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Saddle Seat Reduces Musculoskeletal Discomfort in Microsurgery Surgeons.
In this study, two types of seats, a saddle and a conventional, were evaluated on 73 microsurgical surgeons in terms of musculoskeletal discomfort. Corlett and Bishop's body part discomfort scale (BPD) was used to assess musculoskeletal discomfort before and after working with the seats. RESULTS: We found that the highest amount of discomfort that microsurgical surgeons acquire in the workplace was focused on their neck, shoulder, arm and back, respectively. During the work with a saddle seat, a significant reduction was found for discomfort values in neck, shoulder, arm, back, elbow and forearm, as well as the whole body (p
Source: International Journal of Occupational Safety and Ergonomics - October 18, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Relationships between Presenteeism and Work-Related Musculoskeletal Disorders among Physical Therapists in the Republic of Korea.
This study investigated the relationship between presenteeism and work-related musculoskeletal disorders (WMSDs) among physical therapists (PTs) in the Republic of Korea. Questionnaires were given to 600 PTs in Republic of Korea. General and occupational characteristics and the prevalence of presenteeism and absenteeism were self-reported on the questionnaire. Stepwise regression analyses were used to evaluate the effects of presenteeism and other variables on general and occupational characteristics. Of the 490 PTs who responded, 394 (81.4%) had reported at least one WMSDs. There was a low incidence rate of absenteeism, b...
Source: International Journal of Occupational Safety and Ergonomics - October 16, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Measuring limitations in activities of daily living (LADL): A population based validation of a short questionnaire.
Conclusion The new LADL-Q is a brief, reliable and valid tool for assessment of LADL in studies on musculoskeletal health. PMID: 29016244 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - October 12, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Physiological and perceptual strain of firefighters during graded exercise to exhaustion at 40 °C and 10 °C.
CONCLUSIONS: These findings support the use of perceptual identification to evaluate physiological stress. However, at very high intensities under hot conditions the perceptual strain was estimated higher than the physiological strain. More precise indexes are needed to include perceptual measures in safety standards. PMID: 28976263 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - October 6, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Low Back Pain and Its Association with Whole Body Vibration and Manual Material Handling Among Commercial Drivers in Sabah.
Authors: Awang Lukman K, Jeffree MS, Rampal KG Abstract A cross-sectional study was undertaken to determine the prevalence of low back pain (LBP) and its association with whole body vibration (WBV) and manual material handling (MMH). We studied 110 commercial vehicle drivers. A self-administered questionnaire and the human vibration V1-400Pro (QUEST) monitor were used. The prevalence of LBP was 66.4%. The percentage of drivers who had frequent manual handling of heavy loads was 45.5% and those who handled heavy loads in awkward postures accounted for 86.4%. The daily vibration, A(8) averaged at z axis was 0.25(0.06...
Source: International Journal of Occupational Safety and Ergonomics - October 6, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Validity and consistency assessment of accident analysis methods in the petroleum industry.
CONCLUSION: This study confirmed that the application of methods with pre-defined causes and logic tree could enhance the sensitivity and consistency of accident analysis. PMID: 28980875 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - October 6, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Operational leeway in the work situations: Do ergonomic risk assessment tools consider operational leeway for job analysis?
This study therefore proposes the indicators of the situational operational leeway to increase the representativeness and reliability of the risk assessment tools for MSDs. PMID: 28980878 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - October 6, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Skin Reactions to Latex In Dental Professionals - First Croatian Data.
CONCLUSIONS: While a large number of subjects (56.1%) reported skin lesions when using latex products at their workplace, SPT test was positive only in 7.0%. The results show that the prevalence of self-reported skin lesions was significantly related to the length of occupational exposure, with a substantial effect size (p
Source: International Journal of Occupational Safety and Ergonomics - October 6, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Effects of prolonged microscopic work on neck and back strain amongst male ENT clinicians and the benefits of a prototype postural support chair.
