Applied Ergonomics最新文献_第3页

Nonlinear analysis reveals duration and gradient-dependent disruption of load carriage gait variability during an outdoor 6.72 km time trial in military personnel 非线性分析揭示了军事人员在户外6.72公里计时赛中负重步态变异性的持续时间和梯度依赖性中断

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-09-10 DOI: 10.1016/j.apergo.2025.104639

Evan D. Feigel , Ayden McCarthy , Joel T. Fuller , Lily Rosenblum , Mita Lovalekar , Tommi Ojanen , Kai Pihlainen , Brian J. Martin , Kristen J. Koltun , Tim L.A. Doyle , Bradley C. Nindl

{"title":"Nonlinear analysis reveals duration and gradient-dependent disruption of load carriage gait variability during an outdoor 6.72 km time trial in military personnel","authors":"Evan D. Feigel , Ayden McCarthy , Joel T. Fuller , Lily Rosenblum , Mita Lovalekar , Tommi Ojanen , Kai Pihlainen , Brian J. Martin , Kristen J. Koltun , Tim L.A. Doyle , Bradley C. Nindl","doi":"10.1016/j.apergo.2025.104639","DOIUrl":"10.1016/j.apergo.2025.104639","url":null,"abstract":"<div><div>This investigation assessed the effect of gradient and duration on the gait variability exponent, DFA-α, in military personnel affixed with dual inertial measurement units performing a load carriage time-trial. Gait data (N = 14) were partitioned into 256 stride time segments by gradient (uphill, downhill) using a gait event algorithm. Detrended fluctuation analysis calculated DFA-α per segment, which was averaged across one-third durations (phases 1–3) per gradient. Two-way repeated measures ANOVA examined effects of gradient, duration, and interaction on DFA-α, with Bonferroni-adjusted post-hoc comparisons. There was a significant main effect of duration (phase 1: 0.593 ± 0.021; phase 2: 0.563 ± 0.031; phase 3: 0.493 ± 0.021; F = 3.833, p = 0.035, η<sub>p</sub><sup>2</sup> = 0.228), but not gradient (uphill: 0.486 ± 0.031; downhill: 0.614 ± 0.035; F = 4.252, p = 0.060, η<sub>p</sub><sup>2</sup> = 0.246), or interaction (F = 0.019, p = 0.981, η<sub>p</sub><sup>2</sup> = 0.001). Pairwise comparisons revealed significantly lower DFA-α during phase 3 than phase 1 (p = 0.016). Elapsed duration and uphill gradient, despite a large, but non-significant effect, may represent factors altering gait variability for injury risk.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104639"},"PeriodicalIF":3.4,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027333","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

COVID-19 vaccination systems: Human Factors at the ‘sharp end’ COVID-19疫苗接种系统：处于“尖端”的人为因素

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-09-08 DOI: 10.1016/j.apergo.2025.104588

Janette Edmonds , Sue Hignett , Helen Vosper , Hugh Currie , Paul Bowie

{"title":"COVID-19 vaccination systems: Human Factors at the ‘sharp end’","authors":"Janette Edmonds , Sue Hignett , Helen Vosper , Hugh Currie , Paul Bowie","doi":"10.1016/j.apergo.2025.104588","DOIUrl":"10.1016/j.apergo.2025.104588","url":null,"abstract":"<div><h3>Purpose</h3><div>To share key learnings from the assessment of a COVID-19 vaccination system in Scotland using a Human Reliability Analysis (HRA) approach.</div></div><div><h3>Method</h3><div>Project data were collected in February 2021 in NHS Ayrshire and Arran (NHSAA) – the regional health authority - using document analysis (Service Delivery Manual, 2020), observations (2 site visits), and workshops (n = 8, with 26 participants). The Systematic Human Error Reduction and Prediction Approach (SHERPA) is a framework for human reliability analysis that can be used as part of a safety assessment or safety case to determine whether the system is ‘safe enough’ and provide recommendations to improve safety by mitigating error potential. In this paper it was used to assess the service delivery system and make recommendations.</div></div><div><h3>Results</h3><div>Many recovery mechanisms and risk control measures had already been implemented by NHSAA. Eighteen issues required additional risk control, grouped into three themes.<ul><li><span>1.</span><span><div>Improve staff training and awareness, and the management of expectations.</div></span></li><li><span>2.</span><span><div>Improve equipment and information provision.</div></span></li><li><span>3.</span><span><div>Implement additional checks and contingencies.</div></span></li></ul></div><div><ul><li><span>1.</span><span><div>Improve staff training and awareness, and the management of expectations.</div></span></li><li><span>2.</span><span><div>Improve equipment and information provision.</div></span></li><li><span>3.</span><span><div>Implement additional checks and contingencies.</div></span></li></ul></div></div><div><h3>Conclusion</h3><div>The findings were used to improve the current service delivery and provide guidance for the safe design and delivery of future rollouts of time-critical public health vaccination programmes.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104588"},"PeriodicalIF":3.4,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020411","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

