臺灣博碩士論文加值系統

As one of the global health concerns, WMSDs are a major public health concern globally, accounting for 42 to 58% of all work-related illnesses widespread in practically all occupations, with bus drivers being the occupation most commonly associated with WMSDs. There is evidence in the literature regarding the prevalence of work-related musculoskeletal disorders (WMSDs) among bus drivers; however, since relatively little research has been conducted on WMSD among Taiwanese bus drivers, the purpose of this study is to determine the prevalence of WMSDs among bus drivers in the Taipei area and the risk factors associated with them (individual and task characteristics). This study therefore employs the Nordic Musculoskeletal Questionnaire (NMQ) to investigate the bus drivers and identify the risk variables that may result in discomfort. The NMQ questionnaire was delivered to 145 Taiwanese bus drivers in Taipei area. The results of logistic regression analysis revealed that the overall prevalence of musculoskeletal disorders symptoms in any body part was 78.3%, with the highest prevalence of body part being the neck (46.9%), followed by the right shoulder (40.0%), the lower back (37.2%), and the left shoulder (33.8%), and all other body parts were less than 22.1%. Neck, shoulder, and lower back discomforts may be caused by psychological stress and an uncomfortable seat, whilst stretching exercises conducted between trips may help to alleviate neck and shoulder discomforts. The findings of the study suggested that local investigations emphasizing specific task arrangements and characteristics are needed to address the problem of musculoskeletal disorder in bus drivers.

TABLE OF CONTENTS
Ming Chi University of Technology Recommendation Letter from the Thesis Advisor i
Ming Chi University of Technology Thesis/Dissertation Oral Defense Committee Certification ii
ACK OF ACKNOWLEGDE iii
ABSTRACT iv
CONTENTS vi
LIST OF TABLES viii
LIST OF FIGURES ix

Chapter 1 INTRODUCTION 1
1.1 Background 1
1.2 Study Motivation 5
1.3 Objectives 6
1.4 Study Limitations 6
1.5 Study Process 6

Chapter 2 LITERATURE REVIEW 8
2.1 Prevalence of Musculoskeletal Disorder among Bus Drivers 8
2.2 Risk Factors for WMSD in Bus Drivers 11
2.3 Relationship Between Risk Factors and WMSD Experienced by Bus drivers 13
2.4 Literature Summary 16

Chapter 3 METHODOLOGY 18
3.1 Observation and Interview 19
3.2 Questionnaire Design 21
3.3 Participant recruitment and data collection 23
3.4 Statistical Analysis 23

CHAPTER 4 RESULTS 24
4.1 Sociodemographic Characteristics of Bus Drivers 24
4.2 Prevalence of Work Related Musculoskeletal Disorder (WMSD) among
Bus Drivers 27
4.3 Association between Risk Factors and WMSD among Bus Drivers 28
4.4 Correlation Analysis Between the Body Parts that Experience Pain 32

CHAPTER 5 DISCUSSIONS 34
5.1 Prevalence of Work-Related Musculoskeletal Disorders (WMSD) among Bus Drivers and Its Comparison with Previous Studies 34
5.2 Association between Risk Factors and WMSD among Bus Drivers and Its Comparison with Previous Studies 37

CHAPTER 6 CONCLUSIONS 40

REFERENCES 41

LIST OF FIGURES
Figure 3.1 Study Protocol 19
Figure 3.2 Bus Driver Seat Condition 20
Figure 4.1 Percentage of Musculoskeletal Discomfort in Different Body Areas Reported by Bus Drivers 28

LIST OF TABLES
Table 4.1 Basic Information of Bus Drivers 24
Table 4.2 Demographics & Working Conditions of Bus Drivers 25
Table 4.3 Significant Risk Factors that Influenced Musculoskeletal Disorders 28
Table 4.4 Summary of Risk Factors that Associated with Musculoskeletal Disorders in 4 Dominant Body Parts 30
Table 4.5 Correlations among the Discomfort Body Parts 32

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