Authors: Vijendren A, Devereux G, Kenway B, Duffield K, Van Rompaey V, van de Heyning P, Yung M Abstract Musculoskeletal pain is a common occupational hazard experienced by surgeons. Otologists are predisposed to neck and back pain due to regular prolonged microscopic work. We conducted a prospective pilot study to investigate the effects of sustained microscopic work on the neck and back, its correlation to surgical experience and to assess the benefits of a prototype postural support chair (PSC) amongst 10 male ear, nose and throat (ENT) clinicians. We used a subjective measure of time to fatigue and pain for the...
Source: International Journal of Occupational Safety and Ergonomics - October 3, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Myoelectric manifestation of muscle fatigue in repetitive work detected by means of miniaturized sEMG sensors.
This study aims to measure the myoelectric manifestation of muscle fatigue of the three elbow flexor muscles during the execution of the work tasks in different risk conditions. Fifteen right-handed healthy adults were screened using a movement analysis laboratory consisting of optoelectronic, dynamometer and surface electromyographic systems. The main result indicates that the fatigue index calculated from the brachioradialis is sensitive to the interaction among risk classes, session and gender, and above all it is sensitive to the risk classes. PMID: 28942714 [PubMed - as supplied by publisher] (Source: Internationa...
Source: International Journal of Occupational Safety and Ergonomics - September 26, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Assessment of the Effectiveness of Modular Clothing Protecting Against the Cold Based on Physiological Tests.
Authors: Marszałek A, Bartkowiak G, Dąbrowska A Abstract At many work stations under cold environment, protective clothing, which is provided for the workers is characterized by an inadequate thermal insulation, which results in an adverse impact of cold environment on a worker's body. The purpose of this paper is to present a developed new ergonomic modular cold protective clothing, which allows for easy adaptation of the thermal insulation of clothing to worker's individual needs. This clothing was compared in a laboratory study with the clothing having been used so far by workers of cold environment using phys...
Source: International Journal of Occupational Safety and Ergonomics - September 21, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Comparison of Canadian firefighters and normal controls based on the submaximal fitness testing and strength considering age and gender.
Authors: Nazari G, MacDermid JC, Kin KESR, Overend TJ Abstract INTRODUCTION: Few studies have addressed whether the firefighters are more fit than the general population and possess sufficient levels of aerobic capacity and muscle strength to perform on duty tasks in a safe and efficient manner, considering age and gender. We aimed to evaluate the fitness levels of Hamilton firefighters, and to determine the effects of age and gender. METHODS: 89 participants were recruited. The Modified Canadian Aerobic Fitness Test was used to determine participants' estimated maximal oxygen consumptions (VO2-max) levels. For...
Source: International Journal of Occupational Safety and Ergonomics - September 9, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Ergonomic interventions for prevention of work-related musculoskeletal disorders in a small manufacturing assembly line.
Authors: Shin W, Park M Abstract The aim of this study involves performing improvements in workstation specification by using a 3-D human modeling tool and proposing well-balanced work scheduling (WBWS) to prevent work-related musculoskeletal disorders (WMSDs) in a small manufacturing plant. To analyze risk factors of WMSDs, various tasks in ten different types of workstations were evaluated with a detailed motion analysis using a customized checklist. Questionnaires were administered to 27 workers to evaluate symptoms related to WMSDs. Revised specifications of a workstation were suggested based on anthropometric ...
Source: International Journal of Occupational Safety and Ergonomics - September 8, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Evaluating the Blue-Light Hazard from Solid State Lighting.
Conclusions LEDs present no special concerns for blue-light hazard over some other common sources in typical use cases because photophobic responses limit exposure to bright sources. Where photophobic responses might not occur (e.g., eye surgery patients or premature infants) or where individuals suppress these responses (e.g., stage actors), caution is necessary. Evidence remains inconsistent regarding the risk of human retinal damage from long-term exposures to light insufficient to reach acute blue-light hazard thresholds. PMID: 28876164 [PubMed - as supplied by publisher] (Source: International Journal of Occupatio...
