Journal of Electromyography and Kinesiology最新文献

Corrigendum to “Limb and sex-related differences in knee muscle co-contraction exist 3 months after anterior cruciate ligament reconstruction” [J. Electromyogr. and Kines. 66 (2022) 102693]

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-29 DOI: 10.1016/j.jelekin.2025.103002

Abdulmajeed Alfayyadh , Kelsey Neal , Jack R. Williams , Ashutosh Khandha , Kurt Manal , Lynn Snyder-Mackler , Thomas S. Buchanan

引用次数: 0

MVMD-TCCA: A method for gesture classification based on surface electromyographic signals

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-27 DOI: 10.1016/j.jelekin.2025.103006

Wenjie Chen, Shenke Zhang, Xiantao Sun, Cheng Zhang, Yuanyuan Liu

{"title":"MVMD-TCCA: A method for gesture classification based on surface electromyographic signals","authors":"Wenjie Chen, Shenke Zhang, Xiantao Sun, Cheng Zhang, Yuanyuan Liu","doi":"10.1016/j.jelekin.2025.103006","DOIUrl":"10.1016/j.jelekin.2025.103006","url":null,"abstract":"<div><div>Gesture recognition plays a fundamental role in enabling nonverbal communication and interaction, as well as assisting individuals with motor impairments in performing daily tasks. Surface electromyographic (sEMG) signals, which can effectively detect and predict motor intentions, are integral to achieving accurate gesture classification. This paper proposes a method, the multivariate variational mode decomposition and the two-channel convolutional neural network with added attention mechanism (MVMD-TCCA), to enhance the accuracy of gesture classification for motor intention recognition. The MVMD technique is utilized to decompose and fuse sEMG signals, enriching signal content and improving feature representation. To further optimize gesture classification performance, the convolutional block attention module (CBAM) and CrissCross attention mechanism are integrated into the neural network, enabling superior learning of local and spatial features. The experimental results show that the MVMD-TCCA method achieves an average classification accuracy of 85.09 % on the NinaPro DB2 dataset, representing a 13.46 % improvement compared to the use of the original signal, and an average classification accuracy of 97.90 % on the dataset collected from 15 subjects, reflecting a 1.70 % improvement over the original signal. These findings underscore the critical role of accurate gesture classification in facilitating daily task assistance for cerebral infarction patients, demonstrating the potential of the proposed approach.</div></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"82 ","pages":"Article 103006"},"PeriodicalIF":2.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738397","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

Does the rate of hip abductor and adductor muscle activation during weight transfer influence voluntary lateral stepping in chronic stroke?

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-26 DOI: 10.1016/j.jelekin.2025.103003

Shabnam Lateef, Marcel Bahia Lanza, Vicki L. Gray

{"title":"Does the rate of hip abductor and adductor muscle activation during weight transfer influence voluntary lateral stepping in chronic stroke?","authors":"Shabnam Lateef, Marcel Bahia Lanza, Vicki L. Gray","doi":"10.1016/j.jelekin.2025.103003","DOIUrl":"10.1016/j.jelekin.2025.103003","url":null,"abstract":"<div><div>People with chronic stroke (PwCS) suffer from impaired lateral weight transfer, resulting in a loss of balance. The primary purpose of this study was to examine how stroke impairs the rate of hip abductor-adductor muscle activation during weight transfer compared to controls, and whether this influences subsequent stepping performance. The secondary purpose was to determine how stroke affects bilateral coordinated hip abductor-adductor muscle activity between the step and stance legs. 20 PwCS (61.6 ± 7.4 years, 4F/16 M) and 10 healthy controls (64.8 ± 8.9 years, 5F/5M) were included. Participants took a voluntary lateral step, as quickly as possible, in response to a light cue. Bilateral Adductor Longus (ADD) and Gluteus Medius (GM) rate of muscle activation (RoA) were measured using electromyography, and spatiotemporal step characteristics were measured using motion capture. Paretic (<em>p</em> < 0.01) and non-paretic (<em>p</em> < 0.01) stance and step legs had a reduced GM and ADD RoA during weight transfer compared to controls. Reduced stance and step GM and ADD RoA were associated with longer weight transfer and step initiation times (r<sub>s</sub> = − 0.47 to – 0.63, <em>p</em> < 0.001). PwCS had a lack of bilateral coordinated GM and ADD activity (<em>p</em> > 0.05). Post-stroke reductions in GM and ADD RoA contribute to altered step characteristics.</div></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"82 ","pages":"Article 103003"},"PeriodicalIF":2.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759585","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

