Applied Ergonomics最新文献_第2页

Effects of postural loading during static posture holding on concurrent executive function task performance

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-03-12 DOI: 10.1016/j.apergo.2025.104501

Yihun Jeong , Haeseok Jeong , Doo Won Han , Philjun Moon , Woojin Park

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Drivers’ overall comfort experiences of reclined positions in a passenger car with an automated driving function

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-03-12 DOI: 10.1016/j.apergo.2025.104503

M. Makris , A. Muthumani , M. Herrera , D. Wang , M. Johansson , A.-L. Osvalder

引用次数: 0

Identifying smart technology and artificial intelligence solutions for human factors and ergonomic challenges in all-hazard response: A survey study

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-03-12 DOI: 10.1016/j.apergo.2025.104488

Junho Park , Ava Rathenberg , Jenn Panko , Zach McGhie , Changwon Son

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Gait variability predicts post-fatigue obstacle course performance among military cadets: An exploratory study

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-03-12 DOI: 10.1016/j.apergo.2025.104504

Sophia Ulman , Divya Srinivasan , Maury A. Nussbaum

{"title":"Gait variability predicts post-fatigue obstacle course performance among military cadets: An exploratory study","authors":"Sophia Ulman , Divya Srinivasan , Maury A. Nussbaum","doi":"10.1016/j.apergo.2025.104504","DOIUrl":"10.1016/j.apergo.2025.104504","url":null,"abstract":"<div><div>We explored the extent to which pre-fatigue gait variability during load carriage is associated with the ability of an individual to perform an obstacle course post-fatigue. Twenty-four military cadets were monitored during treadmill gait and completed an obstacle course before and after a full-body fatigue protocol. Gait variability measures were determined from spatiotemporal stride characteristics, joint angle trajectories, and inter-joint coordination. These measures were then used in multiple linear regression models to predict three measures of post-fatigue performance (i.e., hurdle completion time, maximum jump height, and maximum jump distance). Measures of joint kinematic variability predicted 73–89% of the variance in post-fatigue performance. Specifically, the significant predictors were sagittal plane variability of 1) hip angle and hip-knee coordination during swing phase; and 2) knee-ankle coordination during both stance and swing phase. Measures of joint kinematic variability obtained from gait thus appear relevant for predicting individual differences in adapting to fatigue, and such measures could aid in predicting post-fatigue performance in diverse dynamic tasks.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"126 ","pages":"Article 104504"},"PeriodicalIF":3.1,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601239","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

Effectiveness of a comprehensive health promotion intervention for managing risk factors associated with musculoskeletal disorders in Iranian housewives: A four-arm randomized controlled trial

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-03-04 DOI: 10.1016/j.apergo.2025.104489

Samaneh Norouzi , Sedigheh Sadat Tavafian , Rosanna Cousins , Hamidreza Mokarami

{"title":"Effectiveness of a comprehensive health promotion intervention for managing risk factors associated with musculoskeletal disorders in Iranian housewives: A four-arm randomized controlled trial","authors":"Samaneh Norouzi , Sedigheh Sadat Tavafian , Rosanna Cousins , Hamidreza Mokarami","doi":"10.1016/j.apergo.2025.104489","DOIUrl":"10.1016/j.apergo.2025.104489","url":null,"abstract":"<div><div>Full-time housework includes long hours of musculoskeletal effort that can lead to intense pain, poor workability, stress and reduced quality of life. A comprehensive intervention that included biomechanical and psychosocial educational training was designed and evaluated using a four-arm randomized control trial. A total of 160 housewives recruited from a musculoskeletal disorders clinic were randomly assigned to one of four intervention groups: control, biomechanical, psychosocial and comprehensive (biomechanical and psychosocial). Measures were collected before the seven weekly training sessions, immediately after, and three months and six months later. There were significant sustained improvements compared to baseline in the biomechanical and the psychosocial groups for six risk factors, and all seven risk factors in the comprehensive group providing evidence of independent contributions from biomechanical and psychosocial training approaches. This supported the overarching hypothesis that a comprehensive educational intervention can effectively reduce risk factors associated with musculoskeletal disorders in full-time housewives.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"126 ","pages":"Article 104489"},"PeriodicalIF":3.1,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of DC-powered pistol grip tool location and orientation on operator upper extremity stiffness and damping