Source: International Journal of Occupational Safety and Ergonomics - September 8, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

An application of the Pareto Method in Surveys to Diagnose the Managers and Workers Perception of Occupational Safety and Health on Selected Polish Construction Sites.
Authors: Obolewicz J, Dąbrowski A Abstract The construction industry is an important sector of the economy in Poland. According to the National Labour Inspectorate (PIP) data of 2014, the number of victims of fatal accidents in the construction sector amounted to 80 as compared with 187 injured in all other sectors of economy in Poland. This paper presents the results of surveys on the impact of construction worker behaviour on the occupational safety and health outcomes. The surveys took into account the point of view of both construction site management (tactical level) and construction workers (o...
Source: International Journal of Occupational Safety and Ergonomics - September 8, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Evaluation of design alternatives for sewing scissors with respect to hand performance, discomfort and usability.
Authors: Dianat I, Asadollahi S, Nedaei M Abstract The effects of three re-designed models of sewing scissors on hand performance measures, discomfort and usability were investigated, and the results were compared with that of conventional scissors. The adjustments were made to the scissors handle with emphasis on more neutral wrist postures (bent handle - model A), correction of the thumb's position and movements (model B) and reducing hand/finger discomfort (model C) while working with the tool. The results showed some improvements in hand performance, muscular effort, usability and discomfort with scissors model...
Source: International Journal of Occupational Safety and Ergonomics - September 6, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

ERGONOMICS investigation for orientation of the handles of WOOD ROUTERS.
This study tries to improve the ergonomics of wood routing tasks, suggesting better handle orientations for hand held wood routers. In this study, seven different handle combinations were tested over two routing tasks (beading and dado) in regard with perceived discomfort, electromyography (EMG) of biceps brachi (BB) and extensor carpi radialis brevis (ECRB), and hand-arm vibrations (HAV). Handles with 30° and 60° inclinations were found more comfortable than previously 90° handle inclinations for routing tasks. The perceived discomfort in the dado task was found to be significantly higher than beading task (p
Source: International Journal of Occupational Safety and Ergonomics - September 6, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Effect of wearing hearing protectors on the audibility of railway warning signals - an experimental study.
Authors: Arz JP, Gettliffe JP, Delattre P Abstract The effect of wearing hearing protectors on the audibility of warning signals has been evaluated for three specific railway-related jobs: track workers, train drivers and platform agents. Masked thresholds were measured in the laboratory, on railway agents having normal hearing, by using warning signals and background noises typical of each job. Out of the 36 situations tested in total, statistical analyses showed that wearing the earplugs improves the perception in 11 situations; deteriorates the perception in 10 situations and has no significant effect in 15 situ...
Source: International Journal of Occupational Safety and Ergonomics - September 6, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Effects of falling weight impact on industrial safety helmets used in conjunction with eye and face protection devices.
Authors: Baszczyński K PMID: 28854863 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - September 2, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Human and organizational factors in Chinese hazardous chemical accidents: A case study of '8.12'Tianjin Port fire and explosion using the HFACS-HC.
This study showed the applicability of HFACS-HC in HCA analyses as well as the necessity to recommend this approach for future HCA investigations. PMID: 28854865 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - September 2, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Work environment investments: outcomes from three cases.
This article presents findings from a seven-step interventions process aimed at examining and following-up work environment investments in small and medium sized enterprises (SMEs), with a particular focus on air contaminants. Three different cases were analyzed and included in the study: (i) an educational center for welding; (ii) a paint station in furniture manufacturing; and (iii) a joinery in furniture manufacturing. The result shows that the work environment investments were highly appreciated by the employees and managers, but at the same time the investment could be optimized through markedly decreased exposure lev...
Source: International Journal of Occupational Safety and Ergonomics - September 2, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Heavy Metals Found in the Breathing Zone, Toenails and Lung Function of Welders Working in an Air-Conditioned Welding Workplace.