VR- or lecture-based training? The role of culture in safety training outcomes 基于VR还是基于讲座的培训？文化在安全培训结果中的作用

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-09-01 DOI: 10.1016/j.apergo.2025.104626

Estefany Rey-Becerra , Lope H. Barrero , Rolf Ellegast , Annette Kluge

{"title":"VR- or lecture-based training? The role of culture in safety training outcomes","authors":"Estefany Rey-Becerra , Lope H. Barrero , Rolf Ellegast , Annette Kluge","doi":"10.1016/j.apergo.2025.104626","DOIUrl":"10.1016/j.apergo.2025.104626","url":null,"abstract":"<div><div>Virtual reality (VR) training provides immersive, risk-free experiences that leverage multisensory integration to improve memory retention, presence and embodiment to strengthen engagement and attention, and situational learning to promote transfer of training to real-world contexts. Adding gamification through serious games (SG) further enhances engagement and active learning. This study validates a VR-SG safety training previously evaluated in Colombia, now applied to 74 professional roofers in Germany comparing ViStra (VR-SG) with LeStra (lecture-based with problem-based learning). Using Kirkpatrick's model, we assessed reaction, cognitive and attitudinal outcomes, self-reported behavior, and safety climate through validated questionnaires. Both programs improved cognitive and attitudinal outcomes, with no significant differences. No effects were found for behavior or safety climate. Thus, ViStra matched LeStra's effectiveness. Post hoc comparison with Colombian data suggests cultural factors influence some outcomes, highlighting the importance of adapting training strategies to cultural contexts for future safety training strategies in diverse work environments.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104626"},"PeriodicalIF":3.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922619","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

Evaluating train drivers’ performance to inform the development of automatic train operation 评估列车驾驶员的工作表现，为列车自动运行的发展提供信息

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-08-27 DOI: 10.1016/j.apergo.2025.104622

Baris Cogan , Esther Bosch , Birte Thomas-Friedrich , Helena Wasle , David Schackmann , Christian Klotz , Birgit Milius

引用次数: 0

Exploring the relationship between severity of patient illness and in room primary care nursing time in a medical intensive care unit 探讨重症监护室患者病情严重程度与室内初级护理时间之间的关系

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-08-23 DOI: 10.1016/j.apergo.2025.104627

Jung Hyup Kim , Wenbin Guo , Will Mastrantuono , Kangwon Seo

{"title":"Exploring the relationship between severity of patient illness and in room primary care nursing time in a medical intensive care unit","authors":"Jung Hyup Kim , Wenbin Guo , Will Mastrantuono , Kangwon Seo","doi":"10.1016/j.apergo.2025.104627","DOIUrl":"10.1016/j.apergo.2025.104627","url":null,"abstract":"<div><div>This study explores a connection between sequential organ failure assessment (SOFA) of patients in a medical intensive care unit (ICU) and primary care nursing time. Although ICU nurses have many responsibilities that impact patient outcomes, little is known about how the severity of a patient's illness influences the time and activities that nurses dedicate to primary care within a medical ICU. Data collection was set for February to April 2020, as suspended on March 11 due to COVID-19. It resumed on July 6, 2020, after clinical research activities were reinstated. We collected data for a time-motion study. We combined the manual observation data with the real-time location data of a Near Field Electromagnetic Ranging (NFER) system to analyze how time is structured in primary care. Our goal was to investigate the impact of a patient's illness severity on how time is allocated in intensive care nursing. Overall, there was no significant difference between February and July in terms of time spent on primary care and peer support activities. However, for specific primary-care tasks, ICU nurses spent less time on patient assessment, patient care, and medication tasks compared to February, significantly more time on patient transport in July. In the February data, we found a significant correlation between the SOFA score and the time devoted to primary care, indicating a meaningful association between patient illness severity and the allocation of nursing time. However, in the July data, no correlation was found between the SOFA score and the time spent on primary care. These findings improve our understanding of the challenges that nurses experience in medical ICU units, emphasizing the necessary adjustments to enhance nursing care.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"129 ","pages":"Article 104627"},"PeriodicalIF":3.4,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144889605","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

