Either Autonomy Support or Enhanced Expectancies Delivered Via Virtual-Reality Benefits Frontal-Plane Single-Leg Squatting Kinematics.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-24 DOI:10.1177/00315125241246361

Jennifer A. Hogg, Gary B. Wilkerson, Shellie N. Acocello, Bryan R Schlink, Yu Liang, Dalei Wu, Gregory D Myer, Jed A. Diekfuss

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Abstract

Our purpose in this study was to determine the effects of a virtual reality intervention delivering specific motivational motor learning manipulations of either autonomy support (AS) or enhanced expectancies (EE) on frontal plane single-leg squatting kinematics. We allocated 45 participants (21 male, 24 female) demonstrating knee, hip, and trunk frontal plane mechanics associated with elevated anterior cruciate ligament injury risk to one of three groups (control, AS, or EE). Participants mimicked an avatar performing five sets of eight repetitions of exemplary single-leg squats. AS participants were given the added option of choosing the color of their avatar. EE participants received real-time biofeedback in the form of green highlights on the avatar that remained on as long as the participant maintained pre-determined 'safe' frontal plane mechanics. We measured peak frontal plane knee, hip, and trunk angles before (baseline) and immediately following (post) the intervention. The control group demonstrated greater increases in knee abduction angle (Δ = +2.3°) than did the AS (Δ = +0.1°) and EE groups (Δ = -0.4°) (p = .003; η2p = .28). All groups demonstrated increased peak hip adduction (p = .01, ηp2 = .18) (control Δ = +1.5°; AS Δ = +3.2°; EE Δ = +0.7°). Hip adduction worsened in all groups. AS and EE motivation strategies appeared to mitigate maladaptive frontal plane knee mechanics.

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通过虚拟现实技术提供的自主支持或增强的期望值都有利于正面单腿下蹲运动学。

我们这项研究的目的是确定虚拟现实干预的效果，这种干预提供了自主支持（AS）或增强期望（EE）的特定动机运动学习操作，对正面单腿深蹲运动学有影响。我们将 45 名表现出与前十字韧带损伤风险升高有关的膝关节、髋关节和躯干前平面力学的参与者（21 名男性，24 名女性）分配到三个组（对照组、AS 组或 EE 组）中的一组。参与者模仿头像进行五组八次的示范性单腿深蹲。AS 组的参与者还可以选择头像的颜色。EE 参与者的头像上会出现绿色亮点，只要参与者保持预先设定的 "安全 "额平面力学状态，这些亮点就会一直亮着，从而接收到实时生物反馈。我们测量了干预前（基线）和干预后（后）的膝关节、髋关节和躯干正面角度峰值。与 AS 组（Δ = +0.1°）和 EE 组（Δ = -0.4°）相比，对照组膝关节外展角度（Δ = +2.3°）的增加幅度更大（p = .003；η2p = .28）。所有组的髋关节内收峰值都有所增加（p = .01; ηp2 = .18）（对照组 Δ = +1.5°; AS Δ = +3.2°; EE Δ = +0.7°）。所有组别的髋关节内收情况都有所恶化。AS和EE激励策略似乎减轻了不适应的前平面膝关节力学。

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

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.