Bimanual force coordination using the vector coding approach: Quantifying coordination quantity and quality

IF 1.9 3区心理学 Q4 NEUROSCIENCES

Human Movement Science Pub Date : 2025-12-01 Epub Date: 2025-10-15 DOI:10.1016/j.humov.2025.103422

Do-Kyung Ko , Beom Jin Choi , Nyeonju Kang

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引用次数: 0

Abstract

This study aimed to investigate bimanual force coordination in 36 healthy young adults employing a vector coding method. The participants performed bimanual force control at two targeted force levels (i.e., 10 % and 40 % of maximum voluntary contraction [MVC]) and the Purdue Pegboard Test. Force accuracy was used to assess bimanual force control performance. Vector coding analysis was conducted to estimate the quantity and quality of bimanual force coordination. Further, the correlation between bimanual force coordination and bimanual dexterity was investigated. Lower force accuracy was observed at 40 % of MVC. The coordination quantity analysis revealed that left- and right-hand phases were more frequently observed at 10 % of MVC, whereas the greatest quantity of in-phase coordination was observed at 40 % of MVC. Notably, anti-phase coordination demonstrated higher quality in error correction despite its lower quantity. Moreover, a greater quantity of anti-phase coordination at 40 % of MVC was associated with superior bimanual dexterity. These results indicated that quantifying the quantity and quality of coordination using the vector coding method provides a novel framework for identifying specific motor control strategies during bimanual tasks.

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矢量编码方法下的双手力协调：协调量和协调质量的量化。

本研究采用向量编码方法对36例健康青年的双手力量协调进行了研究。参与者在两个目标力水平（即最大自愿收缩的10%和40% [MVC]）和普渡钉板测试下进行双手力控制。力精度用于评估双手力控制性能。通过矢量编码分析来估计人工力协调的数量和质量。进一步研究了双手力协调与双手灵巧度的关系。在40%的MVC中观察到较低的力精度。协调量分析显示，在10%的MVC中，更频繁地观察到左相和右相，而在40%的MVC中，观察到最多的同相协调。值得注意的是，尽管反相位配位的纠错量较少，但其纠错质量较高。此外，在40%的MVC中，更多的反相位协调与优越的双手灵巧性相关。这些结果表明，使用矢量编码方法量化协调的数量和质量为识别手动任务中的特定运动控制策略提供了一种新的框架。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Human Movement Science 医学-神经科学

CiteScore

3.80

自引率

4.80%

发文量

审稿时长

42 days

期刊介绍： Human Movement Science provides a medium for publishing disciplinary and multidisciplinary studies on human movement. It brings together psychological, biomechanical and neurophysiological research on the control, organization and learning of human movement, including the perceptual support of movement. The overarching goal of the journal is to publish articles that help advance theoretical understanding of the control and organization of human movement, as well as changes therein as a function of development, learning and rehabilitation. The nature of the research reported may vary from fundamental theoretical or empirical studies to more applied studies in the fields of, for example, sport, dance and rehabilitation with the proviso that all studies have a distinct theoretical bearing. Also, reviews and meta-studies advancing the understanding of human movement are welcome. These aims and scope imply that purely descriptive studies are not acceptable, while methodological articles are only acceptable if the methodology in question opens up new vistas in understanding the control and organization of human movement. The same holds for articles on exercise physiology, which in general are not supported, unless they speak to the control and organization of human movement. In general, it is required that the theoretical message of articles published in Human Movement Science is, to a certain extent, innovative and not dismissible as just "more of the same."