Pub Date : 2026-01-01Epub Date: 2025-09-27DOI: 10.1016/j.apergo.2025.104649
Yuqian Wang , Ravindra S. Goonetilleke , Ray F. Lin , Ameersing Luximon , Yan Luximon
Human movement relies on visual and proprioceptive inputs, and the movement can be hampered when either input provides limited or distorted information, as in robotic surgery, virtual reality, or spaceflight. This study examines how proprioception influences performance in aimed movement tasks under restricted and inverted visual conditions. An experiment with 24 participants showed slower movements and increased information processing demands with incompatible visual feedback. The difference was diminished when the proprioceptive variability was controlled through ANCOVA. The findings allude to the necessity of considering individual differences in proprioceptive ability when evaluating performance across different visual conditions. These results can help develop training protocols and design interfaces when visual and proprioception sensory feedback are incompatible. Also, continuous visual feedback of hand movement may not be necessary. Instead, a correctly sized visual window of the target is sufficient for aimed movement tasks. This result has practical implications, especially when optimizing VR renders.
{"title":"Proprioception and vision relationship in aimed movement with restricted and reversed vision","authors":"Yuqian Wang , Ravindra S. Goonetilleke , Ray F. Lin , Ameersing Luximon , Yan Luximon","doi":"10.1016/j.apergo.2025.104649","DOIUrl":"10.1016/j.apergo.2025.104649","url":null,"abstract":"<div><div>Human movement relies on visual and proprioceptive inputs, and the movement can be hampered when either input provides limited or distorted information, as in robotic surgery, virtual reality, or spaceflight. This study examines how proprioception influences performance in aimed movement tasks under restricted and inverted visual conditions. An experiment with 24 participants showed slower movements and increased information processing demands with incompatible visual feedback. The difference was diminished when the proprioceptive variability was controlled through ANCOVA. The findings allude to the necessity of considering individual differences in proprioceptive ability when evaluating performance across different visual conditions. These results can help develop training protocols and design interfaces when visual and proprioception sensory feedback are incompatible. Also, continuous visual feedback of hand movement may not be necessary. Instead, a correctly sized visual window of the target is sufficient for aimed movement tasks. This result has practical implications, especially when optimizing VR renders.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104649"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158361","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}
Pub Date : 2026-01-01Epub Date: 2025-09-25DOI: 10.1016/j.apergo.2025.104650
Peter F. Renshaw, Mark W. Wiggins, Ben W. Morrison
This research was designed to examine the contribution of domain-specific cue utilization and self-reported experience to safety performance within the context of small Visual Line of Sight (VLOS) Remotely Piloted Aircraft (RPA) operations. The capacity to utilize and integrate domain-specific cues is potentially advantageous in operating aircraft where the range of sensory cues available is constrained. However, the impact of domain-specific cue utilization on safety performance has yet to be investigated in the context of RPA operations. Data were obtained from 48 remote pilots with a range of operational experience. The participants completed the VLOS RPA edition of EXPERTise 2.0, which provided an assessment of cue utilization. The participants also completed a survey of their experience of adverse RPA safety events. The results indicated that small VLOS RPA pilots with relatively higher levels of domain-specific cue utilization were less likely to be involved in adverse RPA safety events, independent of conventional and remote aviation flying experience. While higher levels of recent remote flying activity were advantageous for all remote pilots regardless of their level of cue utilization, higher levels of recency were associated with a disproportionate improvement in the safety performance of individuals with relatively lower levels of cue utilization. The outcomes have implications for both training and the assessment of pilot performance in RPA operations.
