International Journal of Industrial Ergonomics最新文献_第9页

Influence of surface curvature and pinch span on the maximal force exertion of pinch grip: a prospective cohort study 面曲率和捏握间距对捏握最大力发挥影响的前瞻性队列研究

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-22 DOI: 10.1016/j.ergon.2025.103800

Jeewon Choi , Yu Lin , Ping Yeap Loh

This study investigated how the pinch surface curvature and pinch span influence the maximal voluntary pinch grip forces (MVFs) for different pinch types. Twelve male participants (age range: 22–34) underwent MVF measurements using a pinch grip on a dynamometer with six interchangeable attachment surfaces. They were randomly assigned to either a concave or convex handle group, each tested with three pinch spans (3, 5, and 7 cm) using a custom-designed dynamometer (Model T.K.K. 1269m and TSA-210; Takei Scientific Instruments Co., Ltd.). The pinch type was controlled as a tip, three-jaw, or key pinch, and both the dominant and non-dominant hands were examined. After completing the trials for each condition, participants rated their overall comfort, perceived fit, and perceived difficulty on a 5-point rating scale. We demonstrated that the concave surface was associated with greater MVFs than the convex surface (p < 0.01). However, the difference in MVF was insignificant when the pinch span was increased to 7 cm. The key pinch and dominant hand showed higher MVFs, better fit, and lower difficulty than their counterparts (key pinch: ps < 0.05; dominant hand: ps < 0.01). This study provides evidence on the design of pinch surface curvature and span that can effectively enhance MVF performance under varying pinch span conditions.

本文研究了不同夹握类型下，夹握面曲率和夹握跨度对最大自主夹握力的影响。12名男性参与者（年龄范围：22-34岁）接受了MVF测量，使用一个夹握在6个可互换的附着表面的测力计上。他们被随机分配到凹柄组或凸柄组，每个组使用定制设计的测力计（型号T.K.K. 1269m和TSA-210；武井科学仪器有限公司）进行三个捏距（3,5和7厘米）的测试。捏捏类型被控制为尖捏、三颚捏或键捏，并且检查了优势手和非优势手。在完成每种条件的试验后，参与者对他们的整体舒适度、感知契合度和感知困难度进行了5分制的评分。我们证明了凹表面比凸表面与更大的MVFs相关（p < 0.01）。当夹紧间距增加到7 cm时，MVF的差异不显著。键捏和优势手的MVFs值较高，配合度较好，难度较低（键捏：ps <； 0.05；优势手：ps <； 0.01）。研究结果表明，在不同夹紧跨度条件下，夹紧曲面曲率和夹紧跨度的设计可以有效地提高MVF的性能。

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引用次数: 0

Exploring the relationship between miners’ physiological signals and safety behavior in four emergency scenarios in coal mines: A virtual reality study 基于虚拟现实的煤矿四种应急情景下矿工生理信号与安全行为的关系研究

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-21 DOI: 10.1016/j.ergon.2025.103801

Yanyu Guo , Jizu Li , David Cliff

This study explores the relationship between miners' physiological signals and their safety behavior in emergency scenarios, with the aim of enhancing early warning systems for occupational safety. A virtual reality-based experiment was conducted in which miners were exposed to four simulated emergency scenarios. Physiological signals—including heart rate variability (Mean IBI, RMSSD, PNN50, LF/HF ratio), skin conductance (SC), and blood oxygen saturation (SPO₂)—were continuously recorded alongside behavioral performance measures such as reaction time and accuracy. Statistical analyses, including the Friedman test, repeated measures ANOVA, correlation analysis, and multivariate regression, revealed significant differences between emergency and resting conditions. Key findings indicated that faster reaction times were associated with lower PNN50 and SPO₂ but higher SC. Memory accuracy declined when PNN50 decreased and SC and skin temperature (SKT) increased. Discrimination performance improved with higher Mean IBI and SPO₂, but deteriorated with elevated RMSSD, PNN50, or reduced SKT. A classification model achieved 78.3 % accuracy in predicting miners’ safety behavior competence levels based on physiological inputs. These findings suggest a strong association between physiological responses and behavioral performance during emergencies, supporting the development of real-time physiological monitoring systems to enhance miners' safety. Further research should examine causal relationships and optimize predictive modeling approaches.

