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International Journal of Occupational Safety and Ergonomics: JOSE

Shengyuan Yan, Cong Chi Tran, Yingying Wei, Jean Luc Habiyaremye
Developing an early warning model to predict the driver's mental workload (MWL) is critical and helpful, especially for new or less experienced drivers. The present study aims to investigate the correlation between new driver's MWL and their work performance, regarding the number of errors. Additionally, the Group method of data handling (GMDH) is used to establish the driver's MWL predictive model based on subjective rating (NASA task load index (NASA-TLX)) and six physiological indices. The results indicate that NASA-TLX and the number of errors are positively correlated, and the predictive model shows the validity of the proposed model with an R(2) value of 0...
August 18, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Thanwadee Chinda, Veeris Ammarapala, Suthathip Suanmali
The construction industry involves many hazardous activities that may expose workers to a wide variety of health hazards. Selection of construction safety equipment is crucial in ensuring workers' safety. This paper aims at examining key factors influencing management decisions concerning safety equipment selection, utilizing the exploratory factor analysis (EFA) and analytic hierarchy process (AHP) methods. A questionnaire survey is conducted in the construction companies in Bangkok, Thailand. The factor analysis of 103 sets of data extracted six key factors, namely, supplier agreements, supplier support, personal, equipment design, safety-related policies, and cost value factors, with a total of 20 associated items...
August 18, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Ángela Asensio-Martínez, Michael P Leiter, Santiago Gascón, Stephanie Gumuchian, Bárbara Masluk, Paola Herrera-Mercadal, Agustín Albesa, Javier García-Campayo
Employees working in the hospitality industry are constantly exposed to occupational stressors that may lead employees into experiencing the burnout syndrome. Research addressing the interactive effects of control, community and value congruence, to alleviate the impact of workplace demands on experiencing burnout is relatively limited. The present study examined relationships among control, community and value congruence, and workplace demands and the three components of burnout. A sample of 418 employees working in a variety of hospitality associations including restaurants and hotels in Spain were recruited...
August 16, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Michelle Cardoso, Fred Fulton, Colin McKinnon, Jack P Callaghan, Michel J Johnson, Wayne J Albert
A postural evaluation of commercial licensed truck drivers was conducted to determine the ergonomic benefits of a truck seat prototype in comparison to an Industry standard seat. Twenty commercially licensed truck drivers were recruited to perform a 90-min driving task. Postures were assessed using accelerometers and a backrest and seat pan pressure mapping system. Subjective discomfort measurements were monitored using two questionnaires: ratings of perceived discomfort (RPD) and the automotive seating discomfort questionnaire (ASDQ)...
August 16, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Ishfaq Ahmed, Muhammad Zeeshan Shaukat, Ahmad Usman, Muhammad Musarrat Nawaz, Mian Sajid Nazir
This research covers the current status of Occupational Health and Safety (OHS) related practices in the informal construction segment of Pakistan. Data was collected, through interviews, from 316 construction sites employing 3577 workers. The results of the study reveal that both employers and workers lack knowledge of OHS laws/standards and no practices of this nature are enacted at these construction sites. Alarmingly work-related accidents, whenever they happen, are not given due attention, and there is no formal injury-report system...
August 10, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Vitharanage Hashini Paramitha Vitharana, Thanwadee Chinda
Whole body vibration (WBV) exposure is a health hazard among workers, causing lower back pain (LBP) in the construction industry. This study examines key factors affecting LBP due to WBV exposure using the exploratory factor analysis and structural equation modelling. The results confirm five key factors, which are equipment, job-related, organizational, personal, and social- context, with their 17 associated items. The organizational factor is found the most important factor, as it influences the other four factors...
August 10, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Carl Mikael Lind, Mikael Forsman, Linda Maria Rose
RAMP I is a screening tool developed to support practitioners in screening for work-related musculoskeletal disorder risk factors related to manual handling. RAMP I, which is part of the RAMP tool, is based on research based studies combined with expert group judgments. More than 80 practitioners participated in the development of RAMP I. The tool consists of dichotomous assessment items grouped in seven categories. Acceptable reliability was found for a majority of the assessment items for 15 practitioners who were given 1 h training...