This study intended to assess the exposure to metal elements in the welder's breathing zone and toenail sample. Heavy metal concentration was analysed by using inductively coupled plasma mass spectrometry. The lung function test was also conducted and analysed using statistical approaches. Chromium and manganese concentrations in the breathing zone exceeded the permissible exposure limit stipulated by Malaysian regulations. A similar trend was obtained in the concentration of heavy metals in the breathing zone air sampling and in the welder's toenail. Although there was no statistically significant decrease in the lung fun...
Source: International Journal of Occupational Safety and Ergonomics - August 30, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

One, two or three dimensions of work engagement? Testing the factorial validity of the Utrecht work engagement scale (UWES) on a sample of Polish employees.
This study tested the factorial validity of 11 different UWES factorial models that are available in the literature by using a confirmatory factor analysis approach on a large sample of multi-occupational Polish employees (N = 1420). The two-factor UWES-6, comprising vigor and dedication, was found to be reliable and remained invariant across samples drawn from four different organisational positions. It also presented a better fit than the three-factor UWES-9, which is a scale that is used as a standard in contemporary research on work engagement. The findings suggest that the three-factor UWES-9 might not be an optimal m...
Source: International Journal of Occupational Safety and Ergonomics - August 30, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Interactive mechanism of working environments and construction behaviors with cognitive work analysis: an elevator installation case study.
This study aims to delineate these mechanisms using cognitive work analysis (CWA) for a case study of elevator installation. Elevator installation was selected for study because it involves operations at heights: falls from heights remain a major cause of construction worker mortality. This study adopts a mixed research approach based on three research methodology stages. This research deconstructs the details of the working environment, workers' decision-making processes, the strategies chosen given environmental conditions, and the conceptual model for workers' behaviors, which jointly depict environment-behavior mechani...
Source: International Journal of Occupational Safety and Ergonomics - August 30, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Pushing, pulling, and manoeuvring an industrial cart: a psychophysiological study.
Authors: Giagloglou E, Radenkovic M, Brankovic S, Antoniou P, Zivanovic-Macuzic I Abstract One of the most frequent manual occupational tasks involves the pushing and pulling of a cart. Although several studies have associated health risks to pushing and pulling, the effects are not clear since occupational tasks have social, cognitive, and physical components. The present work investigates a real case of a pushing and pulling occupational task from a manufacturing company. The study initially characterises the case in accordance with Standard No. ISO 11228-2:2007 as low risk. An experiment with 14 individuals duri...
Source: International Journal of Occupational Safety and Ergonomics - August 30, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Occupational Safety and Health (Osh) Management In Construction Industry: A Review.
Authors: Jaafar MH, Arifin K, Aiyub K, Razman MR, Syakir Ishak MI, Samsurijan MS Abstract The construction industry plays a significant role in contributing to economy and development globally. During the process of construction, various hazards coupled with the unique nature of the industry contribute to high fatality rates. This review was carried out by referring to previous published studies and related Malaysian legislation documents. Four main elements consisting of human, worksite, management and external elements which cause occupational accidents and illnesses were identified. External and management eleme...
Source: International Journal of Occupational Safety and Ergonomics - August 30, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

The input efficiency of chord keyboards.
This study focused on an innovative mobile input device model that integrated ergonomic design principles to create a chord keyboard for use in concert with pointing devices. We conducted usability tests to demonstrate the operating performances of such keyboards using keys with four characters per key. Twelve right-handed subjects between the ages of 20 and 30 years old and with no wrist disability participated in the usability tests. We analyzed the resulting data to compare the differences among the means. The results indicated that keyboards with multiple characters per key created some confusion among users but that k...
Source: International Journal of Occupational Safety and Ergonomics - August 30, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Key factors influencing management decisions concerning safety equipment selection.
Authors: Chinda T, Ammarapala V, Suanmali S Abstract 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, na...
Source: International Journal of Occupational Safety and Ergonomics - August 20, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Driver's Mental Workload Prediction Model Based on Physiological Indices.
Authors: Yan S, Tran CC, Wei Y, Habiyaremye JL Abstract 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 positive...
