Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety最新文献

{"title":"Ergonomic assessment of primary school furniture in United Arab Emirates","authors":"S. Bendak, K. AlSaleh, A. Al-Khalidi","doi":"10.3233/OER-130209","DOIUrl":"https://doi.org/10.3233/OER-130209","url":null,"abstract":"BACKGROUND: In many developing countries, anthropometric measures are rarely available and dimensions of school furniture are either based on anthropometric measures from developed countries or are arbitrarily determined. OBJECTIVE: The purpose of this study was to ergonomically assess classroom furniture dimensions in United Arab Emirates as compared to students’ anthropometric measures. METHODS: Relevant anthropometric dimensions of a sample of 200 grade 6 students were measured in two large schools in Dubai and Sharjah. Dimensions of furniture used by these students were also measured and compared to their anthropometric measures. RESULTS: Results show that there was a major mismatch between many anthropometric measures and classroom furniture dimensions. CONCLUSIONS: There is a great discrepancy between furniture dimensions and anthropometrics measures of students. To ensure postural comfort. a new set of furniture dimensions for grade 6 classrooms in is suggested based on anthropometric dimensions of students.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"6 1","pages":"85-95"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-130209","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70148346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Risk factors associated with live fire training: Buildup of heat stress and fatigue, recovery and role of micro-breaks","authors":"Ashutosh Mani, Kristin M Musolin, K. James, Georganne Kincer, B. Alexander, P. Succop, W. Lovett, William A. Jetter, A. Bhattacharya","doi":"10.3233/OER-130212","DOIUrl":"https://doi.org/10.3233/OER-130212","url":null,"abstract":"BACKGROUND: Forty five percent of on-duty firefighter deaths every year are cardiovascular (CV) related. Heat stress and fatigue buildup are two common occupational risk factors for firefighters. These risk factors may increase the firefighters’ chances of having cardiac events or even death. OBJECTIVE: Buildup of heat stress and fatigue in firefighters and their recovery from these stresses during live-fire training exercises was investigated. METHODS: Twenty full time firefighters, from two different fire-stations, performed live-fire training exercise constituting three real life firefighting scenarios and rest periods incorporated in between the scenarios. Core body temperature (CBT) and heart rate (HR) were measured in real time, using an FDA approved radio pill and a polar heart rate belt. Baseline and post-scenario measurements of perceptions of physical exertion, thermal stress and respiratory distress were also collected. RESULTS: Heart rate and CBT increased significantly with the progression of the training. The HR and CBT levels at the end of each rest period were significantly higher than the baseline values. The actual rest periods provided after each scenario were shorter than the time needed for adequate recovery. Most of the firefighters crossed the industrial limit of hyperthermia and maximum recommended level of HR elevation from baseline. Firefighters from one of the stations took micro-breaks during scenarios and were found to spend less percent time over the limit of hyperthermia. These firefighters also needed less time to recover to baseline levels of HR and CBT. CONCLUSIONS: There was significant heat stress and fatigue buildup as a result of the live-fire training exercise. Longer rest periods should be provided between scenarios to ensure recovery. Also, taking micro-breaks during a live fire training scenario might help in preventing heat stress and fatigue buildup.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"11 1","pages":"109-121"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-130212","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70148136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dressing behavior of construction workers in hot and humid weather","authors":"Albert P. C. Chan, Yang Yang, Francis K. W. Wong, M. Yam","doi":"10.3233/OER-140217","DOIUrl":"https://doi.org/10.3233/OER-140217","url":null,"abstract":"BACKGROUND: Construction workers in Hong Kong face high health risks of heat stress, solar ultraviolet radiation, and hazardous substances. A suitable work wear can lower exposure to these hazards, but the actual dressing behavior of construction workers remains unknown. OBJECTIVE: This study examines the current dressing patterns of construction workers and evaluates their limitations. METHODS: The dressing patterns of construction workers were investigated through unconcealed videotaped observation and questionnaire survey to enhance the reliability and validity of this research. RESULTS: Results indicate that construction workers were willing to wear short-sleeved shirts for a cooler feeling, although such dressing patterns may not protect them against solar ultraviolet radiation or hazardous substances. Their preferred darkcolored long pants can decrease the direct exposure to solar ultraviolet radiation and hazardous substances, but they absorb a large amount of radiation heat that increases the hazards of heat stress to the wearers. CONCLUSIONS: Thermal-related attributes were the most significant concerns of construction workers, which serve as key elements for designing appropriate work clothes for construction workers.