Motor Control最新文献

Impact of Competitive Experience and Shooting Distance on Muscle Synergy Patterns and Release Performance in Jump Shots. 竞技经验和投篮距离对跳投肌肉协同模式和释放性能的影响。

IF 0.9 4区医学

Motor Control Pub Date : 2025-06-17 DOI: 10.1123/mc.2024-0120

Junhui Xv, Xuan Tang, Ming Li, Zhe Hu

{"title":"Impact of Competitive Experience and Shooting Distance on Muscle Synergy Patterns and Release Performance in Jump Shots.","authors":"Junhui Xv, Xuan Tang, Ming Li, Zhe Hu","doi":"10.1123/mc.2024-0120","DOIUrl":"10.1123/mc.2024-0120","url":null,"abstract":"This study investigated the influence of playing experience on muscle synergy and the vertical (VV) and horizontal release velocities of the basketball during mid- to long-distance jump shots (4.8 and 6.75 m). A total of 28 participants performed jump shot tasks at these two distances, completing three valid attempts at each. The shooting movements were captured using a 3D motion capture system, and surface electromyographic data were recorded from five key muscles. Velocity data were used to calculate VV and horizontal release velocity, while electromyographic data were analyzed using nonnegative matrix factorization to extract muscle synergies. A two-factor mixed-effects model was applied to assess significant differences. The results showed that playing experience significantly enhanced VV (p < .001), which was potentially associated with higher contribution weights from the anterior deltoid, triceps brachii, flexor carpi radialis, and gastrocnemius lateralis within the extracted muscle synergies. As shooting distance increased, both VV and horizontal release velocity significantly increased (p < .05) in both groups. Synergy analysis further revealed that experienced athletes demonstrated higher contribution weights of triceps brachii and exhibited synergy activation profiles with later peak timings, greater activation magnitudes, and shorter activation durations. These synergy-based patterns suggest more efficient and stable motor control in experienced athletes. Based on these findings, it is recommended that novice athletes incorporate strength and timing control training targeting anterior deltoid, triceps brachii, flexor carpi radialis, and gastrocnemius lateralis to improve shooting consistency and stability.","PeriodicalId":49795,"journal":{"name":"Motor Control","volume":" ","pages":"1-17"},"PeriodicalIF":0.9,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334317","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

Textured Insoles for Improving Balance in Knee Osteoarthritis: Short-Term Effects and Long-Term Sustainability. 改善膝关节骨关节炎平衡的纹理鞋垫：短期效果和长期可持续性。

IF 0.9 4区医学

Motor Control Pub Date : 2025-06-17 DOI: 10.1123/mc.2025-0021

Hyoungjin Park

{"title":"Textured Insoles for Improving Balance in Knee Osteoarthritis: Short-Term Effects and Long-Term Sustainability.","authors":"Hyoungjin Park","doi":"10.1123/mc.2025-0021","DOIUrl":"10.1123/mc.2025-0021","url":null,"abstract":"This study aimed to investigate both immediate and long-term (3 months) effects of textured insoles on balance control in individuals with knee osteoarthritis (OA). Twenty-four participants were divided into two groups: individuals with knee OA (n = 12) and healthy age-matched controls (n = 12). Balance was assessed using the Sensory Organization Test under three conditions: baseline with smooth insoles, immediate effect with textured insoles, and after 3 months of textured insole use. Individuals with knee OA had significantly lower baseline balance performance in complex sensory integration tasks (p < .05). With textured insoles, both groups showed significant improvements particularly in conditions requiring complex sensory integration. The OA group demonstrated marked improvement in Condition 5 (eyes closed with sway-referenced surface) with textured insoles (p = .001, d = -1.043) compared with baseline. These improvements were retained during the 3-month period without meaningful habituation effects. These findings indicate that textured insoles provide an effective intervention to improve balance control in individuals with knee OA, which may have implications for improving postural stability and sensory integration in this population.","PeriodicalId":49795,"journal":{"name":"Motor Control","volume":" ","pages":"1-17"},"PeriodicalIF":0.9,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334319","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

Real-Time External Focus of Attention Biofeedback During a Forward Hop-To-Stabilization on Dynamic Postural Stability in Individuals With Chronic Ankle Instability. 慢性踝关节不稳患者前跳稳定过程中实时外部注意力生物反馈对动态姿势稳定的影响。