Source: International Journal of Occupational Safety and Ergonomics - August 20, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Ergonomic Evaluation of a New Truck Seat Design: A Field Study.
Authors: Cardoso M, Fulton F, McKinnon C, Callaghan JP, Johnson MJ, Albert WJ Abstract 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 (...
Source: International Journal of Occupational Safety and Ergonomics - August 17, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Value Congruence, Control, Sense of Community and Demands as Determinants of Burnout Syndrome among Hospitality Workers.
Authors: Asensio-Martínez Á, Leiter MP, Gascón S, Gumuchian S, Masluk B, Herrera-Mercadal P, Albesa A, García-Campayo J Abstract 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 co...
Source: International Journal of Occupational Safety and Ergonomics - August 17, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Development and evaluation of RAMP I - a practitioner's tool for screening of musculoskeletal disorder risk factors in manual handling.
Authors: Lind CM, Forsman M, Rose LM Abstract 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. The usability evaluation points to...
Source: International Journal of Occupational Safety and Ergonomics - August 12, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Structural equation modelling of lower back pain due to whole body vibration exposure 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. The results also show that appropriate seat type, specific training program, job rotation, workers' satisfaction, and workers' physical condition are crucial in reducing LBP due to WBV exposure. Moreover, provision of new machines withou...
Source: International Journal of Occupational Safety and Ergonomics - August 12, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Occupational health and safety issues at informal economic segment of Pakistan: a survey of construction sites.
This study, if properly utilized, may also enable employers of the sector by increasing their knowledge about OHS practices and as a result, try to offer safer environments for their workers. PMID: 28795938 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - August 12, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Work conditions in agriculture as risk factors of spinal pain in postmenopausal women.
Authors: Raczkiewicz D, Saran T, Sarecka-Hujar B, Bojar I Abstract 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 assoc...
Source: International Journal of Occupational Safety and Ergonomics - August 10, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Earmuff efficacy in the workplace using F-MIRE - a case report.
CONCLUSIONS: The fact that over 60% of the employees had frequency band attenuations below that expected for most frequency bands underscores the need for individual assessment of attenuation provided by the HPD in the workplace, to assess whether the HPD is functional and what provisions should be implemented in a specific workplace. PMID: 28776454 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - August 6, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Railway safety climate: A study on organizational development.
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. Analytical results indicate that the safety climate differs at vertical and horizontal organizational levels. This study contributes to the literature by providing empirical evidence of the multilevel safet...
Source: International Journal of Occupational Safety and Ergonomics - August 2, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Dynamic analysis of forces in the lumbar spine during bag carrying.
CONCLUSION: Carrying bags on the anterior part of the trunk generated higher lumbar forces compared to those developed by carrying the bag on the head and on the shoulder. Force levels suggest that this activity represents a moderate risk for the subjects. However, future biomechanical models should be developed to analyze the cumulative effect in the discs when longer periods of time are spent in this activity. PMID: 28753120 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - July 30, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Effects of load carriage and work boots on lower limb kinematics of industrial workers.
Authors: Tian M, Park H, Li J, Koo H, Xu Q Abstract 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. A greater hip and ankle flexion-extension while wearing t...
Source: International Journal of Occupational Safety and Ergonomics - July 13, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Expert System Application for Prioritizing Preventive Actions for Shift Work: Shift Expert.
Authors: Esen H, Hatipoğlu T, Cihan A, Fığlalı N Abstract 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. Our work indicates that shift w...
Source: International Journal of Occupational Safety and Ergonomics - July 5, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Comparison of approaches to weighting of multiple criteria for selecting equipment to optimise performance and safety.
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. Although the four weighting methods produced similar results, in some situations they produced different criterion weighti...
Source: International Journal of Occupational Safety and Ergonomics - June 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Infrared thermography reveals effect of working posture on skin temperature in office workers.
Authors: Lasanen R, Malo MKH, Airaksinen O, Karhu J, Töyräs J, Julkunen P Abstract 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 w...