Wearable weight distribution devices for reducing injury risk: How varying amounts of body armor offloading affect biomechanics and comfort 减少受伤风险的可穿戴重量分配装置：不同数量的防弹衣卸载如何影响生物力学和舒适度

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-08-23 DOI: 10.1016/j.apergo.2025.104613

Paul R. Slaughter, Karl E. Zelik

引用次数: 0

Simulation-based biomechanical assessment of a passive back support exoskeleton: Comparison of various support levels during a sustained forward bending task 基于模拟的被动背部支撑外骨骼的生物力学评估：在持续向前弯曲任务中各种支持水平的比较

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-08-22 DOI: 10.1016/j.apergo.2025.104620

Mina Salehi , Jangho Park , Divya Srinivasan , Jeong Ho Kim

{"title":"Simulation-based biomechanical assessment of a passive back support exoskeleton: Comparison of various support levels during a sustained forward bending task","authors":"Mina Salehi , Jangho Park , Divya Srinivasan , Jeong Ho Kim","doi":"10.1016/j.apergo.2025.104620","DOIUrl":"10.1016/j.apergo.2025.104620","url":null,"abstract":"<div><div>This study evaluated the impacts of five support levels (40, 55, 70, 85, and 100 % actuator strengths) of a passive back-support exoskeleton (BSE) on biomechanical loads associated with commercial crab sorting through musculoskeletal simulation. Whole-body kinematics of 20 male participants performing simulated crab sorting were collected and integrated into a human-BSE interaction simulation framework to predict muscle activity, spinal loads, and contact forces at the human-BSE interfaces. Increasing the BSE support level generally reduced trunk extensor muscle activity (up to 28.6 %) and lumbosacral reaction forces (up to 30.7 %). However, the reduced biomechanical load came at the expense of increased contact forces on the chest and thigh areas, potentially causing local discomfort for vulnerable users. These findings suggest that while BSEs can be effective in reducing low back biomechanical loads during crab sorting, support levels should be carefully selected to ensure adequate assistance while minimizing potential side effects, such as local discomfort or pain.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"129 ","pages":"Article 104620"},"PeriodicalIF":3.4,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887456","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

Usability and postural benefits of passive back-support exoskeletons in vascular surgery: A preliminary study 被动背支撑外骨骼在血管手术中的可用性和姿势益处：初步研究

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-08-21 DOI: 10.1016/j.apergo.2025.104624

Tianke Wang , Hamid Norasi , Joseph Y. Kim , Surabhi Joshi , Bernardo C. Mendes , Randall DeMartino , Fahad Shuja , M. Susan Hallbeck , Emmanuel Tetteh

{"title":"Usability and postural benefits of passive back-support exoskeletons in vascular surgery: A preliminary study","authors":"Tianke Wang , Hamid Norasi , Joseph Y. Kim , Surabhi Joshi , Bernardo C. Mendes , Randall DeMartino , Fahad Shuja , M. Susan Hallbeck , Emmanuel Tetteh","doi":"10.1016/j.apergo.2025.104624","DOIUrl":"10.1016/j.apergo.2025.104624","url":null,"abstract":"<div><div>The awkward trunk postures such as static flexion and twisting required of surgeons in the operating room are a major contributing factor to the high prevalence of work-related musculoskeletal disorders amongst surgeons. One intervention that is currently proposed to reduce the strain associated with awkward intraoperative postures are passive exoskeletons worn intraoperatively. In this study, we measured the intraoperative postures, subjective discomfort, and workload as well as the usability associated with two commercially available exoskeletons during three types of vascular surgery and compared the results between a baseline (not using exoskeleton) and two different trunk exoskeletons (Laevo and HeroWear). A linear mixed model found that while the exoskeletons did not significantly interfere with surgical workflow, use of the exoskeletons did not significantly affect intraoperative trunk postures (28° vs. 27° vs. 34°, p > .05), subjective discomfort change (2.0 vs. 1.25 vs. 1.92, p = .807 in the low back) (3.00 vs. 1.58 vs. 2.58, p = .454 in the upper back), and (3.00 vs. 2.75 vs. 1.92, 0.153 overall fatigue change), or workload in vascular surgeons. Further research on the effectiveness of exoskeletons in vascular surgeons in reducing discomfort and ergonomic risk factors is recommended.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"129 ","pages":"Article 104624"},"PeriodicalIF":3.4,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880053","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

