Journal of Electromyography and Kinesiology最新文献_第10页

Footedness but not dominance influences force steadiness during isometric dorsiflexion in young men 在年轻男性等长背屈过程中，足部而非支配性影响力量稳定性。

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-09-29 DOI: 10.1016/j.jelekin.2023.102828

Ivana Petrovic , Ioannis G. Amiridis , Theodoros Kannas , Zoi Tsampalaki , Ales Holobar , Chrysostomos Sahinis , Eleftherios Kellis , Daniel Stankovic , Roger M. Enoka

{"title":"Footedness but not dominance influences force steadiness during isometric dorsiflexion in young men","authors":"Ivana Petrovic , Ioannis G. Amiridis , Theodoros Kannas , Zoi Tsampalaki , Ales Holobar , Chrysostomos Sahinis , Eleftherios Kellis , Daniel Stankovic , Roger M. Enoka","doi":"10.1016/j.jelekin.2023.102828","DOIUrl":"10.1016/j.jelekin.2023.102828","url":null,"abstract":"<div><p><span>The aim of the study was to assess the potential influence of footedness and dominance on maximal force, force fluctuations and neural drive during dorsiflexion. Fifteen left-footed (LF) and fifteen right-footed (RF) young adults performed 2 maximal voluntary contractions (MVC) and 3 steady submaximal isometric contractions<span><span> at five target forces (5, 10, 20, 40 and 60% MVC) with the dorsiflexors of both legs. High-density electromyography (EMG) was used to record the discharge characteristics of </span>motor units (MUs) of Tibialis Anterior. MVC force and EMG amplitude (root mean square) were similar between the two legs and groups (p > 0.05). Force fluctuations (Coefficient of Variation, CoV for force), mean discharge rate of MUs, discharge variability (CoV of interspike interval), and variability in neural drive (standard deviation of filtered cumulative spike train) were greater (p < 0.05) and the input–output gain of the MUs (</span></span><em>Δ</em>DR/<em>Δ</em>F) was lower (p < 0.05) for the LF relative to the RF group. The differences in force fluctuations during steady contractions with the dorsiflexors were associated with footedness but not with dominance. They reflect greater variability in motor neuron output, as suggested by coefficient of variation for interspike interval (independent input) and the standard deviation of the smoothed discharge times (common input).</p></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"73 ","pages":"Article 102828"},"PeriodicalIF":2.5,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41158507","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

Influence of transcutaneous electrical nerve stimulation on the distance walked by older adults during the 6-min test of walking endurance 在6分钟步行耐力测试中，经皮神经电刺激对老年人步行距离的影响。

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-09-21 DOI: 10.1016/j.jelekin.2023.102827

Mohammed S. Alenazy, Rehab Al-Jaafari, Sajjad Daneshgar, Anneli Folkesson-Dey, Roger M. Enoka

{"title":"Influence of transcutaneous electrical nerve stimulation on the distance walked by older adults during the 6-min test of walking endurance","authors":"Mohammed S. Alenazy, Rehab Al-Jaafari, Sajjad Daneshgar, Anneli Folkesson-Dey, Roger M. Enoka","doi":"10.1016/j.jelekin.2023.102827","DOIUrl":"10.1016/j.jelekin.2023.102827","url":null,"abstract":"<div><p><span>The purpose of our study was to compare the influence of two types of transcutaneous electrical nerve stimulation<span> (TENS) on the performance of older adults on the 6-min test of walking endurance and on the ability to maintain balance during upright standing. Twenty-six healthy older adults (72 ± 5.4 yrs) performed tests of motor function while TENS was applied to the tibialis anterior and rectus femoris muscles of each leg. Linear mixed models were used to compare the influence of TENS on walking distance in a 6-min test of walking endurance and on sway-area rate in tests of standing balance. There was a significant decrease in the distances walked in each minute of the 6-min walk test for both the Continuous and Burst TENS modes compared with Baseline (p </span></span><em><</em> 0.01 and p <em><</em> 0.001, respectively). The influence of TENS on walking distance was associated with several significant effects on the mean and coefficient of variation for stride length and stride frequency between the first and last minute of the test and between the two TENS modes and the Baseline values. In contrast, there was no significant effect of TENS on sway-area rate in any balance test, which indicates that the supplementary sensory feedback compromised walking performance of older adults but not the ability to maintain balance during upright standing.</p></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"73 ","pages":"Article 102827"},"PeriodicalIF":2.5,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41107102","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

