Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety最新文献_第2页

Neck muscle activity during simulated in-flight static neck postures and helmet mounted equipment 在模拟飞行中的静态颈部姿势和头盔安装设备中的颈部肌肉活动

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2017-05-06 DOI: 10.3233/OER-170245

C. McKinnon, C. Dickerson, A. Laing, J. Callaghan

引用次数: 8

Ergonomic design of a Bangladesh bus passenger seat 孟加拉巴士乘客座椅的人体工学设计

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2017-05-06 DOI: 10.3233/OER-170249

M. Hoque, P. Halder, Pushpendu Kumar Fouzder, Zafor Iqbal

引用次数: 7

Protective firefighting boots and their impact on the lower body and injury: A narrative review 消防保护靴及其对下半身和伤害的影响：叙述性综述

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2017-05-06 DOI: 10.3233/OER-170246

W. Spratford, Vy Vu, N. Ball, Anthony Walker

引用次数: 4

Evaluation of shoulder strain during multi- directional forceful arm exertions 评估在多方向有力的手臂运动中肩劳损

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2017-05-06 DOI: 10.3233/OER-170248

McKayla Eddy, Christopher W. Moore, A. Nimbarte

引用次数: 1

Analysis of internal torso loading in asymmetric and dynamic lifting tasks 非对称和动态升降任务中躯干内部载荷分析

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2017-05-06 DOI: 10.3233/OER-170247

A. Sengupta, Xiaopeng Jiang

{"title":"Analysis of internal torso loading in asymmetric and dynamic lifting tasks","authors":"A. Sengupta, Xiaopeng Jiang","doi":"10.3233/OER-170247","DOIUrl":"https://doi.org/10.3233/OER-170247","url":null,"abstract":"BACKGROUND: Asymmetric and dynamic lifting is known to be one of the leading causes of occupational lower back disorders (LBDs). Biomechanical modeling has been utilized to investigate lifting task characteristics so that the task demands can be kept within a limit, and internal muscles and joints are not injured. OBJECTIVE: This study implemented AnyBody to analyze internal torso loading in asymmetric and dynamic lifting tasks. METHODS: A six-camera motion capture (mocap) system collected dynamic motion data of lifting 30 lb (13.6 kg) weight at 0o, 30o and 60o asymmetry. The mocap data drove the AnyBody model, and the study investigated the effect of the asymmetry. RESULTS: Erector spinae was the most activated muscle for both symmetric and asymmetric lifting. When lifting origin became more asymmetric toward right, erector spinae activity was reduced, but oblique muscles increased their share of activity to counter the external moment. Most muscle tensions peaked at the lift initiation phase except left external oblique and right internal oblique. Left external oblique played a minor role in the right asymmetric lifting task, and the difference of activation for right internal oblique may be due to variance of the motion. Surprisingly the lift asymmetry decreased both compression and shear forces at the L5/S1 joint. CONCLUSIONS: This finding contradicted the results obtained from other research studies. The reduction in spine forces is postulated to have resulted from the increased oblique muscles’ share in the production of back extensor moment. Since these muscles have longer moment arms, they generated lesser spine force to counteract the external moment. The subject also tended to squat as lifting origin became asymmetric, which effectively reduced the load moment on the spine.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"13 1","pages":"139-146"},"PeriodicalIF":0.0,"publicationDate":"2017-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-170247","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44936171","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}

引用次数: 0

Effect of background music in a computer word processing task 背景音乐对计算机文字处理任务的影响

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2016-03-09 DOI: 10.3233/OER-150232

A. Sengupta, Xiaopeng Jiang

{"title":"Effect of background music in a computer word processing task","authors":"A. Sengupta, Xiaopeng Jiang","doi":"10.3233/OER-150232","DOIUrl":"https://doi.org/10.3233/OER-150232","url":null,"abstract":"BACKGROUND: The relaxing effect of music has been shown to reduce stress induced subjective anxiety and improve the performance of stressful cognitive tasks. OBJECTIVE: This experimental study evaluated the effect of music and induced mental load in a word processing task in terms of correct strokes and accuracy, typing force, variability of typing force and EMG (electromyography) of extensor digitorum muscle. METHODS: Eight subjects participated in the study. A 2 × 2 repeated measure design was adopted, with or without background music, and with or without induced mental load. A computer algorithm detected the shift, drift and fidget patterns of finger and hand movements, which caused the variation of the typing force. RESULTS: Although the overall typing productivity was compromised by music by 3.1%, the beneficial effect of music was the reduction of standard deviation of typing force by 23.2%, indicating a smoother or less erratic hand movement during typing. CONCLUSIONS: The behavior change by music resulted in reduction in hand motions during typing may reduce the risk of musculoskeletal disorder related to typing task.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"12 1","pages":"165-177"},"PeriodicalIF":0.0,"publicationDate":"2016-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-150232","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70148541","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}

引用次数: 5

Effect of hand-held loads on the maximum reach envelope 手持载荷对最大到达包络线的影响

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2016-03-09 DOI: 10.3233/OER-160234