{"title":"A cue-based processing approach to differentiating levels of safety performance in remotely piloted aircraft operations","authors":"Peter F. Renshaw, Mark W. Wiggins, Ben W. Morrison","doi":"10.1016/j.apergo.2025.104650","DOIUrl":"10.1016/j.apergo.2025.104650","url":null,"abstract":"<div><div>This research was designed to examine the contribution of domain-specific cue utilization and self-reported experience to safety performance within the context of small Visual Line of Sight (VLOS) Remotely Piloted Aircraft (RPA) operations. The capacity to utilize and integrate domain-specific cues is potentially advantageous in operating aircraft where the range of sensory cues available is constrained. However, the impact of domain-specific cue utilization on safety performance has yet to be investigated in the context of RPA operations. Data were obtained from 48 remote pilots with a range of operational experience. The participants completed the VLOS RPA edition of EXPERTise 2.0, which provided an assessment of cue utilization. The participants also completed a survey of their experience of adverse RPA safety events. The results indicated that small VLOS RPA pilots with relatively higher levels of domain-specific cue utilization were less likely to be involved in adverse RPA safety events, independent of conventional and remote aviation flying experience. While higher levels of recent remote flying activity were advantageous for all remote pilots regardless of their level of cue utilization, higher levels of recency were associated with a disproportionate improvement in the safety performance of individuals with relatively lower levels of cue utilization. The outcomes have implications for both training and the assessment of pilot performance in RPA operations.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104650"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158359","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}
Pub Date : 2026-01-01Epub Date: 2025-10-04DOI: 10.1016/j.apergo.2025.104652
Chae Heon Lim , Hwanhun Lee , Doheon Kim , Min Chul Cha , Seul Chan Lee
Unintended positional drift (UPD) is an important factor during virtual reality (VR) use, as it may contribute to safety risks diminishing user experience, potentially hindering the broader adoption of VR technology. This study investigated the effects of locomotion and steering methods on UPD through a 2 × 2 within-subject experiment. We selected two locomotion methods (joystick and teleportation) and two steering methods (controller-based and physical-based). Thirty-two participants (16 males and 16 females; mean age = 22.65 years, SD = 2.06) completed a VR task under all four conditions. Joystick locomotion resulted in significantly greater movement variance (MV) compared to teleportation, leading to higher Y-axis MV per minute (MVY: p = .043) and significantly longer task completion time (TCT: p = .002). For subjective measures, joystick locomotion also produced higher body movement cognition (BMC) (p = .001) and greater postural stability questionnaire scores (PSQ) (p < .001). Compared to controller steering, physical steering resulted in significantly greater total movement (TM) and MV, including TMX, TMY, MVX, and MVY (all p < .001). Physical steering also led to higher BMC (p < .001), greater PSQ scores (p < .001), and increased virtual embodiment questionnaire (VEQ) scores—specifically for ownership (p = .002) and agency (p < .001). These findings suggest that the choice of locomotion and steering methods in VR should be carefully tailored to the intended application, with designers considering the trade-offs associated with UPD.
意外位置漂移(UPD)是虚拟现实(VR)使用过程中的一个重要因素,因为它可能会带来安全风险,降低用户体验,潜在地阻碍VR技术的广泛采用。本研究通过2 × 2受试者实验研究了运动和转向方法对UPD的影响。我们选择了两种移动方法(游戏邦注:即操纵杆和传送)和两种转向方法(基于控制器和基于物理)。32名参与者(16名男性和16名女性,平均年龄= 22.65岁,SD = 2.06)在所有四种条件下完成了VR任务。操纵杆移动导致的移动方差(MV)显著高于隐形移动,导致更高的y轴MV /分钟(MVY: p = 0.043)和更长的任务完成时间(TCT: p = 0.002)。对于主观测量,操纵杆运动也产生更高的身体运动认知(BMC) (p = .001)和更高的姿势稳定性问卷得分(PSQ) (p = .001)
{"title":"The effects of locomotion and steering methods in virtual reality on unintended positional drift","authors":"Chae Heon Lim , Hwanhun Lee , Doheon Kim , Min Chul Cha , Seul Chan Lee","doi":"10.1016/j.apergo.2025.104652","DOIUrl":"10.1016/j.apergo.2025.104652","url":null,"abstract":"<div><div>Unintended positional drift (UPD) is an important factor during virtual reality (VR) use, as it may contribute to safety risks diminishing user experience, potentially hindering the broader adoption of VR technology. This study investigated the effects of locomotion and steering methods on UPD through a 2 × 2 within-subject experiment. We selected two locomotion methods (joystick and teleportation) and two steering methods (controller-based and physical-based). Thirty-two participants (16 males and 16 females; mean age = 22.65 years, SD = 2.06) completed a VR task under all four conditions. Joystick locomotion resulted in significantly greater movement variance (MV) compared to teleportation, leading to higher Y-axis MV per minute (MVY: <em>p</em> = .043) and significantly longer task completion time (TCT: <em>p</em> = .002). For subjective measures, joystick locomotion also produced higher body movement cognition (BMC) (<em>p</em> = .001) and greater postural stability questionnaire scores (PSQ) (<em>p</em> < .001). Compared to controller steering, physical steering resulted in significantly greater total movement (TM) and MV, including TMX, TMY, MVX, and MVY (all <em>p</em> < .001). Physical steering also led to higher BMC (<em>p</em> < .001), greater PSQ scores (<em>p</em> < .001), and increased virtual embodiment questionnaire (VEQ) scores—specifically for ownership (<em>p</em> = .002) and agency (<em>p</em> < .001). These findings suggest that the choice of locomotion and steering methods in VR should be carefully tailored to the intended application, with designers considering the trade-offs associated with UPD.