Effect of knee joint angle on vastus medialis and vastus lateralis rigidity during isometric submaximal voluntary knee extensions 膝关节角度对等长次最大程度自主伸膝过程中股内侧肌和股外侧肌刚性的影响。

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-09-21 DOI: 10.1016/j.jelekin.2023.102826

Jérémie Bouvier , Augustin C. Ogier , Cyril Martin , Alexandre Fouré

{"title":"Effect of knee joint angle on vastus medialis and vastus lateralis rigidity during isometric submaximal voluntary knee extensions","authors":"Jérémie Bouvier , Augustin C. Ogier , Cyril Martin , Alexandre Fouré","doi":"10.1016/j.jelekin.2023.102826","DOIUrl":"10.1016/j.jelekin.2023.102826","url":null,"abstract":"<div><p><span>The use of shear wave elastography during voluntary contraction has enabled the non-invasive assessment of load sharing strategies between agonist muscles. However, the change in joint angle and voluntary contraction intensity can modify contribution between muscles. The aim of this study was to investigate the effect of knee joint angle on the local mechanical properties of the </span><span><em>vastus</em><em> medialis</em></span> (VM) and the <em>vastus lateralis</em> (VL) during isometric submaximal voluntary contractions from shear wave elastography mapping. The VM and VL Young’s modulus at rest and during constant isometric submaximal voluntary contractions (<em>i.e.</em>, 25%, 50% and 75% of maximal voluntary contraction [MVC]) were assessed for two knee angles (50° and 100° | knee fully extended = 0°) in twelve participants. No significant difference was found in the VM Young’s modulus among all torque levels and knee angles (<em>p</em> > 0.05). VL Young’s modulus was significantly higher at 25% MVC for a knee angle of 100° than at 75% MVC for the same knee angle and was greater at 25% MVC for a knee angle of 100° than for 50° (<em>p</em> < 0.05). In contrast to the VM, the contribution of the VL to the knee joint torque production during isometric voluntary contraction appears to depend on the muscle length and the relative knee extension torque level.</p></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"73 ","pages":"Article 102826"},"PeriodicalIF":2.5,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41174707","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

Spatial decomposition of ultrafast ultrasound images to identify motor unit activity – A comparative study with intramuscular and surface EMG 识别运动单位活动的超快超声图像的空间分解——与肌内和表面肌电图的比较研究。

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-09-20 DOI: 10.1016/j.jelekin.2023.102825

Robin Rohlén , Emma Lubel , Bruno Grandi Sgambato , Christian Antfolk , Dario Farina

{"title":"Spatial decomposition of ultrafast ultrasound images to identify motor unit activity – A comparative study with intramuscular and surface EMG","authors":"Robin Rohlén , Emma Lubel , Bruno Grandi Sgambato , Christian Antfolk , Dario Farina","doi":"10.1016/j.jelekin.2023.102825","DOIUrl":"10.1016/j.jelekin.2023.102825","url":null,"abstract":"<div><p>The smallest voluntarily controlled structure of the human body is the motor unit (MU), comprised of a motoneuron and its innervated fibres. MUs have been investigated in neurophysiology research and clinical applications, primarily using electromyographic (EMG) techniques. Nonetheless, EMG (both surface and intramuscular) has a limited detection volume. A recent alternative approach to detect MUs is ultrafast ultrasound (UUS) imaging. The possibility of identifying MU activity from UUS has been shown by blind source separation (BSS) of UUS images, using optimal separation spatial filters. However, this approach has yet to be fully compared with EMG techniques for a large population of unique MU spike trains. Here we identify individual MU activity in UUS images using the BSS method for 401 MU spike trains from eleven participants based on concurrent recordings of either surface or intramuscular EMG from forces up to 30% of the maximum voluntary contraction (MVC) force. We assessed the BSS method’s ability to identify MU spike trains from direct comparison with the EMG-derived spike trains as well as twitch areas and temporal profiles from comparison with the spike-triggered-averaged UUS images when using the EMG-derived spikes as triggers. We found a moderate rate of correctly identified spikes (53.0 ± 16.0%) with respect to the EMG-identified firings. However, the MU twitch areas and temporal profiles could still be identified accurately, including at 30% MVC force. These results suggest that the current BSS methods for UUS can accurately identify the location and average twitch of a large pool of MUs in UUS images, providing potential avenues for studying neuromechanics from a large cross-section of the muscle. On the other hand, more advanced methods are needed to address the convolutive and partly non-linear summation of velocities for recovering the full spike trains.</p></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"73 ","pages":"Article 102825"},"PeriodicalIF":2.5,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41162583","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

