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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

Analysing workplace violence towards health care staff in public hospitals using alternative ordered response models: The case of north-eastern Turkey.
Authors: Çelik AK, Oktay E, Çebi K Abstract The main objective of this paper is to determine key factors that may have a significant effect on the verbal abuse, emotional abuse, and physical assault of health care workers in north-eastern Turkey. A self-administered survey was conducted to 450 health care workers in three well-established hospitals in Erzurum, Turkey. Due to the discrete and ordered nature of the dependent variable of the survey, the data were analysed using four distinctive ordered response models. Results revealed that several key variables were found to be a significant determinant...
Source: International Journal of Occupational Safety and Ergonomics - April 26, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

The cut-off point for tympanic temperature as a heat strain index for evaluation of outdoor workers: a field study.
CONCLUSION: The criterion of tympanic temperature equaling 37 °C was suggested for cut-off point for tympanic temperature as a heat strain index for outdoor environments evaluation. PMID: 28440104 [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

Assessment of the intraday variability of anthropometric measurements in the work environment: a pilot study.
Authors: Bragança S, Arezes P, Carvalho M, Ashdown SP, Leão C Abstract Sitting for long periods of time, both during work and leisure times, is the typical behavior of the modern society. Especially at work, where there is not much flexibility, adopting the sitting posture for the entire day can cause some short- and long-term effects. As workers' productivity and well-being relies on working conditions, evaluating the effects caused by the work postures assumes a very important role. The purpose of this paper was to evaluate the variation of some anthropometric measurement during one typical workday ...
Source: International Journal of Occupational Safety and Ergonomics - April 26, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

The effect of moisture content within multilayer protective clothing on protection from radiation and steam.
Authors: Su Y, Li J, Song G Abstract The moisture from skin sweat and atmospheric water affects thermal protective performance provided by multilayer protective clothing. Four levels of moisture content were selected to evaluate the impact of moisture on thermal protection under dry (thermal radiation) and wet (thermal radiation and low-pressure steam) heat exposure. Also, the role of moisture and its relationship with exposure time were analyzed based on skin heat flux and Henriques integral value. It was found that the addition of moisture to a fabric system results in differences in second---- and third-degree s...
Source: International Journal of Occupational Safety and Ergonomics - April 22, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

