backrest (Ghopec). To maintain neutral posture during dental screening, the Ghopec is considered the most suitable design for the tasks undertaken.

KeywordsDental ergonomics; Posture; Muscle activity
Year2016
JournalApplied Ergonomics
PublisherElsevier
ISSN00036870
Digital Object Identifier (DOI)https://doi.org/10.1016/j.apergo.2016.02.014
Web address (URL)http://hdl.handle.net/10545/621165
http://creativecommons.org/licenses/by-nc-nd/4.0/
hdl:10545/621165
Publication dates11 Mar 2016
Publication process dates
Deposited15 Dec 2016, 09:49
Accepted26 Feb 2016
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ContributorsUniversity of Derby
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