Comparison of concentric and eccentric resistance training in terms of changes in the muscle contractile properties 同心和偏心阻力训练对肌肉收缩特性变化的比较

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-09-07 DOI: 10.1016/j.jelekin.2023.102824

Paweł Pakosz , Mariusz Konieczny , Przemysław Domaszewski , Tomasz Dybek , Mariusz Gnoiński , Elżbieta Skorupska

{"title":"Comparison of concentric and eccentric resistance training in terms of changes in the muscle contractile properties","authors":"Paweł Pakosz , Mariusz Konieczny , Przemysław Domaszewski , Tomasz Dybek , Mariusz Gnoiński , Elżbieta Skorupska","doi":"10.1016/j.jelekin.2023.102824","DOIUrl":"10.1016/j.jelekin.2023.102824","url":null,"abstract":"<div><p>The habitual use of resistance exercises involving concentric and eccentric contractions can increase muscle strength, speed and endurance. However, current knowledge has limited potential to fully understand the application of such resistance training and the muscle changes that occur to differentiate these two types of training. The aim of this study was to compare the effects of concentric contraction (CON) and eccentric contraction (ECC) during an acute bout of resistance training on the hamstring contractile properties. A group of 20 female recreational athletes were divided into two equal groups, CON training and ECC training. The contractile properties of the muscles on both sides of the body were assessed using tensiomyography (TMG): biceps femoris (BF) and semitendinosus (ST). The muscles were assessed twice, before and after 10 maximal repetitions of either concentric or eccentric isotonic contractions. The results indicate a greater change in TMG parameters with ECC training, with p < 0.001 (Td and Tc). An acute bout of resistance training induces changes in the muscle hamstrings contractile properties in both CON and ECC training. Eccentric training causes greater changes than concentric training, shortening contraction time (Td, Tc), increase radial displacement velocity (Vrd) and affecting changes in muscle belly displacement (Dm), so may be more effective in training.</p></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"73 ","pages":"Article 102824"},"PeriodicalIF":2.5,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10214940","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 effect of back muscle fatigue on EMG and kinematics based estimation of low-back loads and active moments during manual lifting tasks 背部肌肉疲劳对手动举重任务中基于肌电图和运动学的下背部负荷和活动力矩估计的影响

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-09-03 DOI: 10.1016/j.jelekin.2023.102815

A. Tabasi , N.P. Brouwer , I. Kingma , W. van Dijk , M.P. de Looze , A. Moya-Esteban , H. v. d. Kooij , J.H. van Dieën

{"title":"The effect of back muscle fatigue on EMG and kinematics based estimation of low-back loads and active moments during manual lifting tasks","authors":"A. Tabasi , N.P. Brouwer , I. Kingma , W. van Dijk , M.P. de Looze , A. Moya-Esteban , H. v. d. Kooij , J.H. van Dieën","doi":"10.1016/j.jelekin.2023.102815","DOIUrl":"10.1016/j.jelekin.2023.102815","url":null,"abstract":"<div><p>This study investigated the effects of back muscle fatigue on the estimation of low-back loads and active low-back moments during lifting, using an EMG and kinematics based model calibrated with data from an unfatigued state. Fourteen participants performed lifting tasks in unfatigued and fatigued states. Fatigue was induced through semi-static forward bending. EMG, kinematics, and ground reaction forces were measured, and low-back loads were estimated using inverse dynamics and EMG-driven muscle model. A regression model was developed using data from a set of calibration lifts, and its accuracy was evaluated for unfatigued and fatigued lifts. During the fatigue-inducing task, the EMG amplitude increased by 2.8 %MVC, representing a 38% increase relative to the initial value. However, during the fatigued lifts, the peak EMG amplitude was found to be 1.6 %MVC higher than that observed during the unfatigued lifts, representing a mere 4% increase relative to the baseline unfatigued peak EMG amplitude. Kinematics and low-back load estimates remained unaffected. Regression model estimation errors remained unaffected for 5 kg lifts, but increased by no more than 5% of the peak active low-back moment for 15 kg lifts. We conclude that the regression-based estimation quality of active low-back moments can be maintained during periods of muscle fatigue, although errors may slightly increase for heavier loads.</p></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"73 ","pages":"Article 102815"},"PeriodicalIF":2.5,"publicationDate":"2023-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10181142","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

