Nikki Aitcheson-Huehn, Ryan MacPherson, Derek Panchuk, Adam W Kiefer
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引用次数: 0
摘要
静视(QE)是指在开始关键动作之前,视觉定格在目标上,这与成绩的提高有关。虽然QE是可以训练的,但目前还不清楚QE是否能直接预测成绩,这对训练干预有影响。本研究采用决策树分类方法,通过视觉运动控制变量预测篮球投篮结果(命中或不中)。12 名篮球运动员戴着移动眼动追踪眼镜,在球场上的六个位置完成了 200 次投篮。训练和测试数据集用于通过标准和条件推理决策树和随机森林对八个预测因子(投篮位置、手臂伸展时间、绝对和相对 QE 开始、偏移和持续时间)进行建模。平均而言,决策树预测了 66% 以上的成功率和 50% 以上的失误率。主要预测指标,即相对 QE 持续时间,表明持续时间超过 18.4%(范围:14.5%-22.0%)的预测成功。通过训练将 QE 持续时间延长至 18% 以上可能会提高击球成功率。
Predicting Basketball Shot Outcome From Visuomotor Control Data Using Explainable Machine Learning.
Quiet eye (QE), the visual fixation on a target before initiation of a critical action, is associated with improved performance. While QE is trainable, it is unclear whether QE can directly predict performance, which has implications for training interventions. This study predicted basketball shot outcome (make or miss) from visuomotor control variables using a decision tree classification approach. Twelve basketball athletes completed 200 shots from six on-court locations while wearing mobile eye-tracking glasses. Training and testing data sets were used for modeling eight predictors (shot location, arm extension time, and absolute and relative QE onset, offset, and duration) via standard and conditional inference decision trees and random forests. On average, the trees predicted over 66% of makes and over 50% of misses. The main predictor, relative QE duration, indicated success for durations over 18.4% (range: 14.5%-22.0%). Training to prolong QE duration beyond 18% may enhance shot success.
期刊介绍:
The Journal of Sport & Exercise Psychology (JSEP) is a peer-reviewed publication designed to stimulate and communicate research theory in all areas of sport and exercise psychology. JSEP emphasizes original research reports that advance our understanding of human behavior as it relates to sport and exercise. Comprehensive reviews employing both qualitative and quantitative methods are also encouraged, as well as brief reports of soundly designed research studies that are of special interest or importance. Areas of interest include research in social, clinical, developmental, and experimental psychology, as well as psychobiology and personality. Moreover, the terms sport and exercise may pertain to either the independent or dependent variables. Generally speaking, work on motor control processes, studies of sport as a social institution, or broader social issues are beyond the scope of JSEP. A wide variety of methods are acceptable for studying sport and exercise psychology topics.