本研究旨在探讨紧急情况下矿工的生理信号与安全行为之间的关系，以完善职业安全预警系统。在一项基于虚拟现实的实验中，矿工们被暴露在四种模拟的紧急情况下。生理信号——包括心率变异性（平均IBI、RMSSD、PNN50、LF/HF比）、皮肤电导（SC）和血氧饱和度（SPO2）——与行为表现指标（如反应时间和准确性）一起连续记录。统计分析，包括弗里德曼检验、重复测量方差分析、相关分析和多变量回归，揭示了急救和休息条件之间的显著差异。实验结果表明，PNN50和SPO2降低与SC升高有关，PNN50降低、SC升高、SKT升高导致记忆准确性下降。随着平均IBI和SPO2的升高，识别性能得到改善，但随着RMSSD、PNN50或SKT的降低而恶化。基于生理输入的分类模型预测矿工安全行为能力水平的准确率达到78.3%。这些研究结果表明，紧急情况下的生理反应与行为表现之间存在密切联系，支持开发实时生理监测系统以提高矿工的安全。进一步的研究应该检查因果关系和优化预测建模方法。

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引用次数: 0

Impact of back and leg-support exoskeletons on novice users’ attention during repetitive lifting task 背部和腿部支撑外骨骼对新手用户在重复性举重任务中的注意力的影响

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-15 DOI: 10.1016/j.ergon.2025.103796

Daniel Leibman, HeeSun Choi

Industrial exoskeletons have the potential to reduce users' physical strain and fatigue and prevent injuries in manual and labor-intensive workplaces. However, the use of exoskeletons may increase users' attentional load, especially among those new to the technology, due to greater task demands involving adaptation to augmented and shifted physical capabilities, unfamiliarity with the device, and interference resulting from discomfort, device misfit, and mobility restrictions. In this study, 25 novice exoskeleton users performed an attentionally demanding visual target detection task concurrently with a repetitive lifting task, both with and without back- and leg-support exoskeletons using a within-subjects design. The results indicate that attentional task performance significantly declined when wearing exoskeletons, suggesting that exoskeleton use may impair users' attention. Participants' lifting task performance was also slowed when wearing exoskeletons. These findings suggest that exoskeleton use may initially impact workers’ performance on both motor and cognitive tasks. Changes in self-rated mental workload were not correlated with observed attentional decrements, indicating that subjective measure may not effectively detect cognitive demands associated with exoskeleton use.

工业外骨骼有可能减少使用者的身体紧张和疲劳，并防止在手工和劳动密集型工作场所受伤。然而，外骨骼的使用可能会增加用户的注意力负荷，特别是对于那些新接触该技术的用户，因为更大的任务需求涉及适应增强和转移的物理能力，对设备的不熟悉，以及由不适、设备不适合和移动限制引起的干扰。在这项研究中，25名外骨骼新手用户使用受试者内部设计，在使用或不使用背部和腿部支撑外骨骼的情况下，同时执行了一项注意力要求高的视觉目标检测任务。结果表明，佩戴外骨骼时，注意力任务表现显著下降，表明外骨骼使用可能会损害用户的注意力。佩戴外骨骼时，参与者的举重任务表现也会减慢。这些发现表明，外骨骼的使用最初可能会影响工人在运动和认知任务上的表现。自评心理工作量的变化与观察到的注意力下降无关，表明主观测量可能无法有效检测与外骨骼使用相关的认知需求。