IF 0.9 4区医学

Motor Control Pub Date : 2025-06-17 DOI: 10.1123/mc.2024-0124

Danielle M Torp, Matthew C Hoch, Kyle B Kosik, Ke'La H Porter, Stacey Slone, Kyeongtak Song

{"title":"Real-Time External Focus of Attention Biofeedback During a Forward Hop-To-Stabilization on Dynamic Postural Stability in Individuals With Chronic Ankle Instability.","authors":"Danielle M Torp, Matthew C Hoch, Kyle B Kosik, Ke'La H Porter, Stacey Slone, Kyeongtak Song","doi":"10.1123/mc.2024-0124","DOIUrl":"10.1123/mc.2024-0124","url":null,"abstract":"Introduction: Chronic ankle instability (CAI) is a common sequela of lateral ankle sprains that impairs postural stability during functional tasks. External biofeedback may be an appropriate rehabilitation tool to improve functional movement; however, more research is needed to determine its effectiveness in dynamic tasks in individuals with CAI. This study aimed to assess the effect of real-time external biofeedback via laser on dynamic postural stability indices during a single-limb forward hop-to-stabilization task in participants with CAI.Methods: Eighteen participants with CAI completed five successful forward hop-to-stabilization jumps with and without external biofeedback using a single-dot laser attached to the distal tibia. A single inertial measurement unit fastened to the lower back captured dynamic postural stability indices in the vertical, anterior-posterior, medial-lateral, and the resultant of each plane during the 5 s after landing. The mean difference between biofeedback and no biofeedback was assessed using independent t tests.Results: Our results indicate no significant differences were observed between forward hop-to-stabilization tasks with and without real-time external biofeedback in individuals with CAI.Discussion: More research is needed to determine the appropriate biofeedback tool location and modality type of external biofeedback in addition to the minimum amount of training exposure to improve dynamic postural stability during a single-limb landing task.","PeriodicalId":49795,"journal":{"name":"Motor Control","volume":" ","pages":"1-12"},"PeriodicalIF":0.9,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334318","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

Applied Aspects of Contemporary Motor Control Theories: A Natural Science Perspective. 当代运动控制理论的应用方面：自然科学的观点。

IF 0.9 4区医学

Motor Control Pub Date : 2025-06-10 DOI: 10.1123/mc.2025-0004

Mark L Latash

{"title":"Applied Aspects of Contemporary Motor Control Theories: A Natural Science Perspective.","authors":"Mark L Latash","doi":"10.1123/mc.2025-0004","DOIUrl":"10.1123/mc.2025-0004","url":null,"abstract":"The review is based on theoretical advances in the field of motor control that view the neural control of movements as a subfield of natural science. We accept the theory of hierarchical control of movements with basic commands, reciprocal, and coactivation, at different levels of the hierarchy, from the control of whole-body actions to the control of individual joints and digits. The principle of abundance views the numerous elements participating in all actions as an important feature that allows movements to combine dynamical stability with adaptability. This principle is readily compatible with the uncontrolled manifold hypothesis. These concepts have been applied to analysis of consequences of fatigue, natural aging, and a range of neurological disorders, from large-fiber peripheral neuropathy to brain disorders. Mechanisms of rehabilitation of movement disorders and improvement of motor performance are discussed. Important pieces of information are missing in the described theoretical frameworks in particular those related to mapping between the theoretical levels of control and coordination and neurophysiological circuitry. New directions of studies are sketched that may lead to progress in understanding applied aspects of motor control.","PeriodicalId":49795,"journal":{"name":"Motor Control","volume":" ","pages":"1-38"},"PeriodicalIF":0.9,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334316","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

Toe Grip Functionality as a Prerequisite of Vertical Jumping Skills in Children: A Longitudinal Study of Preschool Motor Development. 脚尖抓握功能是儿童垂直跳跃技能的先决条件：学龄前运动发展的纵向研究。