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-03-03 DOI: 10.1016/j.apergo.2025.104491

Raj Arjun, Naveen Chandrashekar

{"title":"Effects of DC-powered pistol grip tool location and orientation on operator upper extremity stiffness and damping","authors":"Raj Arjun, Naveen Chandrashekar","doi":"10.1016/j.apergo.2025.104491","DOIUrl":"10.1016/j.apergo.2025.104491","url":null,"abstract":"<div><div>In automotive assembly lines, workers routinely used DC-powered pistol grip tools for the installation of threaded fasteners. The stiffness and damping offered by the hand-tool system dictates the handle displacement due to the reaction torque. The aim of the study was to predict the typical ranges of stiffness and damping offered by the upper extremity in different wrist orientations and locations while operating a pistol-grip hand tool. The hand-tool system was represented using a single degree-of-freedom torsional model and a deterministic approach was adopted to identify the system parameters. Tightening tasks were executed by ten experienced hand-tool operators at three torque levels (5 Nm, 7.5 Nm, and 10 Nm) and at four different fastener locations corresponding to varying wrist orientations. At 5 Nm, 7.5 Nm, and 10 Nm torques, the mean operator stiffnesses were 645 N/m, 879.5 N/m, and 1019 N/m respectively with a mean damping being 22.88 N/m, 15.14 N/m and 12.38 N/m respectively. The stiffness coefficients were different between wrist positions but not the damping coefficients. The research demonstrates the approach to model pistol grip hand tool operation and determine the stiffness and damping parameters. This approach could be used for determining optimal torque ranges and positions to minimize rotary tool handle displacement due to reaction torque, thereby reducing the risk of injury.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"126 ","pages":"Article 104491"},"PeriodicalIF":3.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development, validation, acceptability and usability of a device-based system to measure sit-stand desk usage

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-03-02 DOI: 10.1016/j.apergo.2025.104490

Genevieve N. Healy , Alejandro Melendez-Calderon , Sami Kaab , Noah Bongers , Katherine A. Heseltine , Chan Hi Yue , George Thomas , Bronwyn K. Clark

{"title":"Development, validation, acceptability and usability of a device-based system to measure sit-stand desk usage","authors":"Genevieve N. Healy , Alejandro Melendez-Calderon , Sami Kaab , Noah Bongers , Katherine A. Heseltine , Chan Hi Yue , George Thomas , Bronwyn K. Clark","doi":"10.1016/j.apergo.2025.104490","DOIUrl":"10.1016/j.apergo.2025.104490","url":null,"abstract":"<div><div>We describe the development and testing (across three studies) of an open-source device designed to measure sit-stand desk usage: the Desk Positioning System (DPS). Accuracy of the DPS was assessed under prescribed (Study 1) and free-living (Study 2; video criterion) conditions, across multiple desk-types. Study 3 assessed usability and acceptability in the short-term (1-week) and longer-term (5-weeks).</div></div><div><h3>Results</h3><div>In Study 1, the DPS was 100% accurate at identifying most conditions (presence at desk 59/72 conditions, detecting desk height 166/168). In Study 2 (n = 10) the DPS demonstrated high accuracy (F1>0.95) and precision (>0.98) against the criterion (7866 observations). Study 3 participants (n = 23) reported high device acceptability in both the short- (mean [sd] 4.4/5 [SD 0.4]) and longer-term (4.6/5 [0.5]). Usability was above the 68-score industry benchmark at the short- (72.4/100 [14.2]) and longer-term (74.7/100 [18.5]).</div></div><div><h3>Conclusion</h3><div>The DPS may provide an accurate, acceptable and useable way of understanding sit-stand desk usage.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"126 ","pages":"Article 104490"},"PeriodicalIF":3.1,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamics of COVID-19 crisis management in hospitals and its long-term effects: An analysis using organizational resilience

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-03-01 DOI: 10.1016/j.apergo.2025.104486

Nora Oufi , Cecila De la Garza , Adelaide Nascimento

引用次数: 0

Understanding the role of beliefs on intentions and actual usage of a tool for self-management of mental health among college students

