Journal of Applied Biomechanics最新文献

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Quantitative Muscle Fascicle Tractography Using Brightness-Mode Ultrasound. 使用亮度模式超声的定量肌肉筋膜束造影术。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-10-04 Print Date: 2023-12-01 DOI: 10.1123/jab.2022-0270
Hannah Kilpatrick, Emily Bush, Carly Lockard, Xingyu Zhou, Crystal Coolbaugh, Bruce Damon
{"title":"Quantitative Muscle Fascicle Tractography Using Brightness-Mode Ultrasound.","authors":"Hannah Kilpatrick, Emily Bush, Carly Lockard, Xingyu Zhou, Crystal Coolbaugh, Bruce Damon","doi":"10.1123/jab.2022-0270","DOIUrl":"10.1123/jab.2022-0270","url":null,"abstract":"<p><p>A muscle's architecture, defined as the geometric arrangement of its fibers with respect to its mechanical line of action, impacts its abilities to produce force and shorten or lengthen under load. Ultrasound and other noninvasive imaging methods have contributed significantly to our understanding of these structure-function relationships. The goal of this work was to develop a MATLAB toolbox for tracking and mathematically representing muscle architecture at the fascicle scale, based on brightness-mode ultrasound imaging data. The MuscleUS_Toolbox allows user-performed segmentation of a region of interest and automated modeling of local fascicle orientation; calculation of streamlines between aponeuroses of origin and insertion; and quantification of fascicle length, pennation angle, and curvature. A method is described for optimizing the fascicle orientation modeling process, and the capabilities of the toolbox for quantifying and visualizing fascicle architecture are illustrated in the human tibialis anterior muscle. The toolbox is freely available.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"421-431"},"PeriodicalIF":1.1,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11304077/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41152973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Vehicle Seating Intervention Trial: Cross-Over Randomized Controlled Trial to Evaluate the Impact of 2 Car Seat Configurations on Spinal Posture. 汽车座椅干预试验:评估两种汽车座椅配置对脊柱姿势影响的交叉随机对照试验。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-10-04 Print Date: 2024-02-01 DOI: 10.1123/jab.2023-0040
Diana De Carvalho, Kristi Randhawa, Leslie Verville, Sheilah Hogg-Johnson, Samuel J Howarth, Carmen Liang, Silvano Mior, Pierre Côté
{"title":"The Vehicle Seating Intervention Trial: Cross-Over Randomized Controlled Trial to Evaluate the Impact of 2 Car Seat Configurations on Spinal Posture.","authors":"Diana De Carvalho, Kristi Randhawa, Leslie Verville, Sheilah Hogg-Johnson, Samuel J Howarth, Carmen Liang, Silvano Mior, Pierre Côté","doi":"10.1123/jab.2023-0040","DOIUrl":"10.1123/jab.2023-0040","url":null,"abstract":"<p><p>Driving posture can lead to musculoskeletal pain. Most work focuses on the lower back; therefore, we know little about automobile seat design and neck posture. This study evaluated an automobile driver seat that individualized upper back support to improve head and neck posture. Specifically, we examined the system's impact on anterior head translation with secondary outcomes of spine posture and perceptions of comfort/well-being compared with a control. Forty participants were block randomized to experience either the activated or deactivated version of the same seating system first. Participants completed two 30-minute simulated driving trials, separated by washout, with continuous measures of anterior head translation, spine posture, and pelvis orientation. Perceptions of comfort/well-being were assessed by survey and open-ended questions immediately following each condition. Small, but statistically significant decreases in anterior head translation and posterior pelvic tilt occurred with the activated seat system. Participants reported lower satisfaction with the activated seat system. Order of the 2 seat conditions affected differences in pelvis orientation and participant perceptions of comfort/well-being. An anthropometric-based seat system targeting upper back support can significantly affect head and pelvic posture but not satisfaction during simulated driving. Future work should examine long-term impacts of these posture changes on health outcomes.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"40-49"},"PeriodicalIF":1.4,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41174041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Variables Associated With Knee Valgus in Male Professional Soccer Players During a Single-Leg Vertical Landing Task. 男子职业足球运动员在单腿垂直落地任务中与膝外翻相关的变量。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-09-29 Print Date: 2024-02-01 DOI: 10.1123/jab.2023-0067