IF 0.9 4区医学

Motor Control Pub Date : 2025-06-09 DOI: 10.1123/mc.2023-0155

Aileen Kotzsch, Andy Papke, Angela Heine

{"title":"Toe Grip Functionality as a Prerequisite of Vertical Jumping Skills in Children: A Longitudinal Study of Preschool Motor Development.","authors":"Aileen Kotzsch, Andy Papke, Angela Heine","doi":"10.1123/mc.2023-0155","DOIUrl":"10.1123/mc.2023-0155","url":null,"abstract":"The capacity to execute vertical jumps is an important motor skill that constitutes a basic requirement not only for many athletic activities but also for coping with everyday demands. As a relatively complex motor pattern, jumping develops considerably during the preschool years. Interestingly, the available literature on prerequisites for the vertical jump to develop is scarce, with only a few studies investigating the role of foot development in children's changing jumping skills. The present study aims to shed light on the role of foot development in vertical jumping skills of preschoolers. The assessment of relevant aspects of motor development in a group of 463 children at four annual measurement points (mean age at first measurement, t1: 3.49 ± 0.26 years) provided the basis for the present longitudinal study of toe grip functionality in relation to the capacity to execute vertical jumps. A series of multilevel models were fitted to the data to predict children's jumping skills as measured by means of a standardized motor development test at each time point. Independent of the influences of age and body mass index, toe grip functionality as a proxy for the strength and fine motor capacities of the toes was demonstrated to be a significant predictor, both longitudinally and concurrently, of children's jumping skills at each of four measurement points. Establishing toe grip functionality at an early age in childhood as a predictor of children's later jumping skills paves the way for the design and development of intervention approaches targeting these domains of motor development.","PeriodicalId":49795,"journal":{"name":"Motor Control","volume":" ","pages":"1-19"},"PeriodicalIF":0.9,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334320","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 Medication and Freezing of Gait on Rambling and Trembling in Quiet Standing in Individuals With Parkinson's Disease. 药物治疗和步态冻结对帕金森病患者安静站立时乱走和颤抖的影响。

IF 0.9 4区医学

Motor Control Pub Date : 2025-03-14 Print Date: 2025-04-01 DOI: 10.1123/mc.2024-0063

Layla Cupertino, Felipe Marrese Bersotti, Thayna Magalhães Novaes, Luis Mochizuki, Solaiman Shokur, Mohamed Bouri, Fabio Augusto Barbieri, Daniel Boari Coelho

{"title":"Effect of Medication and Freezing of Gait on Rambling and Trembling in Quiet Standing in Individuals With Parkinson's Disease.","authors":"Layla Cupertino, Felipe Marrese Bersotti, Thayna Magalhães Novaes, Luis Mochizuki, Solaiman Shokur, Mohamed Bouri, Fabio Augusto Barbieri, Daniel Boari Coelho","doi":"10.1123/mc.2024-0063","DOIUrl":"10.1123/mc.2024-0063","url":null,"abstract":"Background: Individuals with Parkinson's disease (PD) with freezing of gait (FoG) exhibit difficulty with changes in sensory input, indicating a potential sensorimotor integration deficit. Understanding how levodopa impacts balance particularly in FoG, is critical. As traditional postural sway measures may not fully capture the complexity of balance control, rambling and trembling decomposition of the center of pressure allows a more detailed assessment of postural control by distinguishing between supraspinal and spinal contributions, offering insights into sensorimotor integration deficits. This study aims to analyze the effects of medication and FoG on rambling and trembling in quiet standing in individuals with PD.Methods: We analyzed 13 individuals with PD with FoG (PD freezers) and 19 individuals with PD without FoG (PD nonfreezers) while quiet standing on a rigid and malleable surface under (ON) and without (OFF) dopaminergic medication. Area, root mean square, and mean velocity were calculated for rambling and trembling trajectory.Results: For the rambling, all variables were significantly higher on the malleable compared with the rigid surface. For trembling, (a) all variables were higher on the malleable compared with the rigid surface (p < .001), and (b) area and medial-lateral root mean square were significantly higher ON compared with OFF medication for both groups of participants similarly.Conclusion: Our results strengthen the evidence that PD freezers have the same postural sway in quiet posture as PD nonfreezers, using similar mechanisms to control the posture. In addition, levodopa influences spinal mechanisms more than supraspinal ones in individuals with PD in quiet standing.","PeriodicalId":49795,"journal":{"name":"Motor Control","volume":" ","pages":"202-214"},"PeriodicalIF":0.9,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634890","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 Task Difficulty on Postural Control During a Combined Gait Termination and Manual Task. 任务难度对联合步态终止和手动任务中姿势控制的影响。

