International Journal of Industrial Ergonomics最新文献

Ergonomic design of mastectomy bra based on emotion measurements 基于情绪测量的乳房切除胸罩人体工学设计

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-11-01 DOI: 10.1016/j.ergon.2024.103659

{"title":"Ergonomic design of mastectomy bra based on emotion measurements","authors":"","doi":"10.1016/j.ergon.2024.103659","DOIUrl":"10.1016/j.ergon.2024.103659","url":null,"abstract":"<div><div>The mastectomy bra (M-bra) serves as an essential rehabilitative product for individuals who have undergone breast cancer surgery. This study aimed to develop an ergonomic design method for M-bras that addresses both the physiological and psychological needs of post-mastectomy breast cancer patients. Over 270 M-bras with diverse design options were collected from online markets, and more than 100 post-mastectomy patients participated in an online survey to rank their preferences regarding eight M-bra components and 19 design options. An orthogonal experimental design was applied to reduce the vast array of design combinations to 20 M-bra test samples. The Pleasure-Arousal-Dominance (PAD) emotion model and the Self-Assessment Manikin (SAM) scale were then used to collect PAD scores from 40 patients evaluating these test samples. Extreme difference analysis was conducted to evaluate the significance of the M-bra components and identify combinations that generated the highest and lowest PAD levels. Based on the PAD scores, 11 samples were categorized as \"delighted\" or \"relaxed\" M-bras due to their positive emotional polarity. Linear regression analysis showed strong correlations between the design options and PAD scores, with R<sup>2</sup> values of 0.962 for P, 0.819 for A, and 0.949 for D. A backpropagation neural network was developed to predict PAD values for various M-bra design options, achieving prediction errors of 8.06% for P, 6.15% for A, and 13.29% for D, demonstrating satisfactory performance given the subjective nature of the evaluations.</div></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sedentary behavior and musculoskeletal symptoms among work from home employees 在家工作员工的久坐行为和肌肉骨骼症状

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-11-01 DOI: 10.1016/j.ergon.2024.103653

{"title":"Sedentary behavior and musculoskeletal symptoms among work from home employees","authors":"","doi":"10.1016/j.ergon.2024.103653","DOIUrl":"10.1016/j.ergon.2024.103653","url":null,"abstract":"<div><div>Work from home (WFH) may result in less physical activity and more sedentary behaviour among office employees. The consequence to body pain is unknown. The aim of this study was to assess longitudinal sedentary behaviour change and pain association among office workers who have been working from home. Baseline survey was administered to a cohort of office employees in January–February 2020. In March, all employees started to work from home in response to the COVID-19 pandemic. The additional surveys took place in April, June, and December 2020. The survey consisted of IPAQ, which included sitting time report, along with self-reported proportion of time spent standing during work, and body pain. Generalized estimating equations were used to analyse the trends in pain scores, and their associations to sitting time and standing frequency. The cohort consisted of 143 participants at baseline. Participants reported lower pain scores for neck (risk ratio = 0.90, CI = 0.82–0.99) and back (risk ratio = 0.85, CI = 0.75–0.96) in December, compared with pain scores at baseline. Neck pain among participants with more standing was lower than those with infrequent standing (risk ratio = 0.87, CI = 0.79–0.96). Weekly sitting time had no statistically significant effect on body pain scores. For WFH employees, more standing appears to have a significant protective effect on the neck. Being more sedentary during work does not have a clear detrimental effect on long-term musculoskeletal health.</div></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the link between occupational risk factors, work-related musculoskeletal disorders and quality of work life: An analysis using PLS-SEM 评估职业风险因素、与工作有关的肌肉骨骼疾病和工作生活质量之间的联系：使用 PLS-SEM 进行分析

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-11-01 DOI: 10.1016/j.ergon.2024.103658

