Ergonomics and Health Aspects of Work with Computers: International Conference, EHAWC 2007, Held as Part of HCI International 2007, Beijing, China, ... (Lecture Notes in Computer Science, 4566)

The 12th International Conference on Human-Computer Interaction, HCI Inter- tional 2007, was held in Beijing, P.R. China, 22-27 July 2007, jointly with the Symposium on Human Interface (Japan) 2007, the 7th International Conference on Engineering Psychology and Cognitive Ergonomics, the 4th International Conference on Universal Access in Human-Computer Interaction, the 2nd International Conf- ence on Virtual Reality, the 2nd International Conference on Usability and Inter- tionalization, the 2nd International Conference on Online Communities and Social Computing, the 3rd International Conference on Augmented Cognition, and the 1st International Conference on Digital Human Modeling. A total of 3403 individuals from academia, research institutes, industry and g- ernmental agencies from 76 countries submitted contributions, and 1681 papers, judged to be of high scientific quality, were included in the program. These papers address the latest research and development efforts and highlight the human aspects of design and use of computing systems. The papers accepted for presentation th- oughly cover the entire field of Human-Computer Interaction, addressing major - vances in knowledge and effective use of computers in a variety of application areas. This volume, edited by Marvin J. Dainoff, contains papers in the thematic area of Ergonomics and Health Aspects of Work with Computers, addressing the following major topics: " Health and Well Being in the Working Environment " Ergonomics and Design Title Page Foreword Preface Organization Table of Contents Part I Health and Well Being in the Working Environment Can Visual Discomfort Influence on Muscle Pain and Muscle Load for Visual Display Unit (VDU) Workers? Introduction Epidemiological Studies The First Study The Second Prospective Field Study The Third Epidemiological Study Laboratory Study The Design and Methods of the Study Results Conclusion and Recommendations References Neuromuscular Principles in the Visual System and Their Potential Role in Visual Discomfort Introduction Material and Methods Results Conclusion References Forget About Aesthetics in Chair Design: Ergonomics Should Provide the Basis for Comfort The deLooze/Helander Model of Seated Comfort Methodological Critique Conceptual Critique Ecological Approach as a General Solution to Incorporating Ergonomics in Design A General Ecological Framework for Comfort References Effects of the Office Environment on Health and Productivity 1: Auditory and Visual Distraction Introduction Methods Results Discussion Conclusion References Effects of Using Dynamic Office Chairs on Posture and EMG in Standardized Office Tasks Introduction Methods Results Conclusions References Video Display Terminals and Neck Pain: When Ophthalmology Explains the Failure of Biomechanical Intervention Background Case Report Discussion Summary References Performance Monitoring, Supervisory Support, and Job Characteristics and Their Impact on Employee Well-Being Amongst Four Samples of Call Centre Agents in South Africa Introduction Aim Methodology Biographic Information Job Design Well-Being Interviews History and Local History Effects Findings Biographical Data Interviews with Supervisors Job Design Well-Being Variables Supplementary Interviews Discussion and Concluding Comments References Mechanisms for Work Related Disorders Among Computer Workers Introduction Models for Pain Generation The Blood Vessel-Nociceptor Interaction Hypothesis The Hyperventilation Theory The Vicious Circle Hypothesis The Nitric Oxide/Oxygen Ratio Hypothesis The Cinderella Hypothesis Our Own Investigations of the Possibility for the Cinderella Hypothesis to Explain the Pain Generation Intramuscular Electromyography in Experiments Results from Our Intramuscular Experiments Discussion References Do Background Luminance Levels or Character Size Effect the Eye Blink Rate During Visual Display Unit (VDU) Work – Comparing Young Adults with Presbyopes? Introduction Aims of the Study Design of the Study Materials and Methods Subject Population Illuminance and Luminance The Workplace The Work Task Measurement of Eye Blink Rate Test Duration Optometric Examination Background Factors Statistical Analysis Results Discussion Conclusion Do the Luminance Levels of the Surroundings of Visual Display Units (VDU) and the Size of the Characters on the Screen Effect the Accommodation, the Muscle Load and Productivity During VDU Work? Introduction Aims of the Study Design of the Study Materials and Methods Subject Population Illuminance and Luminance The Workplace The Work Task Refractive Measurements Measurement of Load on the Musculoskeletal System Test Duration Optometric Examination Background Factors Statistical Analysis Results Postural Load Refractive Changes Productivity Discussion Conclusion References Complexity and Workload Factors in Virtual Work Environments of Mobile Work Introduction Definitions of Mobile Work and the Complexity Approach Research Method and Data Collection Results - Manifestation of Complexity Factors andComplexity-Related Workload Factors Discussion References A Study of Personal Space in Communicating Information Introduction Personal Space Experiment Expression of Personal Information Space Conclusion References Musculoskeletal and Performance Effects of Monocular Display Augmented, Articulated Arm Based Laser Digitizing Introduction Methods Experimental Design Independent Variable Dependent Variables Task Participants Procedure Data Analysis Results EMG and