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引用次数: 0

The effects of cognitive load and task precision restrictions on trunk and shoulder kinematics in a manual material handling task 认知负荷和任务精度限制对人工搬运任务中躯干和肩部运动学的影响

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-15 DOI: 10.1016/j.ergon.2025.103795

Anas Kachlan , Steven A. Lavender , Carolyn Sommerich

This study examined how a concurrent mental task and precision restrictions affected the kinematics of the trunk and shoulder during a simulated lifting task. Musculoskeletal disorders in material handling operations are highly prevalent. In addition to completing physically demanding work, workers must also manage concurrent mental demands. Few studies have examined the effect of concurrent mental demands in occupationally relevant tasks. This study quantified the effects of varying degrees of cognitive loads and task precision demands on a material handling task by examining these effects on the kinematics of the trunk and shoulders. Eleven subjects lifted and placed a 5 kg box at one of three destination heights (low, middle, high) while performing a simultaneous cognitive task (no task, a simple task, a complex task) and under two precision conditions (low precision, high precision). The cognitive task consisted of time-based arithmetic questions at two levels of difficulty. The primary dependent measures were the angular velocities of the trunk and shoulders. Significant decreases in angular velocities for both higher cognitive load complexities and higher precision conditions were observed, which differed depending on the destination height. Overall, this study found that increased complexity of a simultaneous cognitive task and higher task precision requirements led to longer lift times and decreased joint velocities.

本研究考察了在模拟举重任务中，并发的心理任务和精度限制如何影响躯干和肩部的运动学。材料搬运作业中的肌肉骨骼疾病非常普遍。除了完成体力要求高的工作外，员工还必须同时管理精神需求。很少有研究考察并行心理需求对职业相关任务的影响。本研究量化了不同程度的认知负荷和任务精度要求对材料搬运任务的影响，通过检查这些对躯干和肩部运动学的影响。11名受试者在同时执行认知任务（无任务、简单任务、复杂任务）和两种精度条件（低精度、高精度）时，将一个5公斤重的箱子举起并放置在三个目标高度（低、中、高）之一。认知任务包括两个难度等级的基于时间的算术问题。主要的依赖指标是躯干和肩膀的角速度。在高认知负荷复杂性和高精度条件下，角速度显著下降，这取决于目标高度。总的来说，这项研究发现，同时认知任务的复杂性增加和任务精度要求提高会导致抬升时间延长和关节速度下降。

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引用次数: 0

Development and evaluation of a mixed reality system for health education on neck stiffness and soreness 颈部僵硬和酸痛健康教育混合现实系统的开发和评价

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-06 DOI: 10.1016/j.ergon.2025.103779

Kuo-Wei Su , Hung-Jen Chen , Ching-Tzu Chen

Mobile phones are indispensable in daily life, especially among university students, yet their prolonged use has been linked to postural problems such as neck stiffness and soreness - conditions that may reflect more serious underlying health issues. Concurrently, a global shortage of nursing personnel is challenging healthcare systems, emphasizing the need for innovative educational tools that alleviate the workload of nursing professionals. This research develops and evaluates a mixed-reality (MR) system using Microsoft HoloLens to offer health education on neck health. The system's usability and user satisfaction are assessed through subjective scales and qualitative feedback to determine its effectiveness versus traditional educational materials.

Twenty participants were randomly assigned to two groups: an MR-based HoloLens group and a traditional leaflet group (10 participants each). Both groups received identical health education content on neck stiffness and soreness. Participants completed a 9-item knowledge test and semi-structured interviews to assess comprehension and to help gather system usability feedback. The HoloLens group further evaluated the system using the System Usability Scale (SUS) and the Questionnaire for User Interaction Satisfaction (QUIS).