Reliability of lower leg muscle elasticity using shear wave elastography in non-weight-bearing and weight-bearing 剪切波弹性成像在非承重和承重条件下小腿肌肉弹性的可靠性

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-09-01 DOI: 10.1016/j.jelekin.2023.102813

David J. Kempfert , Katy Mitchell , Wayne Brewer , Christina Bickley , Garrett Mandel

{"title":"Reliability of lower leg muscle elasticity using shear wave elastography in non-weight-bearing and weight-bearing","authors":"David J. Kempfert , Katy Mitchell , Wayne Brewer , Christina Bickley , Garrett Mandel","doi":"10.1016/j.jelekin.2023.102813","DOIUrl":"10.1016/j.jelekin.2023.102813","url":null,"abstract":"<div><h3>Purpose</h3><p>Muscle elasticity can be quantified with shear wave elastography (SWE) and has been used as an estimate of muscle force but reliability has not been established for lower leg muscles. The purpose of this study was to examine the intra-rater and inter-rater reliability of elasticity measures in non-weight-bearing (NWB) and weight-bearing (WB) for the tibialis anterior (TA), tibialis posterior (TP), peroneal longus (PL), and peroneal brevis (PB) muscles using SWE.</p></div><div><h3>Methods</h3><p>A total of 109 recreationally active healthy adults participated. The study employed a single-cohort, same-day repeated-measures test–retest design. Elasticity, measured in kilopascals as the Young’s modulus, was converted to the shear modulus. All four muscles were measured in NWB and at 90% WB.</p></div><div><h3>Results</h3><p>Intra-rater reliability estimates were good to excellent for NWB (ICC = 0.930–0.988) and WB (ICC = 0.877–0.978) measures. Inter-rater reliability estimates were moderate to good (ICC = 0.500–0.795) for NWB measures and poor to good (ICC = 0.346–0.910) for WB measures.</p></div><div><h3>Conclusion</h3><p>Despite the studies poor to good inter-rater variability, the intra-rater reproducibility represents the potential benefit of SWE in NWB and WB. Establishing the reliability of SWE with clinical and biomechanical approaches may aid in improved understanding of the mechanical properties of muscle.</p></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"73 ","pages":"Article 102813"},"PeriodicalIF":2.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10156295","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

Joint pressure stimuli increase quadriceps strength and neuromuscular activity in patients with knee osteoarthritis 关节压力刺激增加膝关节骨性关节炎患者股四头肌力量和神经肌肉活动

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-08-30 DOI: 10.1016/j.jelekin.2023.102814