A path analysis model for explaining unsafe behavior at workplaces; the effect of perceived work pressure.
CONCLUSION: Managers should consider that in order to improve employees' safety behavior, work pressure should be reduced to a reasonable level, and concurrently, a supportive environment, which ensures a positive group attitude toward safety, should be provided. Replication of the study is recommended. PMID: 28399726 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - April 13, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Validation of the Polish version of the World Health Organization Disability Assessment Schedule (WHODAS 2.0) in an elderly (60-70-year-old) population.
CONCLUSION: The Polish version of the WHODAS 2.0 showed high reliability and validity; thus, it can be used to assess health, functioning, and disability in the elderly population of Poland. PMID: 28391768 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - April 12, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Information Presentation Compatibility in the Simple Digital Control Panel Design - Eye Tracking Study.
Authors: Michalski R Abstract Various designs of typical digital control panels were experimentally analyzed from both the effectiveness and efficiency point of view. Subjects performed information comparison tasks aimed at keeping the vehicle velocity at the same level. The experiment involved two versions of speedometers for displaying current and target velocities (clock-face and digital). The stimuli were also differentiated by the target velocity value (20, 50, and 80 km/h), and the correct response type (increase or decrease). Subjects' performance results along with the eye tracking data were qualitatively a...
Source: International Journal of Occupational Safety and Ergonomics - April 12, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Simultaneous Effect of Shift Work on Blood Pressure and Lipid Profile: A Path Analysis.
Authors: Hamta A, Kazemnejad A, Gholami-Fesharaki M, Rowzati M Abstract The aim of this study was to assess the direct and indirect effects of shift work (SW) on systolic blood pressure (SBP) and lipid profile of male workers. For this purpose, a cross-sectional study involving 6,539 male workers of Esfahan Mobarakeh Steel Company (EMSC) was conducted. From all the participants, 3065 (46.8%) were day workers, and the remaining were shift workers. The results of path analysis revealed that the most effective variables on SBP were body mass index (BMI), fasting blood sugar (FBS), triglycerides (TG) and SW with a tota...
Source: International Journal of Occupational Safety and Ergonomics - April 9, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Repeatability of EMG normalization of the neck and shoulder muscles in symptomatic office workers.
CONCLUSION: peak RMS and MF from the MVIC-normalization method can be measured with sufficient repeatability in symptomatic office workers. PMID: 28361603 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - April 2, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Trends of Occupational Hygiene in Finland.
Authors: Pääkkönen R, Koponen M Abstract The aim of this work is to evaluate and describe the current status of, and prospects for, the future of occupational hygiene in Finland. The main sources of information include a seminar held in the annual meeting of Finnish Occupational Hygiene Society, and interviews with different stakeholders. Nanotechnology and other new materials, changing work environments, circular economy including green jobs, new medical methods, and advances of construction methods were recognised as future challenges. Future work opportunities for occupational hygiene experts incl...
Source: International Journal of Occupational Safety and Ergonomics - March 26, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Evaluation of effect of different membership functions on risk assessment.
This study aims to define the relationship between risk degrees and risk indexes on different functional structures with the assumption that, risk degrees may not always present linear relationship with the risk indexes. In this wise, risk indexes; suitable for expert evaluation of working conditions and computed by using three different membership functions are determined. Among the membership functions used, one of them is preferred as linear and the others are preferred as nonlinear. Additionally, a new fuzzy risk assessment (RA) algorithm is developed by using these three membership functions. With this new fuzzy RA al...
Source: International Journal of Occupational Safety and Ergonomics - March 24, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Rheological and sensory properties of hydrophilic skin protection gels based on polyacrylates.
CONCLUSIONS: Polyacrylates are viable for use in industry to produce hydrophilic barrier creams suitable for skin protection. PMID: 28320261 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - March 23, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Horizontal lifelines - review of regulations and simple design method considering anchorage rigidity.
The objective of this paper is to propose a simple analytical design method for horizontal lifelines (HLL) that considers anchorage flexibility. This paper presents a short review of the standards and regulations/acts/codes concerning HLLs in Canada, the USA and Europe. A static analytical approach is proposed, considering anchorage flexibility. The analytical results are compared to a series of 42 dynamic fall tests and a SAP2000 numerical model. The experimental results show that the analytical method is a bit conservative and overestimates the line tension in most cases, with a maximum of 17%. The static SAP2000 results...
Source: International Journal of Occupational Safety and Ergonomics - March 11, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

The effect of artificial smoke compound on physiological responses, cognitive functions, and work performance during firefighting activities in a smoke-diving room: An intervention study.
This study investigated the combined effect of firefighting operations and exposure to smoke on physiological responses, cognitive and physical performance among firefighters. Each firefighter was engaged in two experimental conditions: (1) without artificial smoke; control (NS) and (2) with artificial smoke (WS). The results of data analysis revealed that heart rate (HR) and body temperature (BT) increased significantly after the firefighting activities in the two conditions relative to baseline. In addition, reaction time (RT) and correct response (CR) decreased after the activity relative to baseline and there was a sig...
Source: International Journal of Occupational Safety and Ergonomics - March 11, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

The Variation of Posture Quality Across Musical Instruments and Its Impact During Performances: Musicians, body posture and musical instrument.
This study compared posture quality required by different instruments or families of instruments. METHODS: Using an ad hoc postural observation instrument embracing 11 postural variables, four experts evaluated the postures of 100 students attending a Spanish higher conservatory of music. RESULTS: The agreement of the experts' evaluations was statistically confirmed by the Cohen κ value between .855 and 1.000 and a Kendall value between 0.709 and 1.000 (p 
Source: International Journal of Occupational Safety and Ergonomics - March 11, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Non-powered hand tools improvement researches for prevention of work-related problems: A review.
CONCLUSIONS: Literature shows that hand tool improvement studies have been given lesser importance in low-income and lower-middle-income countries. However, some work of significance is reported in agriculture sector of these countries. Hence, it is concluded that ergonomic intervention in hand tools is much needed for the industries which employ traditional methods of working. PMID: 28278007 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - March 11, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