While knowledge acquisition scores are comparable between the groups, the HoloLens group exhibits significantly higher levels of engagement and stronger intent to pursue further health education. The MR system obtains a mean SUS score of 76, denoting “Good” usability and a grade B rating. QUIS responses indicate high satisfaction levels across usability constructs. Qualitative feedback highlights the immersive and interactive design of the HoloLens system, which fosters engagement and motivates users by connecting educational content to personal relevance and curiosity. These findings demonstrate the potential of MR technologies to transform health education by bridging the gap between static information delivery and dynamic learner engagement, ultimately supporting improved comprehension and sustained interest in health topics.

手机在日常生活中是不可或缺的，尤其是对大学生来说，但长时间使用手机会导致颈部僵硬和酸痛等姿势问题，这些问题可能反映出更严重的潜在健康问题。同时，护理人员的全球短缺正在挑战医疗保健系统，强调需要创新的教育工具，减轻护理专业人员的工作量。本研究开发并评估了一种使用微软HoloLens提供颈部健康教育的混合现实（MR）系统。通过主观尺度和定性反馈来评估系统的可用性和用户满意度，以确定其与传统教材相比的有效性。20名参与者被随机分为两组：基于mr的HoloLens组和传统的传单组（每组10名参与者）。两组接受相同的颈部僵硬和疼痛健康教育内容。参与者完成了9项知识测试和半结构化访谈，以评估理解并帮助收集系统可用性反馈。HoloLens小组使用系统可用性量表（SUS）和用户交互满意度问卷（QUIS）进一步评估系统。虽然两组之间的知识获取得分相当，但HoloLens组表现出明显更高的参与度和更强的继续接受健康教育的意愿。MR系统的SUS平均得分为76分，表示“良好”可用性，评级为B级。QUIS的反应表明，跨可用性结构的满意度很高。定性反馈突出了HoloLens系统的沉浸式和交互式设计，通过将教育内容与个人相关性和好奇心联系起来，促进了用户的参与和激励。这些发现表明磁共振成像技术有潜力通过弥合静态信息传递和动态学习者参与之间的差距来改变健康教育，最终支持提高对健康主题的理解和持续兴趣。

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引用次数: 0

Shoulder pain influences kinematics during farm work tasks: An in-field study 肩部疼痛影响农场工作任务中的运动学：一项实地研究

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-05 DOI: 10.1016/j.ergon.2025.103798

Angelica E. Lang , Denise Balogh , Opeyemi Vincent Akinluyi , Niels Koehncke

Background

Work-related musculoskeletal disorders (MSDs) are prevalent among agricultural producers. Upper limb MSDs, especially in the shoulder and neck, are common, yet research on their development and prevention is limited. This study aims to investigate the influence of shoulder pain, age, and sex on shoulder kinematics during farm work tasks.

Methods

Farmers in Saskatchewan were recruited and divided into groups with and without shoulder pain. Participants performed four tasks (Overhead Drill, Climb Seeder, Seed Bag Lift, Shovel) while wearing inertial measurement units (IMUs) to track humeral and scapular movements. Data were analyzed using linear regression and Kruskal-Wallis tests (p < .05) to assess the effects of pain, age, and sex on shoulder kinematics.

Results

Forty-two participants (23 without pain, 19 with pain) completed the study. Pain significantly influenced shoulder kinematics during the Overhead Drill, Seed Bag Lift, and Shovel tasks. During the Overhead Drill, the pain group exhibited higher scapular upward rotation (p = .04, +5.1°) and females showed lower maximal humeral elevation (p = .049, −11.7°). In the Seed Bag Lift, the pain group had lower scapular upward rotation (p = .012, −18.7°) and higher humeral internal rotation (p = .04, +12.0°). Humeral elevation was also lower in the pain group during the Shovel task (p = .019, −12.7°).

Conclusions

Shoulder pain affects shoulder kinematics in farm work tasks, with variations depending on the task. Pain-related compensations can be both protective and harmful. These findings highlight the potential risk for shoulder injury in many aspects of farm work.

