Fiamme Oro, Polizia di Stato, 00128 Rome, Italy.
Department of Biomedical Sciences for Health (SCIBIS), Università degli Studi di Milano, 20133 Milan, Italy.
Int J Environ Res Public Health. 2021 Feb 18;18(4):1961. doi: 10.3390/ijerph18041961.
The aim of this study was to assess the efficacy of using real-time visual feedback (VF) during a one-week balance training intervention on postural sway parameters in young karatekas. Twenty-six young male karatekas (age = 14.0 ± 2.3 years) were randomly divided into two groups: real-time VF training (VFT; = 14) and control (CTRL; = 12). Their center of pressure (COP) displacement (path length, COPpl; distance from origin, COPod) was assessed pre- and post-training on a Wii Balance Board platform in two positions (Flex: knee of the supporting leg slightly bent, maximum hip and leg flexion of the other leg; Kick: knee of the supporting leg slightly bent, mawashi-geri posture for the kicking leg). Both groups trained twice a day for seven days, performing a one-legged stance on the non-dominant limb in the Kick position. During the training, VFT received real-time VF of COP displacement, while CTRL looked at a fixed point. No interaction effect was found ( > 0.05). VFT exhibited greater changes pre- and post-training in Flex COPpl (-25.2%, = 1.5), Kick COPpl (-24.1%, = 1.3), and Kick COPod (-44.1%, = 1.0) compared to CTRL (-0.9--13.0%, -range: 0.1-0.7). It is possible that superimposing real-time VF to a week-long balance training intervention could induce a greater sport-specific balance-training effect in young karatekas.
本研究旨在评估在为期一周的平衡训练干预中使用实时视觉反馈（VF）对年轻空手道运动员姿势摆动参数的效果。26 名年轻男性空手道运动员（年龄=14.0±2.3 岁）被随机分为两组：实时 VF 训练（VFT；n=14）和对照组（CTRL；n=12）。在 Wii 平衡板平台上的两个位置（Flex：支撑腿的膝盖稍微弯曲，另一条腿的臀部和腿部最大弯曲；Kick：支撑腿的膝盖稍微弯曲，踢腿腿为马步姿势），分别在训练前后评估其足底压力中心（COP）位移（路径长度，COPpl；原点距离，COPod）。两组均在七天内每天训练两次，在 Kick 位置以非优势腿单腿站立。在训练过程中，VFT 接收实时 COP 位移 VF，而 CTRL 则注视固定点。未发现交互作用效应（>0.05）。与 CTRL（-0.9--13.0%，-范围：0.1-0.7）相比，VFT 在 Flex COPpl（-25.2%，=1.5）、Kick COPpl（-24.1%，=1.3）和 Kick COPod（-44.1%，=1.0）方面的训练前后变化更大。在为期一周的平衡训练干预中叠加实时 VF 可能会在年轻空手道运动员中产生更大的特定于运动的平衡训练效果。