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104652"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145234290","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}
Pub Date : 2026-01-01Epub Date: 2025-10-06DOI: 10.1016/j.apergo.2025.104654
Junhee Choi , YeahNa Ryu , Jung Chan Lee , Saram Lee
This study evaluated COVID-19 home test kit usability focusing on effectiveness, efficiency, and satisfaction across diverse users and environments. Using a mixed-methods approach—including use analysis, user experience survey (n = 1045), and usability testing (n = 80) in South Korea—we identified a significant gap between high user satisfaction and actual performance. Despite positive satisfaction metrics (SUS score: 74.37 %), we observed concerns regarding effectiveness (29.9 % error rate) and efficiency (20 % unnecessary second kit use, 57.5 % repeated instruction references). The usability of home test kits was significantly influenced by age, education level, and prior experience, while the testing environment showed a less pronounced but still observable effect. Based on our findings, we propose design improvements to instructions, physical components of test kits, and instruction presentation. This research highlights the importance of usability in designing test kits that accommodate diverse populations, potentially improving public health outcomes and pandemic preparedness.
{"title":"A comprehensive mixed-methods usability evaluation of COVID-19 home test kits: focusing on effectiveness, efficiency, and satisfaction","authors":"Junhee Choi , YeahNa Ryu , Jung Chan Lee , Saram Lee","doi":"10.1016/j.apergo.2025.104654","DOIUrl":"10.1016/j.apergo.2025.104654","url":null,"abstract":"<div><div>This study evaluated COVID-19 home test kit usability focusing on effectiveness, efficiency, and satisfaction across diverse users and environments. Using a mixed-methods approach—including use analysis, user experience survey (n = 1045), and usability testing (n = 80) in South Korea—we identified a significant gap between high user satisfaction and actual performance. Despite positive satisfaction metrics (SUS score: 74.37 %), we observed concerns regarding effectiveness (29.9 % error rate) and efficiency (20 % unnecessary second kit use, 57.5 % repeated instruction references). The usability of home test kits was significantly influenced by age, education level, and prior experience, while the testing environment showed a less pronounced but still observable effect. Based on our findings, we propose design improvements to instructions, physical components of test kits, and instruction presentation. This research highlights the importance of usability in designing test kits that accommodate diverse populations, potentially improving public health outcomes and pandemic preparedness.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104654"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145245580","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}
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.
{"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":"2026-01-01","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}
Pub Date : 2026-01-01Epub Date: 2025-09-25DOI: 10.1016/j.apergo.2025.104642
Arafat Rahman , Sol Lim , Seokhyun Chung
Predicting external hand load from sensor data is essential for ergonomic exposure assessments, as obtaining this information typically requires direct observation or supplementary data. While machine learning can estimate hand load from posture or force data, we found systematic bias tied to biological sex, with predictive disparities worsening in imbalanced training datasets. To address this, we developed a fair predictive model using a Variational Autoencoder with feature disentanglement, which separates sex-agnostic from sex-specific motion features. This enables predictions based only on sex-agnostic patterns. Our proposed algorithm outperformed conventional machine learning models, including -Nearest Neighbors, Support Vector Machine, and Random Forest, achieving a mean absolute error of 3.42 and improving fairness metrics like statistical parity and positive and negative residual differences, even when trained on imbalanced sex datasets. These results underscore the importance of fairness-aware algorithms in avoiding health and safety disadvantages for specific worker groups in the workplace.