The Influence of Axle Position and the Use of Accessories on the Activity of Upper Limbs Muscles during Manual Wheelchair Propulsion.
CONCLUSION: Changes in the wheelchair configuration can influence the ergonomics of manual wheelchair propulsion. Reducing the biomechanical loads may benefit users' mobility, independence and social participation. PMID: 28278008 [PubMed - as supplied by publisher] (Source: International Journal of Occupational Safety and Ergonomics)
Source: International Journal of Occupational Safety and Ergonomics - March 11, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Effects of weld damage on the dynamics of energy absorbing lanyards.
Authors: Katona DN, Bennett CR, McKoryk M, Brisson AL, Sparrey CJ Abstract Manufacturers recommend removing fall protection system components from service for any indication of weld spatter or tool damage; however, little is known about the specific effects of lanyard damage on fall arrest dynamics. Thirty-two energy absorbing lanyards were drop tested after being damaged with weld spatter, plasma torches and cutting tools and compared with new, undamaged lanyards. Two lanyards damaged with a plasma torch failed completely without deploying the energy absorber while weld spatter damage and tool cuts, up to 2/3 thro...
Source: International Journal of Occupational Safety and Ergonomics - January 28, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Self-reported wrist and finger symptoms associated with other physical/mental symptoms and use of computers/mobile phones.
This study aimed to determine the possible relation between self-reported wrist and finger symptoms (aches, pain, or numbness) and using computers/mobile phones, and analyze how the symptoms are specifically associated with utilizing desktop computers, portable computers or mini-computers, and mobile phones. A questionnaire was sent to 15,000 working-age Finns (between the ages of 18-65). Via a questionnaire, 723 persons reported wrist and finger symptoms often or more. Over 80% use mobile phones daily and less than 30% use desktop computers or the Internet daily at leisure. For example, over 89.8% had quite often or often...
Source: International Journal of Occupational Safety and Ergonomics - January 28, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Evaluating the usability of a commercial cooling vest in the Hong Kong industries.
Authors: Chan AP, Yang Y, Song WF Abstract Purpose -The provision of appropriate personal cooling vests is recognized as an effective measure to combat heat stress. However, personal cooling vests are not widely implemented in the Hong Kong industries. The current study aims to evaluate the usability of a hybrid cooling vest that is associated with the success of its application in industrial settings. Materials and methods - A self-administrated questionnaire focusing on 10 subjective attributes of cooling effect, ergonomic design, and usability of a hybrid cooling vest was administered with 232 occupational worke...
Source: International Journal of Occupational Safety and Ergonomics - January 21, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

A comparative study of vocational education and occupational safety and health training in China and the UK.
This article investigates thoroughly occupational safety and health (OSH) in China and the UK; moreover, the article performs a comparison of Chinese and British OSH training-related laws, regulations and education system. The following conclusions are drawn: China's work safety continues to improve, but there is still a large gap compared with the UK. In China a relatively complete vocational education and training (VET) system has been established. However, there exist some defects in OSH. In the UK, the employer will not only pay attention to employees' physiological health, but also to their mental health. The UK'...
Source: International Journal of Occupational Safety and Ergonomics - January 18, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Musculoskeletal Load Assessment of the Upper Limb Positions Subjectively Chosen as the Most Convenient.
Authors: Roman-Liu D, Wittek A, Kędzior K Abstract Work posture is determined by interdependence between work stand design, the necessity to perform given activities, and the anthropometric dimensions of the worker, but it also depends on individual preferences. The aim of the study was to compare the musculoskeletal load of the right upper extremity under conditions of imposed (standard) upper limb position and subjectively chosen ones, and to assess the influence of the changes in magnitude of the external force on the musculoskeletal load in the examined limb positions. Ten healthy male participants took part i...
Source: International Journal of Occupational Safety and Ergonomics - January 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