Matheus Vianna, Leonardo Metsavaht, Eliane Guadagnin, Carlos Eduardo Franciozi, Marcus Luzo, Marcio Tannure, Gustavo Leporace
{"title":"Variables Associated With Knee Valgus in Male Professional Soccer Players During a Single-Leg Vertical Landing Task.","authors":"Matheus Vianna, Leonardo Metsavaht, Eliane Guadagnin, Carlos Eduardo Franciozi, Marcus Luzo, Marcio Tannure, Gustavo Leporace","doi":"10.1123/jab.2023-0067","DOIUrl":"10.1123/jab.2023-0067","url":null,"abstract":"<p><p>Prior studies have explored the relationship between knee valgus and musculoskeletal variables to formulate injury prevention programs, primarily for females. Nonetheless, there is insufficient evidence pertaining to professional male soccer players. Here, the aim was to test the correlation of lateral trunk inclination, hip adduction, hip internal rotation, ankle dorsiflexion range of motion, and hip isometric strength with knee valgus during the single-leg vertical jump test. Twenty-four professional male soccer players performed a single-leg vertical hop test, hip strength assessments, and an ankle dorsiflexion range of motion test. A motion analysis system was employed for kinematic analysis. Maximal isometric hip strength and ankle dorsiflexion range of motion were tested using a handheld dynamometer and a digital inclinometer, respectively. The correlation of peak knee valgus with peak lateral trunk inclination was .43 during the landing phase (P = .04) and with peak hip internal rotation was -.68 (P < .001). For knee valgus angular displacement, only peak lateral trunk inclination presented a moderate positive correlation (r = .40, P = .05). This study showed that trunk and hip kinematics are associated with knee valgus, which could consequently lead to increased knee overload in male professional soccer players following a unilateral vertical landing test.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"9-13"},"PeriodicalIF":1.4,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41159903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The History and Future of Neuromusculoskeletal Biomechanics. 神经肌肉骨骼生物力学的历史与未来。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-09-26 Print Date: 2023-10-01 DOI: 10.1123/jab.2023-0165
David G Lloyd, Ilse Jonkers, Scott L Delp, Luca Modenese
{"title":"The History and Future of Neuromusculoskeletal Biomechanics.","authors":"David G Lloyd,&nbsp;Ilse Jonkers,&nbsp;Scott L Delp,&nbsp;Luca Modenese","doi":"10.1123/jab.2023-0165","DOIUrl":"https://doi.org/10.1123/jab.2023-0165","url":null,"abstract":"<p><p>The Executive Council of the International Society of Biomechanics has initiated and overseen the commemorations of the Society's 50th Anniversary in 2023. This included multiple series of lectures at the ninth World Congress of Biomechanics in 2022 and XXIXth Congress of the International Society of Biomechanics in 2023, all linked to special issues of International Society of Biomechanics' affiliated journals. This special issue of the Journal of Applied Biomechanics is dedicated to the biomechanics of the neuromusculoskeletal system. The reader is encouraged to explore this special issue which comprises 6 papers exploring the current state-of the-art, and future directions and roles for neuromusculoskeletal biomechanics. This editorial presents a very brief history of the science of the neuromusculoskeletal system's 4 main components: the central nervous system, musculotendon units, the musculoskeletal system, and joints, and how they biomechanically integrate to enable an understanding of the generation and control of human movement. This also entails a quick exploration of contemporary neuromusculoskeletal biomechanics and its future with new fields of application.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 5","pages":"273-283"},"PeriodicalIF":1.4,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41174042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tapping Into Skeletal Muscle Biomechanics for Design and Control of Lower Limb Exoskeletons: A Narrative Review. 利用骨骼肌生物力学设计和控制下肢外骨骼:叙述性综述。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-09-26 Print Date: 2023-10-01 DOI: 10.1123/jab.2023-0046