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"4 1","pages":"177-186"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-140217","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70148443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A quantitative approach to assess upper limb fatigue in the work field","authors":"E. Spyropoulos, E. Chroni, Panagiota Katsakiori, G. Athanassiou","doi":"10.3233/OER-130206","DOIUrl":"https://doi.org/10.3233/OER-130206","url":null,"abstract":"BACKGROUND: Fatigue is a timely topic that has been studied in a laboratory setting, yet still remains difficult to apply in an industrial setting. OBJECTIVE: The aim of the present study was to define possible indicators of fatigue accumulation for an over shoulder level repetitive lifting work while performing lifting in two different ranges (LR1, LR2) in a supermarket. METHODS: Video-based kinematics parameters were estimated and surface electromyography (EMG) of the anterior deltoid muscle was analyzed for nine healthy female subjects. A static biomechanical model to assess the effect of LRs on fatigue and a new fatigue index to allow for the estimation of substantial fatigue onset time (TSFO) were developed. RESULTS: The data showed that fatigue accumulation strongly depends on the LRs. According to TSFO (time to substantial fatigue onset), shoulder muscle fatigue was unexpectedly lower when performing LR1 than LR2. CONCLUSIONS: The study shows a holistic analysis approach, suitable for the design of work/rest ratios in the occupational ergonomics field.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"11 1","pages":"45-57"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-130206","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70147803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seated inversion adversely affects vigilance tasks and suppresses heart rate and blood pressure","authors":"Deanne M. Smith, J. Mcauliffe, Michel J. Johnson, D. Button, David G. Behm","doi":"10.3233/OER-140215","DOIUrl":"https://doi.org/10.3233/OER-140215","url":null,"abstract":"","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"11 1","pages":"153-163"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-140215","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70148307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of overhead lifting on neck and shoulder muscle activity and upper extremity joint angles","authors":"F. Aghazadeh, Mohamed Mokrani, Saif K. Al-Qaisi, L. Ikuma, Marwa M. Hassan","doi":"10.3233/OER-2012-0200","DOIUrl":"https://doi.org/10.3233/OER-2012-0200","url":null,"abstract":"The purpose of this study was to determine the effects of varying amount of lifted weight on upper extremity joint angles and muscle activity of the neck and shoulder. Two-dimensional elbow and shoulder kinematics of overhead lifting were determined, and simultaneously surface electromyographic (EMG) data from the upper trapezius and sternocleidomastoid muscles were collected. Results show that as lifted weight increased, the EMG activity of both muscles increased accordingly. Increasing the weight also resulted in increased maximum elbow joint angle and decreased maximum shoulder joint angle, but the effects were not significant. Shoulder angle and muscle activity were highly correlated. The correlation coefficients ranged from 0.39 to 0.75 for the trapezius muscle and from 0.38 to 0.42 for the sternocleidomastoid muscle. The elbow joint angle had low to no influence on shoulder and neck muscle activity.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"10 1","pages":"165-174"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-2012-0200","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70151047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occupational stress factors and musculo-skeletal disease in patients at a rehabilitation center","authors":"K. Landau, R. Brauchler, Marianela Diaz-Meyer, J. Kiesel, A. Lenz, H. Meschke, Angelika Presl","doi":"10.3233/OER-2012-0198","DOIUrl":"https://doi.org/10.3233/OER-2012-0198","url":null,"abstract":"","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"10 1","pages":"139-153"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-2012-0198","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70150953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of platform motions upon the biomechanical demands of lifting tasks","authors":"S. MacKinnon, Julie Matthews, Michael W. R. Holmes, W. Albert","doi":"10.3233/OER-2012-0195","DOIUrl":"https://doi.org/10.3233/OER-2012-0195","url":null,"abstract":"","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"10 1","pages":"103-112"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-2012-0195","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70151172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparison of task and muscle specific isometric submaximal electromyography data normalization techniques","authors":"T. Murphy, M. Oliver","doi":"10.3233/OER-2011-0191","DOIUrl":"https://doi.org/10.3233/OER-2011-0191","url":null,"abstract":"","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"10 1","pages":"39-52"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-2011-0191","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70150098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Musculoskeletal symptoms among tea pluckers in India","authors":"P. C. Dihingia, K. Dewangan","doi":"10.3233/OER-2012-0193","DOIUrl":"https://doi.org/10.3233/OER-2012-0193","url":null,"abstract":"","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"10 1","pages":"69-81"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-2012-0193","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70150209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}