Federico Temporiti , Sara Moro , Paola Adamo , Roberto Gatti

{"title":"Joint pressure stimuli increase quadriceps strength and neuromuscular activity in patients with knee osteoarthritis","authors":"Federico Temporiti , Sara Moro , Paola Adamo , Roberto Gatti","doi":"10.1016/j.jelekin.2023.102814","DOIUrl":"10.1016/j.jelekin.2023.102814","url":null,"abstract":"<div><p><span><span><span>The study investigated the effects of periarticular knee pressure stimuli on quadriceps strength and neuromuscular activity in subjects with </span>knee osteoarthritis. Twenty-five subjects with knee osteoarthritis and 25 age-matched healthy controls performed maximal voluntary knee extension tasks on an isometric dynamometer. Three different pressure stimuli (no-pressure, 60-mmHg, 120-mmHg) were applied using a </span>sphygmomanometer<span> via the cuff covering the knee joint. Peak torque and root-mean-square peak of rectus femoris (RF), vastus<span> medialis (VM), and vastus lateralis (VL) were collected and normalized for the no-pressure condition (nTorque-peak and nRMS-peak). Normalized Torque-peak increased from no-pressure to 60-mmHg and 120-mmHg in patients, which revealed higher nTorque-peak during 60-mmHg (MD: 10.9%, IC</span></span></span><sub>95</sub>: 1.8%, 20.1%, p = 0.020) and 120-mmHg (MD: 16.0%, IC<sub>95</sub>: 4.4%, 27.6%, p = 0.008) conditions than healthy subjects. Moreover, nRMS-peak increased from no-pressure to 60-mmHg for RF, from no-pressure to 120-mmHg for RF, VM and VL, and from 60-mmHg to 120 mm-Hg for VL in patients. Patients revealed higher nRMS-peak of RF and VM during 60-mmHg and 120-mmHg conditions than healthy subjects. Periarticular knee pressure stimuli enhanced quadriceps strength and neuromuscular activity in subjects with knee osteoarthritis. This approach may represent a new strength training modality in patients with neuromuscular activation deficits for knee osteoarthritis.</p></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"73 ","pages":"Article 102814"},"PeriodicalIF":2.5,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10182809","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

Hip muscle activity in people with hip-related pain compared to asymptomatic controls: A systematic review 与无症状对照组相比，髋关节相关疼痛患者的髋关节肌肉活动：一项系统综述

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-08-01 DOI: 10.1016/j.jelekin.2023.102784

Christopher Stewart , Matthew G. King , Joanne L. Kemp , Benjamin F. Mentiplay , Michael JM. O'Brien , Zuzana Perraton , Peter R. Lawrenson , Adam I. Semciw

{"title":"Hip muscle activity in people with hip-related pain compared to asymptomatic controls: A systematic review","authors":"Christopher Stewart , Matthew G. King , Joanne L. Kemp , Benjamin F. Mentiplay , Michael JM. O'Brien , Zuzana Perraton , Peter R. Lawrenson , Adam I. Semciw","doi":"10.1016/j.jelekin.2023.102784","DOIUrl":"10.1016/j.jelekin.2023.102784","url":null,"abstract":"<div><h3>Background</h3><p>Altered hip and thigh muscle activity have been observed across a spectrum of articular hip pathologies, including hip osteoarthritis<span><span>, femoroacetabular impingement syndrome, and labral pathology. No </span>systematic reviews<span> have examined muscle activity associated with hip pathology and hip-related pain across the life span. A greater understanding of impairments in hip and thigh muscle activity during functional tasks may assist in the development of targeted treatment strategies.</span></span></p></div><div><h3>Methods</h3><p>We conducted a systematic review using the PRISMA guidelines. A literature search was performed in five databases (MEDLINE, CINAHL, EMBASE, Sports Discuss, and PsychINFO). Studies were included that (i) investigated people with hip-related pain (femoroacetabular impingement syndrome, labral tears) or hip osteoarthritis; and (ii) reported on muscle activity using electromyography of hip and thigh muscles during functional tasks such as walking, stepping, squatting, or lunging. Two independent reviewers performed data extraction and assessed risk of bias using a modified version of the Downs and Black checklist.</p></div><div><h3>Results</h3><p>Non-pooled data demonstrated a limited level of evidence. Overall, differences in muscle activity appeared to be more prevalent in people with more advanced hip pathology.</p></div><div><h3>Conclusions</h3><p>We found that impairments in muscle activity in those with intra-articular hip pathology measured using electromyography were variable but appeared to be greater in severe hip pathology (e.g., hip OA).</p></div>","PeriodicalId":56123,"journal":{"name":"Journal of Electromyography and Kinesiology","volume":"71 ","pages":"Article 102784"},"PeriodicalIF":2.5,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10259341","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

Ultrafast ultrasound imaging can be used to access single motor units in deep muscles, but the underlying biomechanical source remains to be understood 超快超声成像可用于获取深层肌肉中的单个运动单元，但潜在的生物力学来源仍有待了解

IF 2.5 4区医学

Journal of Electromyography and Kinesiology Pub Date : 2023-08-01 DOI: 10.1016/j.jelekin.2023.102797

Christer Grönlund, Robin Rohlén

引用次数: 0