与工作相关的肌肉骨骼疾病（MSDs）在农业生产者中很普遍。上肢，特别是肩部和颈部的msd是常见的，但对其发展和预防的研究有限。本研究旨在探讨肩部疼痛、年龄和性别对农场工作时肩部运动学的影响。方法招募萨斯喀彻温省的农民并将其分为有肩痛组和无肩痛组。参与者在佩戴惯性测量装置（imu）来跟踪肱骨和肩胛骨运动的同时，完成了四项任务（架空播种机、爬升播种机、种子袋提升和铲子）。数据分析采用线性回归和Kruskal-Wallis检验(p <；.05)评估疼痛、年龄和性别对肩关节运动的影响。结果42例受试者（无疼痛23例，有疼痛19例）完成研究。疼痛显著影响肩运动学在架空钻，种子袋提升和铲任务。在头顶训练期间，疼痛组的肩胛骨向上旋转幅度较大（p = 0.04, +5.1°），而女性的最大肱骨抬高幅度较小（p = 0.049, - 11.7°）。在种子袋提术中，疼痛组肩胛骨下向上旋转（p = 0.012,−18.7°），肱骨内旋转（p = 0.04, +12.0°）。在Shovel任务期间，疼痛组的肱骨抬高也较低（p = 0.019, - 12.7°）。结论：肩关节疼痛会影响农活任务中肩关节的运动学，并随任务的不同而变化。与疼痛相关的补偿可能是保护性的，也可能是有害的。这些发现强调了在农场工作的许多方面肩部受伤的潜在风险。

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引用次数: 0

Evaluation and improvement of rail station name list signage on platform for direction by VR experiments with eye-tracker 基于眼动仪的VR实验评价与改进站台指路的铁路车站名单标识

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-05 DOI: 10.1016/j.ergon.2025.103781

Weitong Wang , Zijia Wang , Yufeng Li , Zixuan Mao , Danyong Feng , Liang Yu

Although considerable research has been conducted on signage, there remains room for further study on platform station name list signage. To evaluate and improve this, wayfinding experiments were carried out in a virtual reality-based rail station. Participants' multidimensional eye movement data and wayfinding performance were collected. The results revealed that participants strongly favored horizontal signage (HS), while vertical signage (VS) demonstrated better wayfinding performance. Additionally, participants exhibited varying levels of attention towards different regions of different types. Based on these findings, the signage was modified, outperforming HS in effectiveness and surpassing VS in information clarity and conciseness. This study contributes to a deeper understanding of passengers' cognitive behavior during wayfinding on subway platforms, particularly concerning diverse signage types, and provides valuable recommendations for signage evaluation and optimization.

虽然对标识进行了大量的研究，但站台名单标识的研究还有待进一步深入。为了评估和改进这一点，在一个基于虚拟现实的火车站进行了寻路实验。收集参与者的多维眼动数据和寻路表现。结果显示，参与者强烈喜欢水平标识（HS），而垂直标识（VS）表现出更好的寻路性能。此外，参与者对不同类型的不同区域表现出不同程度的注意力。基于这些发现，对标识进行了修改，在有效性上优于HS，在信息清晰度和简洁性上优于VS。本研究有助于更深入地了解乘客在地铁站台寻路过程中的认知行为，特别是对不同类型标识的认知行为，并为标识的评价和优化提供有价值的建议。

引用次数: 0

AR vs. physical displays: Pharmacists’ performance in identifying look-alike drug names AR与物理显示：药剂师在识别相似药物名称方面的表现

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-03 DOI: 10.1016/j.ergon.2025.103794