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-02-27 DOI: 10.1016/j.apergo.2025.104485

Karim Zahed, Carl Markert, Farzan Sasangohar

{"title":"Understanding the role of beliefs on intentions and actual usage of a tool for self-management of mental health among college students","authors":"Karim Zahed, Carl Markert, Farzan Sasangohar","doi":"10.1016/j.apergo.2025.104485","DOIUrl":"10.1016/j.apergo.2025.104485","url":null,"abstract":"<div><div>Mental health issues are prevalent among college students, with digital interventions lacking in attempts to reduce participant attrition and address low engagement with technology. This study assessed changes in college students' beliefs regarding mental health after exposure to a digital mental health self-management coaching and education app, the Mental Health Evaluation and Lookout Program (mHELP). Participants' beliefs, measured using constructs from the Health Belief Model and Technology Acceptance Model, were compared to user engagement and changes in scores on validated scales for stress, depression, and anxiety. Participant beliefs including <em>self-efficacy</em>, <em>perceived ease of use</em>, and <em>cues to action</em> became more positive post-intervention. Higher participant <em>self-efficacy</em> indicated lower stress, anxiety, and depression ratings. Participants who believed stress to be a serious <em>health threat</em> and perceived the app as <em>useful</em> and <em>easy to use</em> were more likely to engage with the app. Providing digital mental health coaching showed significant relationships between students’ beliefs regarding mental health self-management, their engagement with the app, and the reduction in stress and anxiety.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"126 ","pages":"Article 104485"},"PeriodicalIF":3.1,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509276","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

Improving dynamic endurance time predictions for shoulder fatigue: A comparative evaluation

IF 3.1 2区工程技术

Applied Ergonomics Pub Date : 2025-02-24 DOI: 10.1016/j.apergo.2025.104480

Patricia O'Sullivan , Matteo Menolotto , Brendan O'Flynn , Dimitrios-Sokratis Komaris

{"title":"Improving dynamic endurance time predictions for shoulder fatigue: A comparative evaluation","authors":"Patricia O'Sullivan , Matteo Menolotto , Brendan O'Flynn , Dimitrios-Sokratis Komaris","doi":"10.1016/j.apergo.2025.104480","DOIUrl":"10.1016/j.apergo.2025.104480","url":null,"abstract":"<div><div>Work-related musculoskeletal disorders (WMSDs) are commonplace in industry and a host of qualitative and quantitative approaches have been used to assuage the problem, including wearable sensors and biomechanical endurance models, both of which were used in the present study. Six endurance models (consumed endurance, new improved consumed endurance and the exponential and power Frey Law and Avin general and shoulder models) with four alternative maximum torque (<span><math><mrow><msub><mrow><mi>T</mi><mi>o</mi><mi>r</mi><mi>q</mi><mi>u</mi><mi>e</mi></mrow><mi>max</mi></msub></mrow></math></span>) quantification methods, including a novel approach to generate <span><math><mrow><msub><mrow><mi>T</mi><mi>o</mi><mi>r</mi><mi>q</mi><mi>u</mi><mi>e</mi></mrow><mi>max</mi></msub></mrow></math></span>, were compared. The proposed approach to quantify <span><math><mrow><msub><mrow><mi>T</mi><mi>o</mi><mi>r</mi><mi>q</mi><mi>u</mi><mi>e</mi></mrow><mi>max</mi></msub></mrow></math></span>, in combination with the new improved consumed endurance model produced the lowest root mean square errors (RMSE), and indicated improved performance compared to the literature. The mean RMSE was reduced from 41.08s to 19.11s for all subjects, from 26.13s to 12.16s for males, and 51.28s to 24.45s for females using the proposed method. R<sup>2</sup> for 25% and 45% standardised intensity dynamic tasks were .459 and .314 respectively, P < .01. This research provided an optimised and individualised endurance prediction approach for loaded dynamic movements which can be applied to industry tasks and may lead to reduced upper-limb strains, and potentially WMSDs.</div></div>","PeriodicalId":55502,"journal":{"name":"Applied Ergonomics","volume":"125 ","pages":"Article 104480"},"PeriodicalIF":3.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0