Motor Control最新文献

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

An Ecological-Dynamical Perspective on Latash's Misnomers in Motor Control. 从生态动力学角度看拉塔什在运动控制中的用词不当。

IF 0.9 4区医学

Motor Control Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0128

Raoul M Bongers, Vitor L S Profeta, Steven J Harrison

引用次数: 0

Reflecting on Emergent Behaviors, Synergies, Stiffness, and Redundancy From a Biomechanics Perspective. 从生物力学的角度反思紧急行为、协同效应、刚度和冗余。

IF 0.9 4区医学

Motor Control Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0127

Peter J Keir, Daanish M Mulla

引用次数: 0

Motor Control Needs to Build More Bridges Across Levels of Analysis. 电机控制需要在分析层次之间建立更多的桥梁。

IF 0.9 4区医学

Motor Control Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0119

Rajiv Ranganathan, Mei-Hua Lee, Chandramouli Krishnan

引用次数: 0

A Commentary on Latash: "Useful and Useless Misnomers in Motor Control". 评论拉塔什：“电机控制中有用和无用的用词不当”。

IF 0.9 4区医学

Motor Control Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0125

Grace Niyo, Francisco J Valero-Cuevas

引用次数: 0

Exactness as the Universal Currency of Research in Natural Science. 精确性是自然科学研究的通用货币。

IF 0.9 4区医学

Motor Control Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0130

Mark L Latash

引用次数: 0