H. Johnston, C. Dewis, J. Kozey

{"title":"Effect of hand-held loads on the maximum reach envelope","authors":"H. Johnston, C. Dewis, J. Kozey","doi":"10.3233/OER-160234","DOIUrl":"https://doi.org/10.3233/OER-160234","url":null,"abstract":"BACKGROUND: Reach envelope used in the design and layout of workstation is important for decreasing fatigue and injury by improving productivity, health, and safety. OBJECTIVES: The objective of this investigation was to determine differences between maximum reach envelope with and without a load in a seated position. METHODS: Measurements were conducted using a computerized potentiometric system for anthropometric measures (CPSAM). Participants performed six trials of each three load conditions of 0 Kg, 0.5 Kg and 1.0 Kg. RESULTS: Cylindrical coordinates (r, θ ,Z )were determined in panels of Z-level by θ angle in relation to each participant’s acromion. Mean and median reach values were computed for each panel to create the envelope. The reach envelope for the load conditions was smaller than the control (0 Kg). There was no significant difference between the two load conditions. CONCLUSIONS: The decrease in reach envelope when a load is added suggests that load is a factor affecting reach and should be considered when designing a workspace. Layouts requiring hand-held items such as tools or protective equipment may require considerations of a decreased reach. At what specific load level reach is affected should be further investigated.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"26 1","pages":"179-187"},"PeriodicalIF":0.0,"publicationDate":"2016-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-160234","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70148814","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}

引用次数: 7

Legflow® increases lower-limb venous haemodynamics when seated: A randomised controlled trial Legflow®增加坐下时下肢静脉血流动力学:一项随机对照试验

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2016-03-09 DOI: 10.3233/OER-150231

I. Braithwaite, I. Braithwaite, S. Mackintosh, Anthony Mallon, M. Weatherall, R. Beasley, R. Beasley

引用次数: 1

Biomechanical evaluation and perceived exertion of a lateral patient-handling task 侧位病人处理任务的生物力学评价和感知用力

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2016-03-09 DOI: 10.3233/OER-160233

Kelsey E. Drew, J. Kozey, J. Moreside

{"title":"Biomechanical evaluation and perceived exertion of a lateral patient-handling task","authors":"Kelsey E. Drew, J. Kozey, J. Moreside","doi":"10.3233/OER-160233","DOIUrl":"https://doi.org/10.3233/OER-160233","url":null,"abstract":"BACKGROUND: Slide sheets (SS) are friction-reducing devices used during patient-handling tasks. A modified SS position (modSS), with the slider placed beneath the regular bedsheet, may decrease a caregiver’s workload and reduce low back injuries, as the SS could remain in place for longer periods of time, thus reducing patient re-positioning frequency. OBJECTIVE: To investigate the efficacy of modSS use on back muscle activity, pulling force, and perceived effort during lateral patient-handling tasks, and determine whether lumbar electromyography (EMG) correlates with perceived effort (RPE) during such tasks. METHODS: Ten females completed 9 lateral patient-handling tasks with 3 simulated patients (45 kg, 68 kg and 91 kg) and 3 SS conditions (absent, normal, modSS). Outcomes included peak pulling force, back muscle EMG, RPE and subjective reports of low-back discomfort and preference. RESULTS: ModSS use was as effective as or better than normal SS use at reducing back muscle EMG, pulling force, RPE and perceived discomfort in all 9 conditions, when compared to no SS ( p< 0.05). The relationship between RPE and EMG was moderately strong (r = 0.75). CONCLUSION: ModSS use may reduce caregiver injury rates, as it reduces biomechanical and perceived demands associated with lateral patient-handling tasks at least as well as normal SS use, if not better.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"12 1","pages":"151-163"},"PeriodicalIF":0.0,"publicationDate":"2016-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-160233","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70148653","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}

引用次数: 7

Perceived success factors of participatory ergonomics in ship design 参与式人机工程学在船舶设计中的感知成功因素

Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety Pub Date : 2016-03-09 DOI: 10.3233/OER-150230

N. Costa, L. D. Vries, J. Dahlman, S. MacKinnon

{"title":"Perceived success factors of participatory ergonomics in ship design","authors":"N. Costa, L. D. Vries, J. Dahlman, S. MacKinnon","doi":"10.3233/OER-150230","DOIUrl":"https://doi.org/10.3233/OER-150230","url":null,"abstract":"BACKGROUND: The more complex and perilous a sociotechnical system is, the more crucial it is to have users and other relevant stakeholder groups in focus throughout its design lifecycle. In the design and development of ships and ship systems, there has been resistance towards the integration of ergonomic principles through a human-centred approach as well as to involving the user. This inattention can result in an inadequate design, which may have negative repercussions on usability, ultimately threatening the safety of onboard operations, overall system performance and the well-being of the crew. \u0000OBJECTIVE: This study explores the perceived success factors of participatory ergonomics based on the standpoint of young seafarers. \u0000METHODS: Such is achieved by examining a focus group with cadets inspired by Grounded Theory approach. \u0000RESULTS: The findings reveal user participation as a designer’s essential contact with reality, provided that a set of pre-conditions that supports the success of participatory ergonomics can be fulfilled: involving the right users and filling in the gap between end-user needs and ship-owner requirements. The consequent success factors are described at a usability level, an intrinsic level for the end-users, and ultimately at the level of increased safety and efficiency. \u0000CONCLUSIONS: User input may not only affect design as an outcome, it may also influence the way participatory ergonomics is performed in the maritime sector.","PeriodicalId":91780,"journal":{"name":"Occupational ergonomics : the journal of the International Society for Occupational Ergonomics and Safety","volume":"12 1","pages":"141-150"},"PeriodicalIF":0.0,"publicationDate":"2016-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/OER-150230","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70148903","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}

引用次数: 0