August 10, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Dorota Raczkiewicz, Tomasz Saran, Beata Sarecka-Hujar, Iwona Bojar
The aim of the study was to evaluate the risk factors for spinal pain in Polish, postmenopausal women, working in agriculture. The study included 1751 randomly selected postmenopausal women aged 45-65. The women were exposed to hazardous work conditions, in particular the use of force, heavy lifting, often more than 10 kg and with frequency of at least once a day. Two-thirds of them suffered from spinal pain, mostly in the lumbar, less frequently in cervical and thoracic spine. The prevalence of spinal pain depended on exposure to health risks associated with overwork, early onset of menopause and increasing age...
August 8, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Anna Marszałek, Grażyna Bartkowiak, Anna Dąbrowska, Sylwia Krzemińska, Krzysztof Łężak, Krzysztof Makowski, Joanna Bugajska
Mine rescuers' heat load under the same physical effort load (25% of the maximal oxygen uptake), using three types of breathing apparatus, in newly developed heat-removing underwear and outerwear was assessed for typical work conditions of mine rescuers, under milder and harsher ambient conditions of 32 and 38 °C, respectively, both at relative humidity of 85% and air velocity of 1.0 m/s. Expending physical effort at the same load while using different kinds of breathing apparatus resulted in a similar heat load...
August 7, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Raquel Fornaziero Gomes, Alessandra Giannella Samelli, Sylvio R Bistafa
PURPOSE: To determine the field efficacy of an earmuff used by the employees of a private company. METHODS: Measurements were performed using a double-channel noise dosimeter. Noise levels collected in one-third-octave bands were corrected with the frequency response for diffuse sound field and attenuation was compared with values provided by the manufacturer of the hearing protection device (HPD). RESULTS: Comparisons between the corrected noise reduction and the attenuation provided by the manufacturer of the HPD show no statistically significant differences in attenuation for most frequency bands, with higher mean values for the observed corrected noise reduction...
August 4, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Yung-Hsiang Cheng
The safety climate of an organization is considered as a leading indicator of potential risk for railway organizations. This study adopts the perceptual measurement-individual attribute approach to investigate the safety climate of a railway organization. The railway safety climate attributes are evaluated from the perspective of railway system staff. We identify four safety climate dimensions from exploratory factor analysis, namely, safety communication, safety training, safety management, and subjectively evaluated safety performance...
July 31, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Lessby Gómez, Carlos A Díaz, Gustavo A Orozco, José J García
PURPOSE: The intervertebral disc supports axial and shear forces generated during tasks such as lifting and carrying weights. The objective of this study was to determine the forces in the lumbar spine of workers carrying a bag on the head, on the shoulder, and on the anterior part of the trunk. MATERIALS AND METHODS: Kinematic measurements were recorded of 10 subjects carrying bags of 10, 20 and 25 kg on each of the three aforementioned positions. Then, a simple dynamic model implemented in a custom program was developed to determine the lumbar forces using the accelerations and positions obtained from the kinematic analysis...
July 28, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Miao Tian, Huiju Park, Jun Li, Heekwang Koo, Qinwen Xu
Load and footwear condition are two crucial elements varying the kinematic responses during walking, which probably lead to chronic injury. Fifteen healthy male individual with no obvious gait abnormalities participated in this study. Apart from a no-load condition, four external load conditions with two load levels were investigated. Work boots were compared with running shoes to determine footwear effects. Significant impacts were found for lower limb range of motion at certain joints when carrying loads...
July 11, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Hatice Esen, Tuğçen Hatipoğlu, Ahmet Cihan, Nilgün Fığlalı
INTRODUCTION: Shift patterns, work hours, work arrangements, and worker motivations have increasingly become key factors for job performance. The main objective of this paper is to design an expert system that identifies the negative effects of shift work and prioritizes mitigation efforts according to their importance in preventing these negative effects. The proposed expert system will be referred to as shift expert. METHODS: A thorough literature review is conducted to determine the effects of shift work on workers...
