Valentina Bullo, Francesco Favro, Anna Mulasso, Alberto Rainoldi, Andrea Di Blasio, David Cruz-Diaz, Danilo Sales Bocalini, Stefano Gobbo, Marco Bergamin
{"title":"An Alternative Test to Evaluate the Assistance Provided by Back-Support Exoskeletons: A Pilot Study.","authors":"Valentina Bullo, Francesco Favro, Anna Mulasso, Alberto Rainoldi, Andrea Di Blasio, David Cruz-Diaz, Danilo Sales Bocalini, Stefano Gobbo, Marco Bergamin","doi":"10.1080/24725838.2026.2725733","DOIUrl":"https://doi.org/10.1080/24725838.2026.2725733","url":null,"abstract":"<p><p>OCCUPATIONAL APPLICATIONSThe test proposed in this study, assimilable to a maximal isometric mid-thigh pull, appears to detect the acute assistance provided by the exoskeleton, expressed as the difference in performance with and without donning the device; the test can be performed with minimal equipment and setup, ensuring that the test can be replicated widely by practitioners and employed in an occupational setting. These preliminary results point to the test being feasible; additionally, the exoskeleton was perceived as giving support and being moderately comfortable. Future research could further validate the test by comparing different models of back-support exoskeletons, passive or active, different populations, and repeating the test over multiple sessions.</p>","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"1-14"},"PeriodicalIF":1.8,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148992693","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":"Understanding Stress Levels in ICU Residents: The Role of Baseline Psychological State and Personal Characteristics.","authors":"Ilse Super, Linghan Zhang, Bijun Wang, Onur Asan","doi":"10.1080/24725838.2026.2722972","DOIUrl":"https://doi.org/10.1080/24725838.2026.2722972","url":null,"abstract":"<p><strong>Background: </strong>Intensive care unit (ICU) residents work in highly stressful environments characterized by clinical uncertainty and critically ill patients. During residency, physicians need to adapt to demanding workplace conditions while also navigating stressors related to their stage of life. How residents respond to stress depends on multiple personal and psychological factors, including coping mechanisms. Excessive stress may impair performance and negatively affect patient outcomes, underscoring the need to better understand its determinants.</p><p><strong>Purpose: </strong>This study aimed to identify baseline psychological factors and personal characteristics measured prior to ICU residency that influence stress levels across a three-week rotation.</p><p><strong>Methods: </strong>We analyzed a secondary dataset from 54 ICU residents during a three-week clinical rotation. Before the rotation, participants completed validated measures of stress, burnout, affect, depression, anxiety, personality traits, social support, and conflict. Stress was assessed twice daily across the rotation. Associations between baseline factors and stress trajectories were estimated using generalized estimating equations (GEE).</p><p><strong>Results: </strong>Compared with PGY-1 residents, PGY-2 and PGY-3 residents reported lower daily across the rotation. Higher trait anxiety and higher negative affect at baseline predicted higher stress, whereas higher agreeableness predicted lower stress, and higher conscientiousness predicted higher stress. Burnout due to exhaustion at baseline was counterintuitively associated with lower reported stress during the rotation. Other baseline factors, including burnout due to disengagement, depression, social support, and conflict, were not significantly associated with stress.</p><p><strong>Conclusions: </strong>Baseline psychological profiles meaningfully shape how residents experience stress during ICU rotations. Identifying these factors prior to clinical training may help target interventions to support residents at higher risk of stress, thereby enhancing both physician well-being and patient safety.</p>","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"1-11"},"PeriodicalIF":1.8,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148908055","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}
Vernnaliz Carrasquillo, Jawad Alami, Sara Lu Riggs