Posture Usability and Discomfort Performance Discomfort and Usability Discussion and Conclusions References Work Environment and Health Effects of Operators at Light-on-Test Process in TFT-LCD Plants Introduction Methods Results and Discussion Conclusion References Techno Stress: A Study Among Academic and Non Academic Staff Introduction Definition of Techno Stress Definition of ICT Objectives of the Study Materials and Methods Results and Discussion Demographic Data Level of Stress Among the Respondents Difference of Stress Level Among Male and Female Respondents Correlation of Stress Level with Respondents’ Tenure Limitation of the Study Suggestions for Future Research Conclusion References Call Centres in the Domain of Telecommunications: Ergonomic Issues for Well-Being Improvement Introduction Materials and Methods Preliminary Interviews Qualitative Data Collection Preparation and Administration of a Questionnaire Data Analysis and Main Results Qualitative Phase Quantitative Phase Conclusions References Health and Performance Consequences of Office Ergonomic Interventions Among Computer Workers Introduction Methods Setting and Participants Study Design Office Workplace Intervention Office Ergonomics Training Intervention Instruments Business Process Analysis (BPA) Results Response Rates Learning: Office Ergonomic Knowledge Organizational Results: Individual Self-reported Musculoskeletal Discomfort Organizational Results: Business Process Efficiency Analyses of the Effects of the Experimental Workspace and Training on Business Process Efficiency Conclusions References Splint Effect on the Range of Wrist Motion and Typing Performance Introduction Experiment 1: Splint Effect on Maximal Range of Wrist Motion Method Results Experiment 2: Splint Effect on Typing Performance Method Results Discussions and Conclusions References The Impact of VDU Tasks and Continuous Feedback on Arousal and Well-Being: Preliminary Findings Introduction Methods Experimental Procedures Physiology VDU Tasks Questionnaires Results Physiology Well-Being Discussion References Effects of the Office Environment on Health and Productivity 1: Effects of Coffee Corner Position Introduction Methods Results Discussion Conclusion References Guerilla Ergonomics: Perceiving the Affordances for Workplace Design Introduction Ergonomic Interventions Create Affordances What Affordances Are Needed to Perform the Work to Be Done? Guerilla Ergonomics: Creating Affordances in the Workplace A Case Study Guerilla Ergonomics Finding New Affordances for Old Objects Perceiving Multiple Uses for an Object Implications for Guerilla Ergonomics References Part II Ergonomics and Design Constraints on Demarcating Left and Right Areas in Designing of a Performance-Based Workstation Introduction Pilot Study Method Participants Apparatus Procedure Results Discussion References Design of an Adaptive Feedback Based Steering Wheel Introduction: Human Factors Studies in Steering Systems Selection of the Best Force-Feedback Solutions Architectural Model of the ESBW Interface of the ESBW with a Driving Simulator Experimental Test: Tuning of the ESBW Conclusions and Future Steps References Virtual Reality in the Study of Warnings Effectiveness Introduction Assessing Warning Effectiveness Methodologies Some Considerations About VR in Warnings Research Related Work Methodology with VR Conclusions References An Interactive System to Measure the Human Behaviour: An Analysis Model for the Human-Product-Environment Interaction Introduction Situations Where Studies with Video Were Applied Analysis of the Information Registered in Video Propose of a Methodology for Behavior Analysis in Work Situation Ergonomic Analysis Definition of Analysis Objectives To Make a Video Number of Video Cameras Sample Recording Time Definition of the Behavior Categories Category Register Presentation of the Results Conclusions References Computer, Television and Playstation Use in Developmental Age: Friends or Enemies of Growth and Health? Study on a Northern Italy Sample 6-14 Year Old Introduction Materials and Methods Results Conclusions References Ergonomic Requirements for Input Devices Introduction Methods Results Review of Standards, Guidelines and Checklists Review of the Literature Discussion Conclusion References Factors Relating to Computer Use for People with Mental Illness Introduction Background Purpose and Significance Literature Review Methods Results and Discussions Information Access Information Literacy Information Application Family Information Agency Personal Clinical Characteristics Limitations Application References A Biomechanical Analysis System to Evaluate Physical Usability of Kimchi Refrigerator Introduction Biomechanical Analysis System Measurement System Analysis Modules Case Study: Evaluation of Kimchi Refrigerator Kimchi Refrigerator Experiment 3DSSPP Analysis Conclusion References An Experimental Study on Physiological Parameters Toward Driver Emotion Recognition Introduction Motivation Emotion Classification and Recognition Emotion Recognition Experiments Experimental Apparatus Experimental Method Results and Discussion Conclusions References A Kinematic Analysis of Directional Effects on Trackball Mouse Control in Novel Normal Users: An Alternating Treatments Single Subject Design Introduction Method Participants Experimental Design Variables Procedure Materials Statistics Results Discussion References Appendix An Evaluation Study for a 3D Input Device Based on Ergonomic Design Criteria Introduction Development of the Evaluation Study Test Tasks Tested Devices Test Procedure Expected Results The $HAPTOR$, a 3D-Input-Device Based on Ergonomic Design Criteria Ergonomic Background