Comparison of flexion and extension moments from passive low-back exoskeletons as a function of angular velocity 被动下背外骨骼屈伸力矩与角速度函数的比较

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-08-20 DOI: 10.1016/j.apergo.2025.104623

Jarrod A. Smith , Shahram R. Heravi , Ryan Porto , Joel A. Cort

{"title":"Comparison of flexion and extension moments from passive low-back exoskeletons as a function of angular velocity","authors":"Jarrod A. Smith , Shahram R. Heravi , Ryan Porto , Joel A. Cort","doi":"10.1016/j.apergo.2025.104623","DOIUrl":"10.1016/j.apergo.2025.104623","url":null,"abstract":"<div><div>Pain or injury to the low back are prevalent among individuals engaged in physically demanding occupations or tasks involving repetitive manual material handling, resulting in significant personal and societal burdens. Exoskeletons have emerged as a promising technology to mitigate the risk of injuries by providing mechanical support and reducing the physical demand on the body. Exoskeleton providers provide minimal information related to the support capability of their product, as many do not publish these magnitudes. Further, it is currently unclear whether these device's behaviors change under varying work demands (e.g., movement velocity). This study aimed to assess the effects of exoskeleton activation levels and angular velocity on sagittal plane moment outputs from the SuitX-backX and Laevo-V2.5. For data collection, we installed exoskeletons on a dynamometer and loaded them in a full range of motion with five different loading rates (5, 10, 20, 30, 45, and 60 deg/sec). We used Statistical Parametric Mapping Two-Way ANOVAs to compare between activation level (high/low) and angular velocities. Results revealed significant differences between activation levels and angular velocities for both models. This study aimed to measure moment outputs from the SuitX-backX and Laevo-V2.5 to determine if differences existed between exoskeleton activation levels and angular velocity to inform task-specific exoskeleton selection for occupational applications.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"129 ","pages":"Article 104623"},"PeriodicalIF":3.4,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864599","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

Is conditionally automated driving a bad idea? Observations from an on-road study in automated vehicles with multiple levels of driving automation 有条件自动驾驶是个坏主意吗？对具有多级驾驶自动化的自动驾驶车辆进行的道路研究观察结果

IF 3.4 2区工程技术

Applied Ergonomics Pub Date : 2025-08-19 DOI: 10.1016/j.apergo.2025.104617

Soyeon Kim , Fjollë Novakazi , I.C. MariAnne Karlsson

{"title":"Is conditionally automated driving a bad idea? Observations from an on-road study in automated vehicles with multiple levels of driving automation","authors":"Soyeon Kim , Fjollë Novakazi , I.C. MariAnne Karlsson","doi":"10.1016/j.apergo.2025.104617","DOIUrl":"10.1016/j.apergo.2025.104617","url":null,"abstract":"<div><div>With the increasing adoption of driving automation technologies, vehicles equipped with SAE Level 3 driving automation are becoming available on the market. This study explores drivers’ behaviour when driving conditionally automated vehicles on-road, providing multiple levels of driving automation. Sixteen participants drove a Wizard-of-Oz vehicle offering several levels of automation (Manual, SAE Level 2 and Level 3) on a public highway. Data was collected during driving sessions (observations and think-aloud) and post-driving sessions (in-depth interviews). The results indicate that drivers show errors in mode transitions and mode awareness. These errors include unintended deactivation of Level 2 driving automation, confusion about driving modes after disengaging Level 3 driving automation, and confusion about the current driving mode. These findings highlight a fundamental limitation in the design of automation systems when humans are required to operate multiple modes within a single system, making it challenging to distinguish between them clearly. This ambiguity and lack of understanding affected how drivers interacted with, interpreted, and responded to the automated vehicle. The study provides insights for designing automated vehicles with multiple levels of driving automation, aiming to improve mode awareness and overall safety.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"129 ","pages":"Article 104617"},"PeriodicalIF":3.4,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864598","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