{"title":"Making the Case to Hire People with Cognitive Disabilities for Pick-and-Place Tasks: A Comparative Analysis with MODAPTS Standards.","authors":"Vernnaliz Carrasquillo, Jawad Alami, Sara Lu Riggs","doi":"10.1080/24725838.2026.2712366","DOIUrl":"https://doi.org/10.1080/24725838.2026.2712366","url":null,"abstract":"<p><p>OCCUPATIONAL APPLICATIONSA time-motion laboratory study was conducted to assess the performance of individuals with intellectual disabilities on a warehouse pick-and-place task. Over a five-week period, following an initial one-week training session, participant performance was tracked to evaluate improvement with practice. The data were then compared to predetermined time standards established by the Modular Arrangement of Predetermined Time Standards (MODAPTS). The findings indicate that with targeted training, these participants may be able to achieve a pace comparable to that of neurotypical workers. This research provides evidence that the successful integration and employment of individuals with intellectual disabilities can be expanded.</p>","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"1-9"},"PeriodicalIF":1.8,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148762701","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}
Jingkun Wang, Gaoyuan Tu, Peiran Liu, Haochen Feng, Nicholas Anton, Marian Obuseh, Dimitrios Stefanidis, Denny Yu
{"title":"A Methodological Approach to Assessing Closed-Loop Communication in the Operating Room.","authors":"Jingkun Wang, Gaoyuan Tu, Peiran Liu, Haochen Feng, Nicholas Anton, Marian Obuseh, Dimitrios Stefanidis, Denny Yu","doi":"10.1080/24725838.2026.2708823","DOIUrl":"https://doi.org/10.1080/24725838.2026.2708823","url":null,"abstract":"<p><p>OCCUPATIONAL APPLICATIONSClosed-loop communication (CLC) is widely used to support teamwork in high-risk settings; however, current approaches do not fully capture the complex and dynamic nature of communication in surgical practice. This study presents a practical method for coding and measuring CLC that better reflects real operating room interactions. The proposed approach captures both verbal and functionally equivalent non-verbal responses, as well as multi-party communication patterns. New breakdown and performance measures identify where coordination fails and quantify how reliably communication is completed across roles. For ergonomics and human factors practitioners, this approach provides systematic methods and metrics to assess teamwork quality in high-stakes environments. The method can be used to identify where coordination problems occur across different roles and support targeted communication training. These measures are also applicable to other high-stakes environments, such as aviation and emergency response, where reliable communication is essential for safety and performance.</p>","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"1-13"},"PeriodicalIF":1.8,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148708775","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}
Haozhi Chen, Peiran Liu, Haochen Feng, Jingkun Wang
{"title":"Model-Free Reinforcement Learning for Adaptive Hand Activity Ergonomics Risk Control.","authors":"Haozhi Chen, Peiran Liu, Haochen Feng, Jingkun Wang","doi":"10.1080/24725838.2026.2706446","DOIUrl":"https://doi.org/10.1080/24725838.2026.2706446","url":null,"abstract":"<p><p>OCCUPATIONAL APPLICATIONAdaptive decision-making systems can help balance productivity and ergonomic risk in repetitive manual tasks. This study demonstrates how data-driven control of work pace using reinforcement learning can reduce hand-wrist strain while maintaining output. Such systems could support real-time work-rest scheduling in manufacturing and help prevent work-related musculoskeletal disorders.</p>","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"1-10"},"PeriodicalIF":1.8,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148610665","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}
Kailin Cui, Jonathan Chiu, Pranav Meda, Gaojian Huang, Yue Luo
{"title":"Visual-Motor Coordination in Automated Driving: Effects of Temporal Urgency and Motor Demand on Intervention Behavior.","authors":"Kailin Cui, Jonathan Chiu, Pranav Meda, Gaojian Huang, Yue Luo","doi":"10.1080/24725838.2026.2690414","DOIUrl":"https://doi.org/10.1080/24725838.2026.2690414","url":null,"abstract":"<p><p>Occupational ApplicationsThis study shows that time-critical automation intervention requests increase drivers' visual-motor demands, reflected in measurable changes in driving performance and posture (i.e., limb engagement and trunk positioning) during transitions of control. These responses indicate that maneuver urgency and takeover timing can place elevated biomechanical and coordination demands on drivers, particularly in work-based automated driving. For ergonomics and human factors practice, the findings underscore the need to design automated transportation systems (e.g., ridesharing services) that align request timing with operators' physical and perceptual capabilities. In occupational settings such as automated shuttles and fleet-supervised vehicles, intervention requests should provide adequate preparation time for visual-motor coordination, limit concurrent steering and braking actions, and support stable trunk and lower-limb postures during control transitions. System designers and fleet operators should treat automated driving as a work system, integrating interface timing, alerts, and control transitions to support safe and sustainable on-the-road performance.