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International Journal of Occupational Safety and Ergonomics: JOSE

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https://www.readbyqxmd.com/read/28693378/effects-of-load-carriage-and-work-boots-on-lower-limb-kinematics-of-industrial-workers
#1
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
https://www.readbyqxmd.com/read/28675084/expert-system-application-for-prioritizing-preventive-actions-for-shift-work-shift-expert
#2
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
https://www.readbyqxmd.com/read/28609182/infrared-thermography-reveals-effect-of-working-posture-on-skin-temperature-in-office-workers
#3
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
https://www.readbyqxmd.com/read/28604273/comparison-of-approaches-to-weighting-of-multiple-criteria-for-selecting-equipment-to-optimise-performance-and-safety
#4
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
https://www.readbyqxmd.com/read/28598772/implementation-of-a-novel-taxonomy-based-on-cognitive-work-analysis-in-the-assessment-of-safety-performance
#5
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
https://www.readbyqxmd.com/read/28598769/a-study-of-the-prevalence-of-musculoskeletal-disorders-in-surgeons-performing-minimally-invasive-surgery
#6
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
https://www.readbyqxmd.com/read/28590152/workers-sleep-condition-and-related-disorders-in-japan-an-analysis-based-on-health-insurance-claims-data-and-questionnaire
#7
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
https://www.readbyqxmd.com/read/28589786/-mine-rescuers-heat-load-during-the-expenditure-of-physical-effort-in-a-hot-environment-using-ventilated-underwear-and-selected-breathing-apparatus
#8
Marszałek Anna, Joanna Bugajska, Bartkowiak Grażyna, Dąbrowska Anna, Sylwia Krzemińska, Krzysztof Łężak, Krzysztof Makowski
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 conditions of 32°C and 38°C, respectively, both at relative humidity of 85% and air velocity of 1.0 m/s. It was demonstrated that expending physical effort at the same load while using different kinds of breathing apparatus had resulted in a similar heat load...
June 7, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28589778/relationship-between-musculoskeletal-disorders-and-anthropometric-indices-among-bus-drivers-in-zahedan-city
#9
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
https://www.readbyqxmd.com/read/28589755/psychosocial-and-ergonomic-survey-of-office-and-field-jobs-in-a-utility-company
#10
Denis A Coelho, Carla S D Tavares, Tânia M Lima, Miguel L Lourenço
INTRODUCTION: The effect of different kinds of work on the psychosocial assessment of workers under the same management and organizational environment is investigated. METHODS: A voluntary assessment in a utility company was carried out using the short version of the Copenhagen Psychosocial Questionnaire (CoPsoQ) in two occasions, one and a half year apart. Initially, 25 office workers participated (11 men and 14 women), while 14 of those workers (8 women and 6 men) participated in the second assessment together with 32 field workers...
June 7, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28446064/variability-of-energy-input-into-selected-subsystems-of-the-human-glove-tool-system-a-theoretical-study
#11
Tomasz Hermann, Marian Witalis Dobry
This 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. This consists of dynamic models of the human body and the glove described in 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...
May 31, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28436312/evaluation-of-the-controlled-grip-force-exertion-tasks-associated-with-age-gender-handedness-and-target-force-level
#12
Kyeong-Hee Choi, Dae-Min Kim, Sung-Yong Lee, Jun-Hyub Lee, Yong-Ku Kong
INTRODUCTION: Force control of the hand is an essential factor for operating tools and moving objects. Therefore, a method for quantifying hand functionality more accurately and objectively is very important. METHODS: The present study included 60 healthy participants (30 elderly and 30 young adults) to evaluate the effects of age, gender and target force levels on tracking performance. Tracking performance was quantified by measuring the difference between target force levels and exerted force...
May 23, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28427297/the-effect-of-moisture-content-within-multilayer-protective-clothing-on-protection-from-radiation-and-steam
#13
Yun Su, Jun Li, Guowen Song
The moisture from skin sweat and atmospheric water affects the 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. The addition of moisture to a fabric system was found to result in differences in second-degree and third-degree skin burn times...