IF 0.9 4区医学

Motor Control Pub Date : 2025-03-13 Print Date: 2025-04-01 DOI: 10.1123/mc.2024-0081

Hwigeum Jeong, Samuel Carey, Richard Van Emmerik

{"title":"Effects of Task Difficulty on Postural Control During a Combined Gait Termination and Manual Task.","authors":"Hwigeum Jeong, Samuel Carey, Richard Van Emmerik","doi":"10.1123/mc.2024-0081","DOIUrl":"10.1123/mc.2024-0081","url":null,"abstract":"Task difficulty is a major factor that affects postural control and stability. However, there is little information about the effects of task difficulty on postural control during gait termination in combination with a manual task. The present study investigated postural control during combined gait termination and a manual task with different levels of manual task difficulty. Right-handed, healthy young adults (n = 15) performed five trials of combined gait termination with a manual fitting task for each of four different manual task conditions, varying target size (large and small) and distance (short and long). Average time-to-contact of the center of pressure and upper body (sternum) was assessed in three separate phases of the combined task: preparation, reaching, and stabilization phases. Longer reaching distance reduced time-to-contact not only in the reaching phase but also in both the preparation and stabilization phases. However, there were no effects of target size on time-to-contact. These results indicate that increasing manual task demands requires integration throughout gait termination and can impact postural stabilization after task completion even in young healthy adults.","PeriodicalId":49795,"journal":{"name":"Motor Control","volume":" ","pages":"183-201"},"PeriodicalIF":0.9,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143626544","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

Tall Tales of Balance: The Influence of Height on Postural Control Measures. 平衡的荒诞故事：高度对姿势控制措施的影响。

IF 0.9 4区医学

Motor Control Pub Date : 2025-03-12 Print Date: 2025-04-01 DOI: 10.1123/mc.2024-0132

Kevin D Dames, Sutton B Richmond

{"title":"Tall Tales of Balance: The Influence of Height on Postural Control Measures.","authors":"Kevin D Dames, Sutton B Richmond","doi":"10.1123/mc.2024-0132","DOIUrl":"10.1123/mc.2024-0132","url":null,"abstract":"Background: Increased sway within a stationary base of support (BoS) is often interpreted as worse postural control. However, larger persons may have larger feet, facilitating broader sway patterns within their wider/longer base. Time to boundary (TtB) incorporates foot placement dimensions into the calculation and, thus, may not be confounded by dissimilar anthropometric features.Methods: Ninety-seven healthy adults stood quietly on a force platform for 150 s with their feet together while barefoot. BoS characteristics, center of pressure motion, and TtB were calculated and correlated with body height for eyes open and closed conditions.Results: BoS width, length, and total area positively correlated with body height. Path length and sway area were positively correlated with height for both vision conditions, with stronger correlations observed with eyes closed. At the same time, TtB was not correlated with height in either visual condition. Consequently, the tallest 20 individuals in the sample displayed greater path length and sway areas but equal TtB as the shortest 20 persons.Conclusion: Observed differences in position-based center of pressure measures could be an artifact of body size inequality not postural (in)stability. Meanwhile, TtB is normalized to BoS and is, therefore, not confounded by anthropometric differences.","PeriodicalId":49795,"journal":{"name":"Motor Control","volume":" ","pages":"173-182"},"PeriodicalIF":0.9,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143616699","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

Cross-Disciplinary Communication and Evolving Language: A Comment on Latash. 跨学科交际与语言的演变——拉塔什述评。

IF 0.9 4区医学

Motor Control Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0123

Hannah J Block, Kess L Folco, Reshma Babu, Manasi Wali, Bashir S Isa, Maner Wang

引用次数: 0

Recognizing Context, Embracing Jargon, and Learning From Linguists: A Commentary on "Useful and Useless Misnomers in Motor Control". 识别语境，拥抱行话，向语言学家学习——“运动控制中有用与无用的误称”述评。

IF 0.9 4区医学

Motor Control Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0126

Bailey Uitz, Mathew Yarossi, Eugene Tunik

引用次数: 0