Source: International Journal of Occupational Safety and Ergonomics - June 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

A Study of the Prevalence of Musculoskeletal Disorders in Surgeons Performing Minimally Invasive Surgery.
CONCLUSIONS: The prevalence of MSDs is higher in MIS surgeons than in any other occupational group. The most vulnerable group is experienced surgeons and there is a potential risk that symptoms will be increased in the future. Muscle strength is revealed as a protective factor against MSDs. PMID: 28598769 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - June 11, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Implementation of a novel taxonomy based on cognitive work analysis in the assessment of safety performance.
CONCLUSIONS: The following hypotheses were supported: (1) Activities of the management had positive impacts on the following aggregated variables: Near-accident investigation and instructions (H1), occupational safety and health (OSH) training (H2), Operations, technical processes and safe use of chemicals (H3), Use of personal protective equipment" (H4), and Measuring, follow-up and prevention of major-accidents (H5). The CWA taxonomy was applied in mixed methods when testing H1-H5. A special approach is to analyze the work demands of complex socio-technical systems with the taxonomy of CWA. In problem-solving the CW...
Source: International Journal of Occupational Safety and Ergonomics - June 11, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Psychosocial and Ergonomic Survey of Office and Field Jobs in a Utility Company.
DISCUSSION: For most psychosocial dimensions, the organizational design and management system in place, as well as the overall cultural environment in which it operates, create a much stronger and decisive impact than job specific factors. PMID: 28589755 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - June 8, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Relationship between Musculoskeletal Disorders and Anthropometric Indices among Bus Drivers in Zahedan City.
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. RESULTS: Data analysis showed that discomfort reported in the lower back (33.3%), upper back (18.3%) and knee (15%) were severe and there was a direct and significant correlation between the body mass index (BMI) and the severity of discomfor...
Source: International Journal of Occupational Safety and Ergonomics - June 8, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

"Mine Rescuers' Heat Load during the Expenditure of Physical Effort in a Hot Environment, Using Ventilated Underwear and Selected Breathing Apparatus".
"Mine Rescuers' Heat Load during the Expenditure of Physical Effort in a Hot Environment, Using Ventilated Underwear and Selected Breathing Apparatus". Int J Occup Saf Ergon. 2017 Jun 07;:1-38 Authors: Anna M, Bugajska J, Grażyna B, Anna D, Krzemińska S, Łężak K, Makowski K Abstract Mine rescuers' heat load under the same physical effort load (25% of the maximal oxygen uptake), with the use of three types of breathing apparatuses, in newly-developed heat-removing underwear and outerwear, was assessed under typical work conditions of mine rescuers, under milder and harsher ambient conditi...
Source: International Journal of Occupational Safety and Ergonomics - June 8, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Workers sleep condition and related disorders in Japan: An analysis based on health insurance claims data and questionnaire.
Authors: Toyoshima A, Moriyama M, Asano K, Mitsuhashi K, Rahman M Abstract 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 (5.5%) with sleep disorde...
Source: International Journal of Occupational Safety and Ergonomics - June 8, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Variability of Energy Input into Selected Subsystems of the Human-Glove-Tool System: a theoretical study.
Authors: Hermann T, Dobry MW Abstract The article presents an application of the energy method to assess the energy input introduced into two subsystems of the human-glove-tool system. To achieve this aim, a physical model of the system was developed. It consists of dynamic models of the human body and the glove described in the Standard No. ISO 10068:2012, and a model of a hand-held power tool. The energy input introduced into the subsystems, i.e., the human body and the glove, was analysed in the domain of energy and involved calculating three component energy inputs of forces. The energy model was solved using n...
Source: International Journal of Occupational Safety and Ergonomics - April 29, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Evaluation of the controlled grip force exertion tasks associated with age, gender, handedness and target force level.
CONCLUSIONS: The results of this study can be used as hand function evaluation guidelines. In addition, this study can be used as a tool for physiotherapy to improve hand function and prevent its decline in elderly people. PMID: 28436312 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - April 26, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research