In this thesis, a new method is proposed for monitoring the use of backrest and forearm support during computer work on a standard workstation and the same workstation with a Butterfly board attachment. The developed techniques measure the effect of using the Butterfly board on the resting duration and the pressure on the back and forearms while resting. Novel™ pressure sensor mats were used to measure pressure applied by resting against the chair back rest and the arm rests. To ensure that the back mat is not moving, a new technique of mapping the back points of contact with the backrest is used. A video camera, synchronized with the pressure measurement system, is used to identify the location where the forearms were resting (work surface or chair arm rests). / Thesis (Master, Mechanical and Materials Engineering) -- Queen's University, 2009-05-14 17:02:19.36
|19 May 2009
|Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))
|Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada
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