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The effects of weight and posture on muscle activity and movement kinematics in manual lifting.

by Wan Yu Kwan. / Thesis submitted in: December 1999. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves 112-125). / Abstracts in English and Chinese. / Acknowledgement --- p.2 / Abstract --- p.3 / Table of Contents --- p.5 / Chapter Chapter 1 - --- Introduction --- p.7 / Chapter 1.1 --- Contribution of lifting techniques on risk assessment and training on manual materials handling --- p.7 / Chapter 1.2 --- Objectives --- p.12 / Chapter 1.3 --- Hypotheses --- p.12 / Chapter 1.4 --- Significance of Study --- p.13 / Chapter Chapter 2 - --- Literature Review --- p.14 / Chapter 2.1 --- Societal concerns on employee compensation --- p.14 / Chapter 2.2 --- Etiology of low back injury --- p.15 / Chapter 2.2.1 --- Compression forces on vertebral joints --- p.16 / Chapter 2.2.2 --- Shear forces on vertebral joints --- p.17 / Chapter 2.3 --- Lifting techniques --- p.18 / Chapter 2.3.1 --- Effect of lifting techniques on curvature of the spine --- p.22 / Chapter 2.3.2 --- Importance of leg muscles in manual lifting --- p.22 / Chapter 2.4 --- Prediction of low back injury in manual lifting --- p.24 / Chapter 2.4.1 --- Compression forces and moments --- p.26 / Chapter 2.4.2 --- Balance control --- p.29 / Chapter 2.4.3 --- Application of Surface electromyography in ergonomics --- p.31 / Chapter Chapter 3 - --- Method --- p.34 / Chapter 3.1 --- Subject recruitment --- p.34 / Chapter 3.2 --- Equipment --- p.35 / Chapter 3.2.1 --- Force platform --- p.35 / Chapter 3.2.2 --- Motion analysis system --- p.37 / Chapter 3.2.3 --- Surface electromyography --- p.38 / Chapter 3.3 --- Maximum voluntary contraction test --- p.40 / Chapter 3.3.1 --- MVC of vastus medialis --- p.41 / Chapter 3.3.2 --- MVC of medial gastrocnemius --- p.42 / Chapter 3.3.3 --- MVC of erector spinae --- p.43 / Chapter 3.4 --- Lifting techniques --- p.44 / Chapter 3.5 --- Experimental procedures --- p.48 / Chapter 3.6 --- Statistical analysis --- p.53 / Chapter Chapter 4 - --- Results and Dicussion --- p.54 / Chapter 4.1 --- No. of cases in the study --- p.54 / Chapter 4.2 --- Phases of lifting --- p.55 / Chapter 4.3 --- Process time --- p.56 / Chapter 4.4 --- Trunk inclination angles --- p.62 / Chapter 4.5 --- Hip joint angles --- p.67 / Chapter 4.6 --- Knee joint angles --- p.73 / Chapter 4.7 --- Center of mass of box --- p.79 / Chapter 4.8 --- Muscle activities --- p.84 / Chapter Chapter 5 - --- Conclusion --- p.109 / Chapter Chapter 6 - --- References --- p.112

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_323054
Date January 2000
ContributorsWan, Yu Kwan., Chinese University of Hong Kong Graduate School. Division of Education.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, 125 leaves : ill. ; 30 cm.
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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