A Comparison of VDT Workstation Adjustment Methods by Evaluating and Optimizing VDT Operator's Seated Posture.
Authors: Nanthavanij S Abstract Three methods of visual display terminal (VDT) workstation adjustment were compared in this study in order to investigate their effects on the operator's seated posture. The first two methods were adjustments made both with and without any suggestion on the correct seated posture. The third method was an adjustment after which the workstation settings were initially set according to the results recommended by the IntelAd computer program. Ten male and 5 female participants were asked to readjust a VDT workstation until their most comfortable seated posture was obtained. When comparin...
Source: International Journal of Occupational Safety and Ergonomics - January 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Morphology-Related Isometric Trunk Strength of South African Manual Workers: Implications for Prevention of Occupational Low-Back Stress.
This study represents a first step in reporting the trunk strength of Xhosa workers in South Africa, in absolute and size-relative terms. Thirty-five male manual workers were tested isometrically while making maximal extension and flexion efforts at 0°, 23°, 46°, 69°, and 92° of stoop. The results show nonlinearity of the extensor-to-flexor (E/F) ratio of the trunk musculature. The E/F ratio increases in deep stoop because of a drop in flexor torques. The data suggest that predictions of flexor from extensor torques or vice versa can confidently be made so long as testing is done away from the fully fle...
Source: International Journal of Occupational Safety and Ergonomics - January 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Footedness and Mounting-Short Review and Two Case Studies.
Authors: Väyrynen S, Nevala-Puranen N, Kirvesoja H Abstract Footedness is a personal quality like handedness. Footedness may be associated with moving ability during mounting, dismounting, and jumping movements. Occupational accidents have occurred during movement at different working levels, during the use of access and exit systems, and during the mounting of vehicles. Aging can also affect accident risk and body laterality. For example, falling accidents on stairs are common among the elderly. One reason for accidents may be that the structure of the access system or stair system is unsuitable for individua...
Source: International Journal of Occupational Safety and Ergonomics - January 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Work-Related Accidents Among Young Workers in Finland.
Authors: Salminen S Abstract The aim of this study was to discover accident factors specific to young workers, using two accident data sets gathered at the same time but with different methods. The first data set consisted of 99 serious occupational accidents, which occured in Southern Finland in 1988 and 1989. The second data set was based on the interview study of over 13,000 people of whom 792 were involved in an accident at work. Both data sets showed consistently that the accident frequency of young workers was higher than that of older workers. The accidents of young workers, however, were less severe. Young ...
Source: International Journal of Occupational Safety and Ergonomics - January 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Defending the Wrist Deviation Test for Carpal Tunnel Syndrome Screening: A Comparison of Vibration Thresholds and Distal Motor Latency.
Authors: White KM, Congleton JJ, Pendleton OJ, Dale Huchingson R, Koppa RJ Abstract This research used distal motor latency (DML) and vibration thresholds (VT) to evaluate 84 hand activity and wrist deviation combinations to determine the best association with carpal tunnel syndrome (CTS). Female volunteers, 2 healthy and 2 CTS diagnosed, were age matched and operated a keyboard for 4 hrs a day. Room temperature was 28°C(±2). Beginning DML and VT were taken with a relaxed neutral posture hand. The wrist was deviated in a randomly selected combination, and determinations were taken at 5-min intervals. The...
Source: International Journal of Occupational Safety and Ergonomics - January 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

Adaptation to a New Workplace According to Reactivity and Values-Motives Coherence at Work.
Authors: Zalewska AM Abstract A new workplace is a result of changing a work post or undertaking a new job. Direct indices of adaptation to this situation (average mood at the workplace and job satisfaction) and the indirect ones (costs like health complaints and the level of depressing or facilitating anxiety) are analysed with regard to reactivity and values-motives coherence at work. Sixty bank workers were investigated. The obtained results confirm that mood and costs depend on reactivity, but satisfaction with work depends on coherence. Only achievement values-motives coherence at work differentiates direct an...
Source: International Journal of Occupational Safety and Ergonomics - January 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research

An Observation Method for Analyzing Operators' Routine Activity in Computerized Control Rooms.
Authors: Izsó L, Antaiovits M Abstract An activity analysis method was developed for studying the structure and dynamics of control room operators' activity during normal operation based on directly observable elements of the operators' behavior. The method assesses current activity along three dimensions in each 5-min period of the shift. Intensity characterizes arousal level, direction shows whether the activity is directed predominantly at the process control task, at something else, or miscellaneous. Motivation reflects if the activity is driven by intrinsic or extrinsic motivation. A case study is prese...
Source: International Journal of Occupational Safety and Ergonomics - January 14, 2017 Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research