May 23, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28440127/assessment-of-the-intraday-variability-of-anthropometric-measurements-in-the-work-environment-a-pilot-study
#14
Sara Bragança, Pedro Arezes, Miguel Carvalho, Susan P Ashdown, Celina Leão
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-term and long-term effects. As workers' productivity and well-being relies on working conditions, evaluating the effects caused by work postures assumes a very important role. The purpose of this article was to evaluate the variation of some anthropometric measurements during one typical workday to understand whether the known long-term effects can also be seen and quantified in an 8-h period...
May 19, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28330411/evaluation-of-effect-of-different-membership-functions-on-risk-assessment
#15
Kumru Didem Atalay, Gülin Feryal Can, Ergün Eraslan
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 a linear relationship with the risk indexes. In this way, risk indexes suitable for expert evaluation of working conditions and computed using three different membership functions are determined. Among the membership functions used, one is preferred as linear and the others are preferred as non-linear. Additionally, a new fuzzy risk assessment (RA) algorithm is developed using these three membership functions...
May 10, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28440104/the-cut-off-point-for-tympanic-temperature-as-a-heat-strain-index-for-evaluation-of-outdoor-workers-a-field-study
#16
Hamidreza Heidari, Farideh Golbabaei, Aliakbar Shamsipour, Abbas Rahimi Forushani, Abbasali Gaeini
OBJECTIVES: The aims of this study were (a) to assess the agreement coefficient between tympanic temperatures and the most popular and valid heat stress index, wet bulb globe temperature (WBGT), in outdoor environments; (b) to determine a cut-off point for tympanic temperature as a heat strain index for evaluation of outdoor workers. METHODS: 1452 measurements of WBGT index and tympanic temperature were recorded for outdoor workers from nine different climatic regions...
May 2, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28391769/information-presentation-compatibility-in-a-simple-digital-control-panel-design-eye-tracking-study
#17
Rafał Michalski
Various designs of typical digital control panels were analyzed experimentally from both the effectiveness and efficiency points of view. Subjects performed information comparison tasks aimed at keeping 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 and quantitatively analyzed for all 24 experimental conditions...
May 2, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28391768/validation-of-the-polish-version-of-the-world-health-organization-disability-assessment-schedule-whodas-2-0-in-an-elderly-population-60-70-years%C3%A2-old
#18
Agnieszka Ćwirlej-Sozańska, Anna Wilmowska-Pietruszyńska, Bernard Sozański
PURPOSE: To assess the reliability and validity of the Polish version of the 36-point World Health Organization Disability Assessment Schedule (WHODAS 2.0) in an elderly population. METHOD: One thousand randomly selected individuals, aged 60-70 years, living in south-eastern Poland were assessed using the Polish version of the WHODAS 2.0. RESULTS: The analysis confirmed the high reliability and validity of the tool. Cronbach's α index was 0...
May 2, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28301984/comparisons-of-ergonomic-evaluation-tools-alla-rula-reba-and-owas-for-farm-work
#19
Yong-Ku Kong, Sung-Yong Lee, Kyung-Suk Lee, Dae-Min Kim
INTRODUCTION: The purpose of this study was to validate the agricultural lower limb assessment (ALLA) ergonomic checklist, which was developed for various agricultural tasks in Korea. METHODS: One hundred and ninety-six working postures were selected from the real agricultural tasks to verify ALLA, a lower limb body posture assessment tool, and then evaluated by 16 ergonomic experts. Hit rate, quadratic weighted κ, one-way analysis of variance and t-test analyses were applied to compare ALLA with other assessment tools...
May 2, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28399726/a-path-analysis-model-for-explaining-unsafe-behavior-in-workplaces-the-effect-of-perceived-work-pressure
#20
Fakhradin Ghasemi, Omid Kalatpour, Abbas Moghimbeigi, Iraj Mohhamadfam
BACKGROUND: Unsafe behavior is closely related to occupational accidents. Work pressure is one the main factors affecting employees' behavior. The aim of the present study was to provide a path analysis model for explaining how work pressure affects safety behavior. METHODS: Using a self-administered questionnaire, six variables supposed to affect safety employees' behavior were measured. The path analysis model was constructed based on several hypotheses. The goodness of fit of the model was assessed using both absolute and comparative fit indices...
April 26, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
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