July 4, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Roope Lasanen, Markus K H Malo, Olavi Airaksinen, Jari Karhu, Juha Töyräs, Petro Julkunen
INTRODUCTION: Musculoskeletal symptoms related to using traditional computer workstations are common. To improve ergonomics of workstations quantitative methods for measuring muscle stress and strain are needed. We hypothesize that infrared thermography (IRT) is suited for this purpose. METHODS: This hypothesis was evaluated by estimating muscle activity in upright and traditional working postures with IRT and surface electromyography (sEMG). IRT and sEMG measurements were conducted in 14 female participants with both working postures...
June 13, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Boris Agarski, Miodrag Hadzistevic, Igor Budak, Slobodan Moraca, Djordje Vukelic
Nowadays every piece of working equipment and tool has to comply with safety standards and laws. This study investigated multi-criteria methods for selecting working equipment in order to optimise performance and occupational safety. The multi-criteria decision-making (MDCM) method was applied to the problem of selecting optimal working equipment using four different criterion weighting approaches (direct weighting, revised Simos procedure, Fuller's triangle and analytic hierarchy process). Groups of economic, technical, and safety criteria were defined and five weighting scenarios were developed...
June 12, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Toivo Niskanen
PURPOSE: The aim of this study was to examine how the developed taxonomy of cognitive work analysis (CWA) can be applied in combination with statistical analysis regarding different socio-technical categories. MATERIALS AND METHODS: This study applied a combination of quantitative and qualitative methodologies. Workers (n=120) and managers (n=85) in the chemical industry were asked in a questionnaire how different OSH measures were being implemented. The exploration of the qualitative CWA taxonomy consisted of an analysis of the following topics: (1) Work domain; (2) Control task; (3) Strategies; (4) Social organization and cooperation; and (5) Worker competencies...
June 9, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Maria C Gutierrez-Diez, Maria A Benito-Gonzalez, Ramon Sancibrian, Marco A Gandarillas-Gonzalez, Carlos Redondo-Figuero, Jose C Manuel-Palazuelos
INTRODUCTION: Minimally invasive surgery (MIS) has shown significant benefits for patients and healthcare systems. However, due to the poor ergonomic adaptation of operating rooms and surgical instruments, most surgeons suffer from pain caused by musculoskeletal disorders (MSDs). METHODS: A descriptive survey on MIS surgeons working on different surgical specialties has been carried out in Hospital Valdecilla (Spain). The aim is to determine the prevalence of MSDs by using a personal interview and the standardized Nordic questionnaire (SNQ)...
June 9, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Ayako Toyoshima, Michiko Moriyama, Kenichiro Asano, Keiko Mitsuhashi, Moshiur Rahman
The purpose of this study was to clarify the sleep disorders and sleep conditions among workers in a company through descriptive statistics. We analyzed the data of individuals with suspected sleep disorders based on the 1-year outpatient health insurance claim data of 2,800 employees in a company in Japan. We conducted a questionnaire survey to find out sleep condition and drug usage of the same participants. Claim data of 339 employees (12.1%) were selected for analysis, and the breakdown of diseases comprised 153 (5...
June 7, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
Fereydoon Laal, Rohollah Fallah Madvari, Davoud Balarak, Mahdi Mohammadi, Elahe Dortaj, Abdolali Khammar, Hossein Ali Adineh
INTRODUCTION: Most of work-related musculoskeletal disorders (MSDs) are associated with improper postures and poorly designed workstations. This study is an attempt to examine the prevalence and severity of MSDs as well as anthropometric dimensions among city bus drivers. METHODOLOGY: This cross-sectional study was carried out on 60 male bus drivers. Body discomfort chart (BDC) was used to evaluate MSDs. Spearman correlation was employed to examine the relationship between the body size and severity of discomfort...
June 7, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
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