Zahra S Mahdian, Huawei Wang, Mohamed Irfan Mohamed Refai, Guillaume Durandau, Massimo Sartori, Mhairi K MacLean
{"title":"Tapping Into Skeletal Muscle Biomechanics for Design and Control of Lower Limb Exoskeletons: A Narrative Review.","authors":"Zahra S Mahdian,&nbsp;Huawei Wang,&nbsp;Mohamed Irfan Mohamed Refai,&nbsp;Guillaume Durandau,&nbsp;Massimo Sartori,&nbsp;Mhairi K MacLean","doi":"10.1123/jab.2023-0046","DOIUrl":"https://doi.org/10.1123/jab.2023-0046","url":null,"abstract":"<p><p>Lower limb exoskeletons and exosuits (\"exos\") are traditionally designed with a strong focus on mechatronics and actuation, whereas the \"human side\" is often disregarded or minimally modeled. Muscle biomechanics principles and skeletal muscle response to robot-delivered loads should be incorporated in design/control of exos. In this narrative review, we summarize the advances in literature with respect to the fusion of muscle biomechanics and lower limb exoskeletons. We report methods to measure muscle biomechanics directly and indirectly and summarize the studies that have incorporated muscle measures for improved design and control of intuitive lower limb exos. Finally, we delve into articles that have studied how the human-exo interaction influences muscle biomechanics during locomotion. To support neurorehabilitation and facilitate everyday use of wearable assistive technologies, we believe that future studies should investigate and predict how exoskeleton assistance strategies would structurally remodel skeletal muscle over time. Real-time mapping of the neuromechanical origin and generation of muscle force resulting in joint torques should be combined with musculoskeletal models to address time-varying parameters such as adaptation to exos and fatigue. Development of smarter predictive controllers that steer rather than assist biological components could result in a synchronized human-machine system that optimizes the biological and electromechanical performance of the combined system.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 5","pages":"318-333"},"PeriodicalIF":1.4,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41120981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Narrative Review of Personalized Musculoskeletal Modeling Using the Physiome and Musculoskeletal Atlas Projects. 使用生理学和肌肉骨骼图谱项目进行个性化肌肉骨骼建模的叙述性综述。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-08-22 Print Date: 2023-10-01 DOI: 10.1123/jab.2023-0079
Justin Fernandez, Vickie Shim, Marco Schneider, Julie Choisne, Geoff Handsfield, Ted Yeung, Ju Zhang, Peter Hunter, Thor Besier
{"title":"A Narrative Review of Personalized Musculoskeletal Modeling Using the Physiome and Musculoskeletal Atlas Projects.","authors":"Justin Fernandez,&nbsp;Vickie Shim,&nbsp;Marco Schneider,&nbsp;Julie Choisne,&nbsp;Geoff Handsfield,&nbsp;Ted Yeung,&nbsp;Ju Zhang,&nbsp;Peter Hunter,&nbsp;Thor Besier","doi":"10.1123/jab.2023-0079","DOIUrl":"10.1123/jab.2023-0079","url":null,"abstract":"In this narrative review, we explore developments in the field of computational musculoskeletal model personalization using the Physiome and Musculoskeletal Atlas Projects. Model geometry personalization; statistical shape modeling; and its impact on segmentation, classification, and model creation are explored. Examples include the trapeziometacarpal and tibiofemoral joints, Achilles tendon, gastrocnemius muscle, and pediatric lower limb bones. Finally, a more general approach to model personalization is discussed based on the idea of multiscale personalization called scaffolds.","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"304-317"},"PeriodicalIF":1.4,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10425917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Modeling Human Suboptimal Control: A Review. 人类次优控制建模:综述。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-08-16 Print Date: 2023-10-01 DOI: 10.1123/jab.2023-0015
Alex Bersani, Giorgio Davico, Marco Viceconti