{"title":"Fairness in machine learning-based hand load estimation: A case study on load carriage tasks","authors":"Arafat Rahman , Sol Lim , Seokhyun Chung","doi":"10.1016/j.apergo.2025.104642","DOIUrl":"10.1016/j.apergo.2025.104642","url":null,"abstract":"<div><div>Predicting external hand load from sensor data is essential for ergonomic exposure assessments, as obtaining this information typically requires direct observation or supplementary data. While machine learning can estimate hand load from posture or force data, we found systematic bias tied to biological sex, with predictive disparities worsening in imbalanced training datasets. To address this, we developed a fair predictive model using a Variational Autoencoder with feature disentanglement, which separates sex-agnostic from sex-specific motion features. This enables predictions based only on sex-agnostic patterns. Our proposed algorithm outperformed conventional machine learning models, including <span><math><mi>k</mi></math></span>-Nearest Neighbors, Support Vector Machine, and Random Forest, achieving a mean absolute error of 3.42 and improving fairness metrics like statistical parity and positive and negative residual differences, even when trained on imbalanced sex datasets. These results underscore the importance of fairness-aware algorithms in avoiding health and safety disadvantages for specific worker groups in the workplace.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104642"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158360","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}
Pub Date : 2026-01-01Epub Date: 2025-09-17DOI: 10.1016/j.apergo.2025.104625
Manuel Fleps , Max Hörandel , Melina Fischer , Janina Krell-Roesch , Pascal Senn , Klaus Boes , Claudia Hildebrand
The aim of this intervention study was to examine the effects of two different implementation approaches of a passive, upper-limb exoskeleton (MATE-XT®) on the acceptability of the exoskeleton by participants and participants’ health in a workplace health promotion setting.
Participants were assigned to one of two groups and underwent either an exoskeleton application training (AT, N = 9) or standardized briefing (SB, N = 9) over a period of 4 weeks. Outcomes of interest, i.e., acceptability of the exoskeleton and participants’ health, were assessed using the Technology Usage Inventory and the Short-Form 12 Health Survey before, immediately after, and approximately one year after the 4-week implementation period. Wearing time was tracked over the 4-week implementation period.
AT participants reported significantly higher usefulness and usability, greater curiosity, reduced skepticism, and had a higher wearing time in the last two weeks of the implementation. In addition, they perceived the exoskeleton as more useful, and reported higher physical health outcomes than SB participants. At one-year-follow-up, AT participants continued to perceive the exoskeleton as more valuable.
本干预研究的目的是检查在工作场所健康促进环境中,被动式上肢外骨骼(MATE-XT®)的两种不同实施方法对参与者外骨骼可接受性和参与者健康的影响。参与者被分配到两组中的一组,在4周的时间内接受外骨骼应用训练(AT, N = 9)或标准化简报(SB, N = 9)。在为期四周的实施期之前、之后和大约一年后,使用技术使用清单和简短的12健康调查来评估感兴趣的结果,即外骨骼的可接受性和参与者的健康。在为期四周的实施期内,追踪佩戴时间。AT参与者报告了显著更高的有用性和可用性,更大的好奇心,更少的怀疑,并且在实施的最后两周有更高的佩戴时间。此外,他们认为外骨骼更有用,并报告了比SB参与者更高的身体健康结果。在一年的随访中,At参与者仍然认为外骨骼更有价值。
{"title":"Effects of different implementation approaches on the acceptability of a passive exoskeleton for workplace health promotion: An intervention study using the MATE-XT®","authors":"Manuel Fleps , Max Hörandel , Melina Fischer , Janina Krell-Roesch , Pascal Senn , Klaus Boes , Claudia Hildebrand","doi":"10.1016/j.apergo.2025.104625","DOIUrl":"10.1016/j.apergo.2025.104625","url":null,"abstract":"<div><div>The aim of this intervention study was to examine the effects of two different implementation approaches of a passive, upper-limb exoskeleton (MATE-XT®) on the acceptability of the exoskeleton by participants and participants’ health in a workplace health promotion setting.</div><div>Participants were assigned to one of two groups and underwent either an exoskeleton application training (AT, N = 9) or standardized briefing (SB, N = 9) over a period of 4 weeks. Outcomes of interest, i.e., acceptability of the exoskeleton and participants’ health, were assessed using the Technology Usage Inventory and the Short-Form 12 Health Survey before, immediately after, and approximately one year after the 4-week implementation period. Wearing time was tracked over the 4-week implementation period.</div><div>AT participants reported significantly higher usefulness and usability, greater curiosity, reduced skepticism, and had a higher wearing time in the last two weeks of the implementation. In addition, they perceived the exoskeleton as more useful, and reported higher physical health outcomes than SB participants. At one-year-follow-up, AT participants continued to perceive the exoskeleton as more valuable.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104625"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145088221","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}
Pub Date : 2026-01-01Epub Date: 2025-09-30DOI: 10.1016/j.apergo.2025.104651
Hailey M. Nestor , Amanda M. Calford , Daphne C. Ho , Richard Ferron , Taylor Cleworth , Andrew C. Laing , Steven L. Fischer
Patient lifting can expose health care workers to musculoskeletal disorder (MSD) risk factors. Portable lift assist devices may reduce exposure during lifting, however limited evidence on user feedback and efficacy is available to inform purchase decisions. Therefore, we tested the efficacy of two portable lift assist devices relative to a manual lift when lifting an individual from the floor. Participants lifted an actor from the floor using a manual technique and by using two lift assist devices, either an inflatable bladder or a mechanical device. Ratings of perceived exertion demonstrated that the lift assist devices decreased or maintained perceived exertion relative to the manual lift. Semi-structured interviews provided context where perceived benefits of the devices (i.e., decreased exertion and MSD risk) outweighed barriers (i.e., added time to call). The results of this study can inform stakeholders making decisions about lift assist devices purchases.
