前瞻性和补偿性的姿势调整,以响应动态平台的扰动,在一个向前的步骤。

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Yun Wang, Kazuhiko Watanabe, Tadayoshi Asaka
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引用次数: 3

摘要

我们研究了预期(APAs)和补偿性姿势调整(cpa)的产生,以准备在支撑面扰动期间的一个步骤。躯干节段预期肌激活的变化主要发生在-600 ~ -400 ms至脚离时的共收缩指数中。在APA间隔内,小腿肌肉的倒数指数明显。在CPA间歇期,与APA间歇期相比,检测到更大的肌肉互反活动。结果表明,在APA和CPA间隔期间,被试的体位肌肉的互反和共收缩激活共同变化以抵消扰动并产生足够的机械效应。本研究加深了我们对APAs和cpa在平衡维持中的相互作用的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Anticipatory and Compensatory Postural Adjustments in Response to Dynamic Platform Perturbation during a Forward Step.

We investigated the generation of anticipatory (APAs) and compensatory postural adjustments (CPAs) in preparation for a step during support surface perturbation. Changes in anticipatory muscle activation in the trunk segment were predominantly in the co-contraction indices from -600 t0 -400 ms to foot-off. Reciprocal indices of the shank muscles were pronounced in the APA intervals. During the CPA intervals, larger reciprocal muscle activities were detected compared to the APA intervals. The results showed subjects co-varied the reciprocal and co-contraction activations in postural muscles to counteract the perturbation and generate mechanical effects sufficient for stepping during the APA and CPA intervals. This study enhances our understanding of the interaction between the APAs and CPAs in balance maintenance.

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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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