{"title":"Modeling Human Suboptimal Control: A Review.","authors":"Alex Bersani,&nbsp;Giorgio Davico,&nbsp;Marco Viceconti","doi":"10.1123/jab.2023-0015","DOIUrl":"10.1123/jab.2023-0015","url":null,"abstract":"<p><p>This review paper provides an overview of the approaches to model neuromuscular control, focusing on methods to identify nonoptimal control strategies typical of populations with neuromuscular disorders or children. Where possible, the authors tightened the description of the methods to the mechanisms behind the underlying biomechanical and physiological rationale. They start by describing the first and most simplified approach, the reductionist approach, which splits the role of the nervous and musculoskeletal systems. Static optimization and dynamic optimization methods and electromyography-based approaches are summarized to highlight their limitations and understand (the need for) their developments over time. Then, the authors look at the more recent stochastic approach, introduced to explore the space of plausible neural solutions, thus implementing the uncontrolled manifold theory, according to which the central nervous system only controls specific motions and tasks to limit energy consumption while allowing for some degree of adaptability to perturbations. Finally, they explore the literature covering the explicit modeling of the coupling between the nervous system (acting as controller) and the musculoskeletal system (the actuator), which may be employed to overcome the split characterizing the reductionist approach.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"294-303"},"PeriodicalIF":1.4,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10014564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Digital Twin Framework for Precision Neuromusculoskeletal Health Care: Extension Upon Industrial Standards. 精确神经肌肉骨骼健康护理的数字双框架:工业标准的扩展。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-08-11 Print Date: 2023-10-01 DOI: 10.1123/jab.2023-0114
David J Saxby, Claudio Pizzolato, Laura E Diamond
{"title":"A Digital Twin Framework for Precision Neuromusculoskeletal Health Care: Extension Upon Industrial Standards.","authors":"David J Saxby,&nbsp;Claudio Pizzolato,&nbsp;Laura E Diamond","doi":"10.1123/jab.2023-0114","DOIUrl":"10.1123/jab.2023-0114","url":null,"abstract":"<p><p>There is a powerful global trend toward deeper integration of digital twins into modern life driven by Industry 4.0 and 5.0. Defense, agriculture, engineering, manufacturing, and urban planning sectors have thoroughly incorporated digital twins to great benefit across their respective product lifecycles. Despite clear benefits, a digital twin framework for health and medical sectors is yet to emerge. This paper proposes a digital twin framework for precision neuromusculoskeletal health care. We build upon the International Standards Organization framework for digital twins for manufacturing by presenting best available computational models within a digital twin framework for clinical application. We map a use case for modeling Achilles tendon mechanobiology, highlighting how current modeling practices align with our proposed digital twin framework. Similarly, we map a use case for advanced neurorehabilitation technology, highlighting the role of a digital twin in control of systems where human and machine are interfaced. Future work must now focus on creating an informatic representation to govern how digital data are passed to, from, and within the digital twin, as well as specific standards to declare which measurement systems and modeling methods are acceptable to move toward widespread use of the digital twin framework for precision neuromusculoskeletal health care.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"347-354"},"PeriodicalIF":1.4,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10332740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Predicting Gait Patterns of Children With Spasticity by Simulating Hyperreflexia. 模拟反射亢进预测痉挛儿童步态模式。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-08-02 Print Date: 2023-10-01 DOI: 10.1123/jab.2023-0022
Kirsten Veerkamp, Christopher P Carty, Niels F J Waterval, Thomas Geijtenbeek, Annemieke I Buizer, David G Lloyd, Jaap Harlaar, Marjolein M van der Krogt