Depth sensor technology in facial movement analysis: A comparative evaluation with marker-based motion analysis

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-26 DOI: 10.1016/j.jelekin.2025.103005

Beste Yilmaz, Umut Ozsoy, Yilmaz Yildirim, Ege Alkan

{"title":"Depth sensor technology in facial movement analysis: A comparative evaluation with marker-based motion analysis","authors":"Beste Yilmaz, Umut Ozsoy, Yilmaz Yildirim, Ege Alkan","doi":"10.1016/j.jelekin.2025.103005","DOIUrl":"10.1016/j.jelekin.2025.103005","url":null,"abstract":"<div><h3>Objective</h3><div>This study evaluates the reliability and agreement of depth sensor technology compared to marker-based motion analysis for facial movement assessment. Depth sensors, such as the Kinect-V2, offer a non-invasive alternative, but their accuracy in facial kinematics remains uncertain.</div></div><div><h3>Method</h3><div>100 healthy participants (50 male, 50 female) performed six facial movements— opening −mouth, smiling, eyebrow-lifting, forced-eye-closure, whistling, and frowning. These were recorded simultaneously using a marker-based motion system and a Kinect-V2 depth sensor. Data were analyzed for asymmetry, intra-method reliability using intraclass correlation coefficients (ICC), and agreement via Bland-Altman analysis.</div></div><div><h3>Results</h3><div>Bland-Altman analysis showed mean biases for facial movements: opening-mouth (−0.99), smiling (2.7), eyebrow-lifting (−1.85), forced-eye-closure (−1.77), whistling (11.59), and frowning (20.82). Mean asymmetry values using the marker-based system vs. depth sensor: smiling (8.16%vs.4.22%), eyebrow-lifting (7.32%vs.6.88%), eye-closure (8.42%vs.5.39%), and frowning (11.50vs.13.86%). ICC values ranged from 0.41 (forced-eye-closure) to 0.80 (eyebrow lifting) for the marker-based system and 0.61 (forced-eye-closure) to 0.85 (mouth opening) for the depth sensor.</div></div><div><h3>Conclusions</h3><div>While depth sensors show strong intra-method reliability, they demonstrate biases and broader limits of agreement for subtle expressions. Further algorithmic improvements are needed for clinical applications.</div></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"82 ","pages":"Article 103005"},"PeriodicalIF":2.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759586","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

Analysis of agricultural applicability of arm-support exoskeletons with simulated orchard pruning and harvesting tasks

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-26 DOI: 10.1016/j.jelekin.2025.103008

Byungkyu Choi, Jaehyun Park

{"title":"Analysis of agricultural applicability of arm-support exoskeletons with simulated orchard pruning and harvesting tasks","authors":"Byungkyu Choi, Jaehyun Park","doi":"10.1016/j.jelekin.2025.103008","DOIUrl":"10.1016/j.jelekin.2025.103008","url":null,"abstract":"<div><div>Repetitive upper limb movements involved in pruning and harvesting tasks can cause musculoskeletal disorders, threatening the sustainability of the agricultural workforce. The present study determines whether arm-support exoskeletons (ASEs) would be an effective intervention to reduce the physical strain associated with manual pruning and harvesting tasks in orchard agriculture. Participants (<em>n</em> = 24; sex-balanced) performed simulated pruning and harvesting tasks at four different heights using two commercially available ASEs. Muscle activity, perceived exertion, task completion time, and usability were measured. The results indicated that ASEs significantly reduced muscle activity in the upper limbs. However, this resulted in additional strain on other body parts, such as the lower back and lower limbs, and increased task completion time. These findings highlight the need for continuous research and systematic designs to pursue feasible interventions for implementing ASEs in orchard agriculture. The findings of this study are expected to contribute to understanding the potential benefits and limitations of using ASEs in pruning and harvesting tasks, specifically in the context of orchard agriculture.</div></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"82 ","pages":"Article 103008"},"PeriodicalIF":2.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747956","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

Impact of age on muscle and kinematic responses to an obstacle trip while walking

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-19 DOI: 10.1016/j.jelekin.2025.102993