</p>","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"1-14"},"PeriodicalIF":1.8,"publicationDate":"2026-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148521529","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}
Jennie A Jackson, Svend Erik Mathiassen, Alexis Descatha, Marc Fadel
{"title":"Does Job Rotation Lead to Changes in Physical Exposure and Health? A Systematic Review of Studies Reporting Objective Exposure Data.","authors":"Jennie A Jackson, Svend Erik Mathiassen, Alexis Descatha, Marc Fadel","doi":"10.1080/24725838.2025.2578449","DOIUrl":"10.1080/24725838.2025.2578449","url":null,"abstract":"<p><p>OCCUPATIONAL APPLICATIONSJob rotation is one of the most recommended and practiced organizational interventions for injury prevention and health promotion; however, insufficient evidence is currently available to assess the effectiveness of this work organization approach due to limitations in study design and physical exposure assessment metrics used in prior studies. Future studies are required in which research and company/organizational partners collaborate to evaluate job rotation interventions using relevant metrics including assessment of the impact of job rotation on variation across the full duration of the JR cycle and, subsequently, health. Recommendations are proposed to help guide future study designs and exposure assessment metric selection to support the generation of sufficient data for evidence synthesis.</p>","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"189-214"},"PeriodicalIF":1.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145745934","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}
Leon Straker, Svend Erik Mathiassen, Andreas Holtermann
{"title":"The Goldilocks Work Paradigm: Conception, Experience, Refinement, and Future.","authors":"Leon Straker, Svend Erik Mathiassen, Andreas Holtermann","doi":"10.1080/24725838.2025.2491483","DOIUrl":"10.1080/24725838.2025.2491483","url":null,"abstract":"","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"290-302"},"PeriodicalIF":1.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144032129","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":"Interpreting Workload Variation Using Fatigue-Recovery Modeling.","authors":"W P Neumann, M Yung, M A Greig, L M Rose","doi":"10.1080/24725838.2025.2584001","DOIUrl":"10.1080/24725838.2025.2584001","url":null,"abstract":"","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"320-329"},"PeriodicalIF":1.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145472020","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":"Trunk Postural Variability and its Association with Perceived Back Load and Pain in Surgical Staff.","authors":"Niels P Brouwer, Idsart Kingma, Jaap H van Dieën","doi":"10.1080/24725838.2025.2540964","DOIUrl":"10.1080/24725838.2025.2540964","url":null,"abstract":"<p><p>OCCUPATIONAL APPLICATIONSWe investigated the association between postural variability during a surgical procedure and both perceived back load and self-reported low-back pain history among surgical assistants. Postural variability was assessed using the standard deviations of lumbar flexion (directly related to trunk extensor muscle length) and trunk inclination (a predictor for back loading). Lumbar flexion variability showed a significantly negative correlation with both perceived back load during the measured procedure and perceived back load during the measured procedure relative to a typical procedure. However, neither of the variability measures yielded an association with low-back pain history. Although our study does not show an association between postural variability and low-back pain, it does suggest that variation in trunk extensor muscle length may reduce short-term perceived back load. Variation in lumbar flexion could be evoked on the work-floor by various types of interventions aimed at increasing postural variability.</p>","PeriodicalId":73332,"journal":{"name":"IISE transactions on occupational ergonomics and human factors","volume":" ","pages":"280-289"},"PeriodicalIF":1.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144801164","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}