{"title":"Assessing the link between occupational risk factors, work-related musculoskeletal disorders and quality of work life: An analysis using PLS-SEM","authors":"","doi":"10.1016/j.ergon.2024.103658","DOIUrl":"10.1016/j.ergon.2024.103658","url":null,"abstract":"<div><div>This article aimed to test the hypotheses of a complex model considering the chain relationship between occupational risk factors, work-related musculoskeletal disorders (WMSDs) symptoms, and Quality of Work Life (QWL) perceived by workers. We assessed psychosocial risk factors utilizing items from the Job Content Questionnaire, the Effort-Reward Imbalance Questionnaire, and the Copenhagen Psychosocial Questionnaire II. The biomechanical factors analyzed included poor trunk and upper limb postures, excessive lifting, and prolonged standing. Organizational factors evaluated were monotonous work, tight deadlines, and low stimulation for teamwork. Using the Nordic and Walton Questionnaires, we assessed workers’ perceptions of WMSD symptoms and QWL. We constructed the model using the Partial Least Squares Structural Equation Modeling (PLS-SEM) approach. The measurement model assessed reliability (composite reliability) and validity tests (average variance extracted, Heterotrait-Monotrait ratio of correlations method, and Fornell-Larcker criterion). The structural model analyzed direct and indirect paths between factors and tested the hypotheses (bootstrapping method). Results indicate that most biomechanical factors affect WMSDs mediated by physical work demands. Physical work demands have a direct impact on WMSDs and stress. Good psychosocial conditions alleviate stress, reduce WMSD symptoms, and increase QWL. Harmful organizational factors acted indirectly on WRMSDs, amplifying stress perception. Finally, WMSDs worsen QWL. We concluded that the model is valid with satisfactory psychometrics for measuring and relating risk factors, WMSDs, and QWL, providing insights that can guide professionals and researchers in planning and implementing actions to prevent risks and WMSD symptoms and improve QWL.</div></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-10-21 DOI: 10.1016/j.ergon.2024.103656

{"title":"Research on similarity bias in dual objective visual search based on nuclear power human-machine interface icons","authors":"","doi":"10.1016/j.ergon.2024.103656","DOIUrl":"10.1016/j.ergon.2024.103656","url":null,"abstract":"<div><div>Using icons from nuclear power interface as the research object, this study explored how icon similarity affected the performance of dual objective visual search. Firstly, the process of generating similarity bias was described from the perspective of human cognitive processing. The feature attributes of nuclear power icons were extracted, and then associated and mapped with similarity bias attributes. Secondly, a total of 16 instruction icons, device icons, and component icons were selected to propose icon coding logic for different similarity dimensions, and similarity experimental materials were designed. Finally, a dual objective search experiment with a 4 × 4 matrix was conducted to explore the impact of graph similarity on search performance and to determine the priority of perceptual similarity, semantic similarity, and memory similarity. High-level (H) similarity between the two targets resulted in superior visual search performance (p = 0.01 between the response times of similarity high and medium/low). Improving experiential familiarity enhanced search performance in cases of low-level (L) (p = 0.021) and medium-level (M) (p ≤ 0.009) icon similarity, but had no significant impact on search performance in cases of high-level (H) similarity (p ≥ 0.269). Compared to semantic similarity, enhancing perceptual similarity was more likely to improve search performance(p = 0.024).</div></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The impact of camera-monitor system viewing angles on drivers’ distance perception: A simulated driving study 摄像监控系统视角对驾驶员距离感的影响：模拟驾驶研究

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-10-19 DOI: 10.1016/j.ergon.2024.103657