Pin-Ling Liu , Chih-Ling Tsai , Kang-Hung Liu , Chien-Chi Chang

Similar drug name confusion poses a significant risk in pharmacy practice, leading to medication errors with serious consequences. This study investigates pharmacists’ performance in recognizing look-alike drug names using an augmented reality (AR) virtual display versus a physical liquid crystal display (LCD) monitor. The influence of prior AR experience on performance was also examined. Twenty licensed pharmacists participated, performing recognition tasks on similar drug name pairs, with performance measured by accuracy rate, response time, fixation duration, and total fixation count. Results indicate that participants achieved an accuracy rate exceeding 96 % across all conditions, with overall accuracy slightly higher in the physical monitor environment. The AR display enabled task completion with significantly fewer total fixations compared to the physical monitor (p < 0.05). Additionally, participants with prior AR experience exhibited faster response times and shorter fixation durations in the AR environment. There were interactions between environment and prior AR experience for response time and fixation duration, suggesting that performance across environments varied depending on user familiarity. While physical and AR displays each present unique advantages and limitations, these findings underscore the importance of user familiarity in adapting to emerging technologies in pharmacy practice.

类似的药品名称混淆在药学实践中构成了重大风险，导致用药错误和严重后果。本研究调查了药剂师在使用增强现实（AR）虚拟显示器和物理液晶显示器（LCD）显示器识别相似药物名称方面的表现。我们还研究了先前AR经验对表现的影响。20名执业药师对相似的药品名称对进行识别，以正确率、反应时间、注视时间和总注视次数为衡量指标。结果表明，参与者在所有条件下的准确率都超过96%，在物理监测环境下的总体准确率略高。与物理显示器相比，AR显示器能够以更少的总注视完成任务(p <；0.05)。此外，具有AR经验的参与者在AR环境中表现出更快的反应时间和更短的注视时间。在响应时间和注视时间方面，环境和先前AR体验之间存在交互作用，这表明不同环境下的表现取决于用户的熟悉程度。虽然物理和增强现实各自显示出独特的优势和局限性，但这些发现强调了用户熟悉度在药房实践中适应新兴技术的重要性。

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引用次数: 0

Pedestrians’ social empathy and interaction with wheelchair Users: The impact of user gestures and mobility aid design in a pilot study 行人与轮椅使用者的社会共情与互动：使用者手势与行动辅助设计的影响

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-03 DOI: 10.1016/j.ergon.2025.103793

Mohsen Rasoulivalajoozi

Wheelchair users (WUs) experience various accessibility challenges in public spaces, which may lead them to seek assistance from pedestrians in difficult situations. In this context, understanding the factors influencing pedestrians' empathy and interaction with WUs facilitates their social interactions in challenging urban situations. This study examines how WUs’ body gestures and wheelchair design characteristics (WDCs) impact pedestrian perception and interaction. A pilot cross-sectional study was conducted with 52 participants in two phases: (1) a questionnaire assessing willingness to engage with WUs exhibiting independent or help-seeking gestures, and (2) evaluating four wheelchair types—from conventional to advanced—using key semantic descriptors of appearance and social perception. Findings revealed no significant relationship between age, gender, and willingness to interact across the two gesture conditions (p > 0.05), except for a significant association between age and willingness to interact with users of advanced powered wheelchairs in the help-seeking gesture condition (p = 0.027). Also, pedestrians' willingness to interact was significantly higher when WUs exhibited help-seeking gestures compared to independence gestures (p < 0.001). WDCs influenced pedestrian perceptions more strongly when WUs displayed independence (86.3 %) than help-seeking gestures (50 %). Moreover, analysis of semantic evaluations revealed distinct perceptual dimensions for advanced manual and powered wheelchairs, with three principal components identified for each, offering valuable insights for developing wheelchairs with greater social polish. This study highlights that both WDC and user gestures significantly affect pedestrian interaction, with the masking effect of help gestures on WDCs being a key finding. Additionally, advanced WDCs signify WUs' independence, helping reduce negative social stereotypes among pedestrians.