Steven Phu , Daina L Sturnieks , Stephen R Lord , Yoshiro Okubo

{"title":"Impact of age on muscle and kinematic responses to an obstacle trip while walking","authors":"Steven Phu , Daina L Sturnieks , Stephen R Lord , Yoshiro Okubo","doi":"10.1016/j.jelekin.2025.102993","DOIUrl":"10.1016/j.jelekin.2025.102993","url":null,"abstract":"<div><h3>Introduction</h3><div>This study examined the impact of age on muscle and kinematic responses to an obstacle trip while walking.</div></div><div><h3>Materials and Methods</h3><div>102 older (65–90 years) and 26 young (21–35 years) people were unexpectedly tripped using a pop-up obstacle that contacted their left foot while walking on an 8-m walkway. Kinematics and lower limb muscle responses during the first and second recovery steps were measured.</div></div><div><h3>Results</h3><div>Following a trip, older people more often lowered their tripped foot before the obstacle and fell into the harness, compared to young (<em>P</em> < 0.05). When the tripped foot was immediately lifted over the obstacle, older people showed greater co-contraction of ankle muscles and faster peak activation of plantar-flexors but slower, shorter and lower recovery steps than young (<em>P</em> < 0.01). When the tripped foot was immediately lowered, despite similar muscle responses, older people took shorter and lower steps to clear the obstacle and were less stable than young (<em>P</em> < 0.01).</div></div><div><h3>Conclusions</h3><div>Lower-limb muscle responses to an obstacle trip in older people may be quick but inefficient (co-contraction), resulting in poorer recovery steps and more falls compared to young people. Exercise interventions should aim to improve muscle capacity and motor skills required to prevent falls following unexpected trips.</div></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"82 ","pages":"Article 102993"},"PeriodicalIF":2.0,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714534","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

Effects of neuromuscular training on proprioception and muscular reaction time in older woman: Randomized controlled trial

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-17 DOI: 10.1016/j.jelekin.2025.102994

Yeny Concha-Cisternas , José Castro Piñero , Carlos Celis-Morales , Pablo Valdés-Badilla , Cristian Núñez-Espinosa , Igor Cigarroa , Joaquín Salazar-Méndez , Miguel Alarcón-Rivera , Eduardo Guzmán -Muñoz

{"title":"Effects of neuromuscular training on proprioception and muscular reaction time in older woman: Randomized controlled trial","authors":"Yeny Concha-Cisternas , José Castro Piñero , Carlos Celis-Morales , Pablo Valdés-Badilla , Cristian Núñez-Espinosa , Igor Cigarroa , Joaquín Salazar-Méndez , Miguel Alarcón-Rivera , Eduardo Guzmán -Muñoz","doi":"10.1016/j.jelekin.2025.102994","DOIUrl":"10.1016/j.jelekin.2025.102994","url":null,"abstract":"<div><h3>Background</h3><div>this study aimed analyze the effects of a neuromuscular training program compared to a multicomponent training program on proprioception and muscle reaction time in older woman.</div></div><div><h3>Material and methods</h3><div>Randomized controlled trial, included 54 older women randomized into 3 groups: multicomponent group (MCG), neuromuscular group (NMG), and control group (CG). Proprioception was assessed using the active repositioning test in the shoulder, elbow, hip, and knee joints. The muscular reaction time of the peroneus longus, tibialis anterior, and gastrocnemius medialis were evaluated. MCG carried out a multicomponent training program and, NMG realized neuromuscular training program plus the multicomponent training.</div></div><div><h3>Results</h3><div>A significant time × group interaction was observed in proprioception the shoulder joints (F = 7.57; p = 0.003; ηp<sup>2</sup> = 0.255), hip joints (F = 10.2; p = < 0.001; ηp<sup>2</sup> = 0.258) and knee (F = 7.12; p = 0.004; ηp<sup>2</sup> = 0.244) and reaction time of the peroneus longus (F = 13.7; p = < 0.001; ηp<sup>2</sup> = 0.378), tibialis anterior (F = 8.14; p = 0.002; ηp<sup>2</sup> = 0.246) and gastrocnemius medial (F = 7.86; p = 0.003; ηp<sup>2</sup> = 0.263). Multiple comparisons showed that there are significant improvements between the pre-and post-assessment of the NMG in proprioception and muscle reaction time.</div></div><div><h3>Conclusions</h3><div>Neuromuscular training program enhances the effects of multicomponent training and should be included in the physical activity programs of older people.</div></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"82 ","pages":"Article 102994"},"PeriodicalIF":2.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686632","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

Impact of repetitive mouse aiming on muscle fatigue and fine motor performance of the distal upper limb 重复瞄准鼠标对上肢远端肌肉疲劳和精细运动能力的影响

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-13 DOI: 10.1016/j.jelekin.2025.102992

Garrick N. Forman , Sophia A. Nikitin , Cameron J. Lang , David A. Gabriel , Michael W. Sonne , Aaron M. Kociolek , Michael W.R. Holmes