{"title":"Predicting Gait Patterns of Children With Spasticity by Simulating Hyperreflexia.","authors":"Kirsten Veerkamp,&nbsp;Christopher P Carty,&nbsp;Niels F J Waterval,&nbsp;Thomas Geijtenbeek,&nbsp;Annemieke I Buizer,&nbsp;David G Lloyd,&nbsp;Jaap Harlaar,&nbsp;Marjolein M van der Krogt","doi":"10.1123/jab.2023-0022","DOIUrl":"10.1123/jab.2023-0022","url":null,"abstract":"<p><p>Spasticity is a common impairment within pediatric neuromusculoskeletal disorders. How spasticity contributes to gait deviations is important for treatment selection. Our aim was to evaluate the pathophysiological mechanisms underlying gait deviations seen in children with spasticity, using predictive simulations. A cluster analysis was performed to extract distinct gait patterns from experimental gait data of 17 children with spasticity to be used as comparative validation data. A forward dynamic simulation framework was employed to predict gait with either velocity- or force-based hyperreflexia. This framework entailed a generic musculoskeletal model controlled by reflexes and supraspinal drive, governed by a multiobjective cost function. Hyperreflexia values were optimized to enable the simulated gait to best match experimental gait patterns. Three experimental gait patterns were extracted: (1) increased knee flexion, (2) increased ankle plantar flexion, and (3) increased knee flexion and ankle plantar flexion when compared with typical gait. Overall, velocity-based hyperreflexia outperformed force-based hyperreflexia. The first gait pattern could mostly be explained by rectus femoris and hamstrings velocity-based hyperreflexia, the second by gastrocnemius velocity-based hyperreflexia, and the third by gastrocnemius, soleus, and hamstrings velocity-based hyperreflexia. This study shows how velocity-based hyperreflexia from specific muscles contributes to different spastic gait patterns, which may help in providing targeted treatment.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"334-346"},"PeriodicalIF":1.4,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9926985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Influence of Surface Geometry on Palm and Fist Contact Pressure Distribution During Strikes With the Hand in Automotive Assembly. 汽车装配手击过程中表面几何形状对手掌和拳头接触压力分布的影响
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-08-01 DOI: 10.1123/jab.2022-0127
Lukas Hausmanninger, Igor Komnik, Mario Fleiter, Wolfgang Potthast
{"title":"Influence of Surface Geometry on Palm and Fist Contact Pressure Distribution During Strikes With the Hand in Automotive Assembly.","authors":"Lukas Hausmanninger,&nbsp;Igor Komnik,&nbsp;Mario Fleiter,&nbsp;Wolfgang Potthast","doi":"10.1123/jab.2022-0127","DOIUrl":"https://doi.org/10.1123/jab.2022-0127","url":null,"abstract":"<p><p>The increase in repetitive strain injuries to the hand underscores the need for assessing and preventing musculoskeletal overuse associated with hand-intensive tasks. This study investigates the risk of overload injuries in soft tissue structures of the hand by analyzing the pressure distribution and location of peak pressure in the hand during snap-fit connection assembly in the automotive industry. The influence of the surface geometry of automotive trim components the pressure distribution and force imparted during strikes with the palm and the fist are investigated in a cohort of 30 subjects with extensive experience installing trim parts with snap-fit connections. Using the palm or fist (ulnar hand side) of the dominant hand, the subjects struck a simulation device with a flat, rounded, or edged surface geometry. The average peak force applied was 600 N (±122 N), nearly 3 times the force required to overcome the technical resistance of the snap-fit connector (220 N). Fist strikes exerted a 40% higher mean peak pressure and 18% higher mean pressure than did palm strikes. The pressure distribution in the region of the thenar eminence and soft tissue of the ulnar side of the hand did not differ between fist strikes on flat and edged surfaces. Considering the delicate anatomy of the hand, especially the hypothenar muscles on the ulnar side, assembling connection claps using the fist instead of the palm may prevent repetitive blunt trauma to the sensitive blood vessels and nerves in the palm.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 4","pages":"246-253"},"PeriodicalIF":1.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9927193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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