轮椅使用者在公共场所遇到各种无障碍挑战，这可能导致他们在困难的情况下寻求行人的帮助。在此背景下，了解影响行人移情和与wu互动的因素有助于他们在充满挑战的城市环境中进行社会互动。本研究探讨轮椅使用者的肢体动作与轮椅设计特征（wdc）对行人感知与互动的影响。对52名参与者进行了一项试验性横断研究，分两个阶段进行：(1)问卷调查，评估使用独立或寻求帮助手势的轮椅的意愿；(2)使用外观和社会感知的关键语义描述符评估从传统到高级的四种轮椅类型。研究结果显示，在两种手势条件下，年龄、性别和互动意愿之间没有显著关系(p >；在寻求帮助的手势条件下，年龄与与高级电动轮椅使用者互动的意愿之间存在显著关联（p = 0.027）。此外，当wu表现出求助手势时，行人的互动意愿显著高于独立手势(p <；0.001)。当WUs表现出独立性（86.3%）时，wdc对行人感知的影响比寻求帮助的手势（50%）更大。此外，语义评估分析揭示了高级手动轮椅和电动轮椅的不同感知维度，每种轮椅都确定了三个主要组成部分，为开发更具社交性的轮椅提供了有价值的见解。本研究强调WDC和用户手势都显著影响行人交互，其中帮助手势对WDC的掩盖效应是一个关键发现。此外，先进的wdc标志着wu的独立性，有助于减少行人的负面社会刻板印象。

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引用次数: 0

An extended individualized two-node human thermal model for high-temperature environments 高温环境下的扩展个体化双节点人体热模型

IF 3 2区工程技术 Q2 ENGINEERING, INDUSTRIAL

International Journal of Industrial Ergonomics

Pub Date : 2025-08-01 DOI: 10.1016/j.ergon.2025.103792

Donghua Liu , Xuanye Tong , Haitao Wang , Jie Yang

The human thermal model offers significant utility and advantages in predicting human heat strain. An advanced two-node human thermal model was proposed based upon Gagge's foundational to simulate individual physiological responses in high-temperature settings. This enhanced model incorporates the impacts of elevated temperatures on metabolic rate and the convective coefficient, and it accounts for individual variations in body surface area, the set points of body temperatures, and skin blood flow. Additionally, adjustments were made to the parameters representing clothing thermal insulation and vapor resistance. eight Chinese youths—four males and four females—were exposed to a high-temperature environment (35 °C/50 % RH) while wearing two different types of clothing to replicate light and moderate intensity activities to validate the model. The findings indicate that the model excels in predicting the thermal responses of individuals under this experimental condition. The maximal discrepancies between simulated and observed values for core and skin temperatures were confined to 0.3 °C and 0.6 °C, respectively. The model has been preliminarily demonstrated to reliably forecast individual physiological responses in given high-temperature environments. Nevertheless, the current framework does not take into account water loss in the human body, which is a key factor in long-term heat exposure. Looking to the future, more thermal regulation parameters can be comprehensively considered, and verified under various working conditions, so as to predict the thermal strain of the human body in high-temperature environments more comprehensively.

人体热模型在预测人体热应变方面具有重要的实用性和优越性。基于Gagge的基础，提出了一种先进的双节点人体热模型来模拟高温环境下的个体生理反应。该增强模型结合了高温对代谢率和对流系数的影响，并考虑了体表面积、体温设定点和皮肤血流量的个体变化。此外，还调整了代表服装隔热和防蒸汽性能的参数。八名中国青年——四男四女——穿着两种不同类型的衣服，暴露在高温环境（35°C/ 50% RH）中，重复轻度和中度强度的活动，以验证模型。结果表明，该模型能较好地预测该实验条件下个体的热反应。核心温度和皮肤温度的模拟值与观测值之间的最大差异分别限制在0.3°C和0.6°C。该模型已被初步证明可以可靠地预测特定高温环境下的个体生理反应。然而，目前的框架没有考虑到人体内的水分流失，这是长期热暴露的关键因素。展望未来，可以综合考虑更多的热调节参数，并在各种工况下进行验证，从而更全面地预测高温环境下人体的热应变。

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引用次数: 0