{"title":"The impact of camera-monitor system viewing angles on drivers’ distance perception: A simulated driving study","authors":"","doi":"10.1016/j.ergon.2024.103657","DOIUrl":"10.1016/j.ergon.2024.103657","url":null,"abstract":"<div><div>Camera-monitor systems (CMS) are increasingly used in driving. CMS separates the driver's sight line from the camera view, due to the lack of mirror reflection, only changing the camera's visual axis angle may affect the driver's rear view perception. While previous research has explored camera height and field of view, the effects of horizontal and vertical viewing angles alone remain unclear. This study aimed to evaluate how the horizontal viewing angle and vertical viewing angle of CMS camera affect distance estimation and car-following tasks. By changing the horizontal and vertical viewing angle, different self-vehicle references and horizon positions were formed in the image. Two experiments were conducted with the CMS around the steering wheel (Experiment 1) and at the bottom of the A-pillar (Experiment 2). Independent variables were the horizontal viewing angle (reference scale: 1/4, 1/3, 1/2) and vertical viewing angle (horizon position: 1/2, 1/3). Dependent variables included distance estimation error ratio and following distance. Experiment 1 demonstrated a significant interaction effect: a smaller reference scale and higher horizon position reduced distance underestimation. Additionally, a smaller reference scale for the participants' self-vehicle resulted in shorter following distances. In Experiment 2, the distance estimation outcomes on the left display aligned with those of Experiment 1; however, the influence of the viewing angle was diminished on the right display. The study suggests CMS design should balance vehicle reference inclusion with environmental cues, enhancing distance perception and driving safety. The consistency between CMS design and driver familiarity also needs to be considered.</div></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of passive shoulder-support exoskeleton entity and support force on user range of motion under external loads 被动肩部支撑外骨骼实体和支撑力对使用者在外部负荷下活动范围的影响

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-10-13 DOI: 10.1016/j.ergon.2024.103655

{"title":"Effects of passive shoulder-support exoskeleton entity and support force on user range of motion under external loads","authors":"","doi":"10.1016/j.ergon.2024.103655","DOIUrl":"10.1016/j.ergon.2024.103655","url":null,"abstract":"<div><div>This study investigates the effects of a passive shoulder-support exoskeleton entity and support force on the range of motion (ROM) of the shoulder and trunk. Twenty-six healthy participants underwent ROM assessments across three exoskeleton setting conditions (without the exoskeleton; wearing the exoskeleton but the support force deactivated; wearing the exoskeleton with the support force activated) and three external load conditions (0 kg, 3 kg, and 6 kg). Results show that while the exoskeleton entity constrained the shoulder ROM (vertical abduction/adduction, flexion/extension, and horizontal abduction/adduction) and trunk ROM (lateral flexion and rotation), the support force partially alleviated this constraint. External loads primarily restricted the mobility of the shoulder but not the trunk. Interaction effects revealed the complex interplay between external loads and exoskeleton settings on ROM and perceived difficulty, particularly in shoulder vertical abduction/adduction. This study underscores the necessity of considering exoskeleton entity, support force, and external loads in optimizing user joint mobility.</div><div>The industrial exoskeleton represents a promising solution for enhancing workplace safety and productivity by mitigating work-related musculoskeletal disorders. This study assessed the impact of the exoskeleton's entity and support force on joint mobility across different load scenarios. Joint mobility is critical to perform industrial tasks that require high flexibility and agility.</div></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancing healthcare equity through human factors engineering 通过人因工程促进医疗公平

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-10-13 DOI: 10.1016/j.ergon.2024.103654

引用次数: 0

Shoulder-assist exoskeleton effects on balance and muscle activity during a block-laying task on a simulated mast climber 肩部辅助外骨骼对在模拟桅杆攀爬器上完成铺块任务时的平衡和肌肉活动的影响

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-10-02 DOI: 10.1016/j.ergon.2024.103652

{"title":"Shoulder-assist exoskeleton effects on balance and muscle activity during a block-laying task on a simulated mast climber","authors":"","doi":"10.1016/j.ergon.2024.103652","DOIUrl":"10.1016/j.ergon.2024.103652","url":null,"abstract":"<div><div>Interest in utilizing exoskeletons to mitigate the risks of musculoskeletal disorders (MSDs) among construction workers is growing, spurred by encouraging results in other industries. However, it is crucial to carefully examine their impact on workers' stability and balance before implementation. In this study, seven male participants lifted a 35-lb cinder block from a production table to a simulated wall at two heights—elbow and shoulder levels—using three different exoskeleton models on an unstable platform, where their balance and shoulder muscle activity were assessed. Balance-related parameters, included mean distance (MDIST), total excursion (EXCUR), and mean velocity (VEL) of the center of pressure, were derived from force plate data. Muscle activity in six shoulder and upper arm muscles was estimated using electromyography (EMG) data. The results indicated that wearing two of the exoskeletons significantly increased both total and medio-lateral (ML) MDIST compared to not wearing an exoskeleton. Wearing one of the exoskeletons significantly increased total and ML VEL and ML EXCUR. Although lifting level did not have a significant impact on the balance parameters, it did affect the muscle activity in most of the measured muscles. Moreover, only one exoskeleton significantly reduced the activity in a particular shoulder muscle compared to no exoskeleton use. In conclusion, the evaluated shoulder-assist exoskeletons showed limited benefits for preventing upper extremity MSDs and may negatively affect whole-body balance during a block-laying task on an unstable platform. These findings underscore the importance of comprehensive evaluations of balance and effectiveness prior to adopting exoskeletons in construction.</div></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing E-bike controls for human-bike interaction to enhance riding experience and efficiency 优化电动自行车控制，实现人车互动，提升骑行体验和效率

