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3D feedback and observation for motor learning: Application to the roundoff movement in gymnastics

机译：电机学习的3D反馈和观察：在体操中的围绕运动中的应用

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In this paper, we assessed the efficacy of different types of visual information for improving the execution of the roundoff movement in gymnastics. Specifically, two types of 3D feedback were compared to a 3D visualization only displaying the movement of the expert (observation) as well as to a more 'traditional' video observation. The improvement in movement execution was measured using different methods, namely subjective evaluations performed by official judges, and more 'quantitative appraisals based on time series analyses. Video demonstration providing information about the expert and 3D feedback (i.e., using 3D representation of the movement in monoscopic vision) combining information about the movement of the expert and the movement of the learner were the two types of feedback giving rise to the best improvement of movement execution, as subjectively evaluated by judges. Much less conclusive results were obtained when assessing movement execution using quantification methods based on time series analysis. Correlation analyses showed that the subjective evaluation performed by the judges can hardly be predicted/explained by the 'more objective' results of time series analyses.
机译：在本文中，我们评估了不同类型的视觉信息，以改善体操中的循环运动的执行的功效。具体地，将两种类型的3D反馈与仅显示专家（观察）的移动以及更具“传统”视频观察的3D可视化进行了比较。使用不同的方法测量运动执行的改善，即由官方法官进行的主观评估，以及基于时间序列分析的数量评估。视频演示提供有关专家和3D反馈的信息（即，使用单调视觉中的运动的3D表示）将关于专家的运动的信息与学习者的运动相结合，这两种类型的反馈产生了产生最佳改进的反馈移动执行，如法官的主观评估。在使用基于时间序列分析的量化方法评估运动执行时获得了更少的结论结果。相关分析表明，通过“更多客观”的时间序列分析结果，判断的主观评估几乎无法预测/解释。

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