{"title":"Exploring the usability and perceived benefits and barriers of portable lift assist devices among paramedic workers","authors":"Hailey M. Nestor , Amanda M. Calford , Daphne C. Ho , Richard Ferron , Taylor Cleworth , Andrew C. Laing , Steven L. Fischer","doi":"10.1016/j.apergo.2025.104651","DOIUrl":"10.1016/j.apergo.2025.104651","url":null,"abstract":"<div><div>Patient lifting can expose health care workers to musculoskeletal disorder (MSD) risk factors. Portable lift assist devices may reduce exposure during lifting, however limited evidence on user feedback and efficacy is available to inform purchase decisions. Therefore, we tested the efficacy of two portable lift assist devices relative to a manual lift when lifting an individual from the floor. Participants lifted an actor from the floor using a manual technique and by using two lift assist devices, either an inflatable bladder or a mechanical device. Ratings of perceived exertion demonstrated that the lift assist devices decreased or maintained perceived exertion relative to the manual lift. Semi-structured interviews provided context where perceived benefits of the devices (i.e., decreased exertion and MSD risk) outweighed barriers (i.e., added time to call). The results of this study can inform stakeholders making decisions about lift assist devices purchases.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104651"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208568","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}
Pub Date : 2026-01-01Epub Date: 2025-10-09DOI: 10.1016/j.apergo.2025.104660
Jose Luis Sánchez-Jiménez , Esther Sánchez-Ribes , Jose Ignacio Priego-Quesada , Alberto Encarnación-Martínez , Roberto Sanchís-Sanchís , Pedro Pérez-Soriano
This study examined the impact of sex and lacing pattern on foot skin temperature (Tsk) and comfort during running. Twenty-four recreational runners participated in two treadmill trials involving cross-lacing and heel-lock lacing. Tsk and comfort were measured before and after 20 min of running at 10 km/h. Results revealed higher post-exercise Tsk with cross-lacing compared to heel-lock lacing (p = 0.003). Females had lower pre-exercise Tsk but higher post-exercise Tsk than males (p < 0.001). Heel-lock lacing was perceived as more comfortable (p < 0.05), and females reported higher heart rates and perceived exertion (p < 0.001). The mechanical work of running is crucial for the impact of lacing patterns on Tsk. Increased Tsk with cross-lacing negatively influences comfort, suggesting that lacing patterns can affect foot thermoregulation and subjective experience during running.
{"title":"Sex differences in young adults on comfort and foot skin temperature using different running shoes lacing","authors":"Jose Luis Sánchez-Jiménez , Esther Sánchez-Ribes , Jose Ignacio Priego-Quesada , Alberto Encarnación-Martínez , Roberto Sanchís-Sanchís , Pedro Pérez-Soriano","doi":"10.1016/j.apergo.2025.104660","DOIUrl":"10.1016/j.apergo.2025.104660","url":null,"abstract":"<div><div>This study examined the impact of sex and lacing pattern on foot skin temperature (Tsk) and comfort during running. Twenty-four recreational runners participated in two treadmill trials involving cross-lacing and heel-lock lacing. Tsk and comfort were measured before and after 20 min of running at 10 km/h. Results revealed higher post-exercise Tsk with cross-lacing compared to heel-lock lacing (p = 0.003). Females had lower pre-exercise Tsk but higher post-exercise Tsk than males (p < 0.001). Heel-lock lacing was perceived as more comfortable (p < 0.05), and females reported higher heart rates and perceived exertion (p < 0.001). The mechanical work of running is crucial for the impact of lacing patterns on Tsk. Increased Tsk with cross-lacing negatively influences comfort, suggesting that lacing patterns can affect foot thermoregulation and subjective experience during running.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"130 ","pages":"Article 104660"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267070","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}