Mechanical Development Electronic Development Upgrades and Further Development Summary References Investigation and Implementation of the Advanced Wireless Medical Registration Solution in China Introduction Registration Technology Comparison System Implementation System Specification WAP Programming Discussion and Conclusion Discussion Conclusion References Effectiveness of Multimedia Systems in Children’s Education Introduction Contribution of Participative Design (DP) and User Centered Design (UCD) Methodologies ErgoShow Development Methodology Defining Concept System Preliminary and Detailed Studies Final Validation Introducing an Example – Ergoshow 1 Conclusions References An Expert System to Support Clothing Design Process Introduction A Concept Expert System to Support Clothes Design 1^st Phase – Knowledge Data Base Collection 2^nd Phase – Data Entry Expert System Categories 3^rd Phase – Data Output Expert System Categories Conclusions References Interaction and Ergonomics Issues in the Development of a Mixed Reality Construction Machinery Simulator for Safety Training Introduction Related Work VAR-Trainer Architecture Hardware Setup Virtual Reality Mixed Augmented Reality HMD Chroma-Key Technique Optical Tracking System Results HMD Ergonomics Virtual Reality, Augmented Reality and Chroma Key Optical Tracking System Conclusions and Future Work References Performance Improvement of Pulse Oximetry-Based Respiration Detection by Selective Mode Bandpass Filtering Introduction Related Work Pulse Oximetry for Exercises Necessity of Dynamic Passband Adjustment Internal Respiration and External Respiration Intensities of Exercises and SpO_2 Signals Detection of HR Frequency Domain Analysis to Detect Respirations Overall Procedure of Proposed RR Detection Experiments and Results Discussion Conclusion References Development of Electric Wheelchair with Operational Force Detecting Interface for Persons with Becker’s Muscular Dystrophy Introduction Examination of Patient Condition of Becker’s Muscular Dystrophy Survey of Subject Development of Force Detecting Interface Extraction of Requirement Items for Proposal an Interface Physical Characteristics for Proposal of an Interface Proposal an Interface Considering Physical Characteristics Correspondence Between an Operation Method of Force Detecting Interface and an Electrical Wheelchair Behavior Problem of a Force Detecting Interface Disturbance Rejection Method for Extracting an Operation Intention Extraction of Disturbance for Stable Operating Proposal of Disturbance Rejection Method While Operating Evaluation of Force Detecting Interface Evaluation Results Evaluation of Patient B's Finger Function, and a New Input Device Conclusions References How Users with RSI Review the Usability of Notebook Input Devices Introduction Method Variables Apparatus and Task Participants Procedure and Data Analysis Results Case Report 1 Case Report 2 Case Report 3 Discussion and Conclusions References Dynamic Mouse Speed Scheme Design Based on Trajectory Analysis Introduction Dynamic Mouse Speed (DMS) Experiment I Experimental Design and Procedure Results Experiment II Experimental Design and Procedure Results Discussion References Problematic Internet Use in South African Information Technology Workers Introduction Internet Use and PIU in South Africa Groups at Risk of PIU and Information Technology Workers Correlates of PIU Methodology Results PIU Prevalence in South African IT Workers PIU Correlates in South African IT Workers Relative Contributory Factors Towards PIU in South African IT Workers Discussion PIU Prevalence Amongst South African IT Workers PIU Correlates in South African IT Workers Relative Contributory Factors Towards PIU in South African IT Workers Concluding Comments References A Novel Design for an Ultra-Large Screen Display for Industrial Process Control Introduction Motivation for the Development of the New Design Design Rationale, Approach, Features and Review Design Approach and User Involvement Process The “Information-Rich Design” Concept for Large Screen Displays Design Guideline Review Total Display Layout and Ergonomical Challenges Remaining Issues and Planned Further Work References Methodology to Apply a Usability Testing by Non Specialized People: Evaluation of the European Platform "e-Exhibitions" Introduction Objectives Specific Objectives Methodology Simplified Prototype Application Protocol Training Programs Final Comments References Evaluation of Guiard’s Theory of Bimanual Control for Navigation and Selection Introduction Background and Related Work Bimanual Versus Unimanual Operation Guiard’s Kinematics Chain Model Study Design Results and Analysis Results for Static Experiment Results for Dynamic Experiments Analysis Conclusions and Contributions References Evaluation Approach for Post-stroke Rehabilitation Via Virtual Reality Aided Motor Training Introduction Background Previous Work Overview Evaluation Approach Kinematic Measures 2-D Pitch-Yaw Grid Map Performance Map Progression Map Level Classification Case Study Visualization of Performance: Arm Length Ratio 60% Overview of Performance Versus Arm Length Ratio Overview of Progression Versus Arm Length Ratio Conclusion and Future Work Conclusion Future Work References Author Index This book constitutes the refereed proceedings of the International Conference on Ergonomics and Health Aspects of Work with Computers, EHAWC 2007, held in Beijing, China in July 2007 in the framework of the 12th International Conference on Human-Computer Interaction, HCII 2007 with 8 other thematically similar conferences. It covers health and well being in the working environment as well as ergonomics and design.