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-09-28 DOI: 10.1016/j.ergon.2024.103651

{"title":"Optimizing E-bike controls for human-bike interaction to enhance riding experience and efficiency","authors":"","doi":"10.1016/j.ergon.2024.103651","DOIUrl":"10.1016/j.ergon.2024.103651","url":null,"abstract":"<div><div>E-bikes are now used for sports, rehabilitation, and work, not just commuting. Riders adjust power assistance and transmission to handle different conditions and reach their desired physical load. This interaction between the rider, bike, and environment can become complex due to faster speeds, shorter response times, and varying conditions, potentially leading to discomfort. A study with 21 non-athletes explored how riders manage the physical load on e-bikes during a simulated indoor riding session with 66 stages of varying slope resistance. Participants controlled the e-bike to maintain a moderate intensity, and data on latency of e-bike control, number of controls, acceptable pedaling power, heart rate, and perceived exertion were collected. On average, riders made their control adjustment 5.3 s after a slope change and used 2.7 control attempts to reach an acceptable pedaling power. The study found that the most acceptable pedaling power were similar across different slopes, suggesting a consistent preferred load. Participants aimed to maintain stable pedaling power despite external disturbances, targeting a moderate exercise intensity (66.9% maximal heart rate and a rate of perceived exertion of 12.1). The findings indicate that it's possible to estimate a personal preferred load, which could inform future studies on maintaining this load and improving the e-bike riding experience in participatory ergonomics.</div></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of mild hypoxia on pilots’ performance and physiological response: A systematic review and experimental study 轻度缺氧对飞行员表现和生理反应的影响：系统回顾和实验研究

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-09-24 DOI: 10.1016/j.ergon.2024.103650

{"title":"Impact of mild hypoxia on pilots’ performance and physiological response: A systematic review and experimental study","authors":"","doi":"10.1016/j.ergon.2024.103650","DOIUrl":"10.1016/j.ergon.2024.103650","url":null,"abstract":"<div><div>Mild hypoxia in aviation is a well-known phenomenon that affects flight safety, particularly in general aviation. Experimental research on its influence on performance and physiological response has been limited, often yielding contradictory results. This study aimed to deepen the understanding of mild hypoxia's effects on pilots' physiological responses and performance. A systematic review was conducted to synthesize existing knowledge and assess the consistency and generalizability of previous findings. Novel empirical data were then obtained through an experiment designed to focus on cardiac activity and performance under mild hypoxic conditions. Twelve male active military pilots participated in the experiment, which involved two simulated flights under controlled conditions. Unlike previous studies, which have varied significantly in methodology and outcomes, this study employed an approach to isolate the effects of mild hypoxia while simultaneously approximating real flight conditions by using a full flight simulator and a reduced oxygen breathing device. The experiment did not indicate significant performance degradation, while compensatory mechanisms in cardiac activity were observed, specifically in the form of increased heart rate and heart rate variability. These findings contribute to the existing body of knowledge by providing a more consistent methodological framework and highlighting the physiological adaptations to mild hypoxia, serving as a foundation for further investigation into the relationship between mild hypoxia, pilot performance, and physiological response.</div></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142314574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0