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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 Q4 NEUROSCIENCES
Motor Control
Pub Date : 2025-03-12 Print Date: 2025-04-01 DOI: 10.1123/mc.2024-0132
Kevin D Dames, Sutton B Richmond

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.

背景：在固定的支撑基础（BoS）内增加的摇摆通常被解释为更差的姿势控制。然而，体型较大的人可能有更大的脚，在他们更宽/更长的基础上促进更广泛的摆动模式。边界时间（TtB）将脚放置尺寸纳入计算，因此可能不会被不同的人体测量特征混淆。方法：97名健康成人，赤脚，双脚并拢，静立在用力台上150 s。计算睁眼和闭眼条件下的BoS特征、压心运动和TtB与身高的相关性。结果：BoS宽度、长度、总面积与体高呈正相关。在两种视觉条件下，路径长度和摇摆面积与高度呈正相关，闭上眼睛的相关性更强。同时，在两种视觉条件下，TtB均与身高无关。因此，样本中最高的20个人显示出更大的路径长度和摆动面积，但与最矮的20个人相同。结论：体位压力中心测量的差异可能是体型不平等的产物，而不是体位稳定性的产物。同时，TtB归一化为BoS，因此不受人体测量差异的影响。
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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 Q4 NEUROSCIENCES
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
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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 Q4 NEUROSCIENCES
Motor Control
Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0126
Bailey Uitz, Mathew Yarossi, Eugene Tunik
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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 Q4 NEUROSCIENCES
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
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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 Q4 NEUROSCIENCES
Motor Control
Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0127
Peter J Keir, Daanish M Mulla
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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 Q4 NEUROSCIENCES
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
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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 Q4 NEUROSCIENCES
Motor Control
Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0125
Grace Niyo, Francisco J Valero-Cuevas
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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 Q4 NEUROSCIENCES
Motor Control
Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0130
Mark L Latash
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引用次数: 0
Terms Are Tools in Biological Motor Control. 术语是生物运动控制的工具。
IF 0.9 4区 医学 Q4 NEUROSCIENCES
Motor Control
Pub Date : 2024-12-23 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0122
Sasha Reschechtko, J Andrew Pruszynski
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引用次数: 0
Useful and Useless Misnomers in Motor Control. 电机控制中有用和无用的误称。
IF 0.9 4区 医学 Q4 NEUROSCIENCES
Motor Control
Pub Date : 2024-12-20 Print Date: 2025-01-01 DOI: 10.1123/mc.2024-0082
Mark L Latash

This article addresses the issue of using terms and concepts in motor control that are ill-defined, undefined, and/or imported from nonbiological fields. In many of such cases, the discourse turns nonscientific and unproductive. Some of such terms are potentially useful but need to be properly and exactly defined. Other terms seem to be misleading and nonfixable. There is also an intermediate group with terms that may or may not be useful if defined properly. The paper presents three examples per group: "reflex," "synergy," and "posture" versus "motor program," "efference copy," and "internal model" versus "muscle tone," "stiffness and impedance," and "redundancy." These terms are analyzed assuming that motor control is a branch of natural science, which must be analyzed using laws of nature, not a subfield of the control theory. In the discussion, we also accept the framework of the theory of movement control with spatial referent coordinates as the only example built on laws of nature with clearly formulated physical and physiological nature of the control parameters.

本文解决了在运动控制中使用术语和概念的问题，这些术语和概念定义不清，未定义和/或从非生物领域引入。在许多这样的情况下，话语变得不科学和无效。其中一些术语可能有用，但需要正确和准确地定义。其他术语似乎具有误导性和不可修正性。还有一个中间组，其中的术语如果定义得当，可能有用，也可能没用。本文每组给出三个例子：“反射”、“协同”和“姿势”与“运动程序”、“引用复制”和“内部模型”与“肌肉张力”、“刚度和阻抗”和“冗余”。这些术语的分析假设运动控制是自然科学的一个分支，必须使用自然定律来分析，而不是控制理论的子领域。在讨论中，我们也接受具有空间参考坐标的运动控制理论框架作为建立在自然规律上的唯一例子，并明确制定了控制参数的物理和生理性质。
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引用次数: 0
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