{"title":"Impact of repetitive mouse aiming on muscle fatigue and fine motor performance of the distal upper limb","authors":"Garrick N. Forman , Sophia A. Nikitin , Cameron J. Lang , David A. Gabriel , Michael W. Sonne , Aaron M. Kociolek , Michael W.R. Holmes","doi":"10.1016/j.jelekin.2025.102992","DOIUrl":"10.1016/j.jelekin.2025.102992","url":null,"abstract":"<div><div>Gaming is demanding, however, the impact of gaming on muscle fatigue and performance changes is unclear. The purpose of this study was to evaluate muscle fatigue and performance impairments during an extended mouse aiming fatigue protocol. Twenty participants were recruited (8F, 12 M), separated into gaming and non-gaming groups. Surface electromyography was measured from eight muscles of the right distal upper limb. Participants performed a 30-second aiming task using aim training software. The fatiguing protocol involved six, 5-minute bouts of hitting targets in AimLab. To assess muscle fatigue, reference contractions of radial and ulnar deviation (30% max) as well as ratings of perceived fatigue (RPF) were collected throughout the experiment. The wrist extensors produced the greatest levels of muscle activity while aiming a mouse, producing up to 9.3% MVC. No changes in performance measures were observed throughout the experiment. However, significant fatigue of extensors was observed through changes in RPF, mean power frequency, median frequency, and spike shape analysis. Performance metrics indicated no impairments caused by the fatiguing protocol. Changes in EMG characteristics indicate that the wrist extensors became significantly fatigued through prolonged mouse aiming, indicating the extensors may be prone to gaming related fatigue and injury.</div></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"82 ","pages":"Article 102992"},"PeriodicalIF":2.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143675019","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

Surface electromyography for characterizing neuromuscular changes in diabetic peripheral neuropathy

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-13 DOI: 10.1016/j.jelekin.2025.102991

I. Junquera-Godoy , J.L. Martinez-De-Juan , G. González Lorente , J.M. Carot-Sierra , J. Gomis-Tena , J. Saiz , R. López Mateu , G.C. Mas Penalva , S.Garcia Blasco , E. Boix Carreño , E. Soler Climent , G. Prats-Boluda

{"title":"Surface electromyography for characterizing neuromuscular changes in diabetic peripheral neuropathy","authors":"I. Junquera-Godoy , J.L. Martinez-De-Juan , G. González Lorente , J.M. Carot-Sierra , J. Gomis-Tena , J. Saiz , R. López Mateu , G.C. Mas Penalva , S.Garcia Blasco , E. Boix Carreño , E. Soler Climent , G. Prats-Boluda","doi":"10.1016/j.jelekin.2025.102991","DOIUrl":"10.1016/j.jelekin.2025.102991","url":null,"abstract":"<div><h3>Purpose</h3><div>Distal symmetric polyneuropathy (DSP) is the most common diabetic neuropathy (75% of all diabetic neuropathies), potentially leading to plantar ulcers and lower limb amputation. Early detection of at-risk individuals is essential for timely intervention. This study aimed to evaluate different surface EMG (sEMG) parameters from isometric and dynamic exercises as biomarkers for early DSP detection and monitoring.</div></div><div><h3>Methods</h3><div>The study involved 61 participants (34 controls and 27 cases with low, moderate and high levels of severity). sEMG signals were recorded from four lower-limb muscles (tibialis anterior, medial gastrocnemius, extensor digitorum brevis, and flexor digitorum brevis) and characterized by their amplitude, frequency, complexity and shape.</div></div><div><h3>Results</h3><div>Significant sEMG differences were found between controls and diabetic patients at low and moderate/high DSP risk, especially in the extensor digitorum and flexor digitorum muscles during isometric and dynamic exercises. Diabetic patients showed lower amplitude and complexity, with higher frequency, peakedness, and asymmetry.</div></div><div><h3>Conclusion</h3><div>Parameters like root mean square, sample entropy, and central shape distance effectively distinguished between groups, highlighting changes in motor unit recruitment and muscle quality. Dynamic and isometric exercises emphasized their complementary roles in assessing muscle function, supporting sEMG’s potential as a non-invasive tool for monitoring neuromuscular changes in diabetes.</div></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"82 ","pages":"Article 102991"},"PeriodicalIF":2.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686631","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

Delayed onset muscle soreness effect on spinal stiffness and flexion-relaxation phenomenon of the lumbar spine

IF 2 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2025-03-08 DOI: 10.1016/j.jelekin.2025.102990

Pierre Mounier , Greg Kawchuk , Arnaud Delafontaine , Jacques Abboud , Martin Descarreaux , Mégane Pasquier

引用次数: 0