Furuya Ryosuke, Dimic Milos, Vogt Tobias, Kanosue Kazuyuki, Nakata Hiroki
Graduate school of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan.
Institute of Professional Sport Education and Sport Qualifications, German Sport University Cologne, Cologne, Germany.
PLoS One. 2025 Jun 24;20(6):e0326608. doi: 10.1371/journal.pone.0326608. eCollection 2025.
In tennis, the ability to hit groundstrokes accurately to a target area on the court is important. It is a common belief in tennis coaching that greater concentration leads to more accurate targeting. The purpose of this study was to test this belief by evaluating the variability of the ball-landing position when hitting toward target areas of different sizes and locations. Ten male top-level college tennis players performed forehand strokes and aimed at four target areas: 1) a short area (Short) between the service line and baselines, and 2) a deep area (Deep) just inside the baseline, both with an identical target size (22 m); and 3) a large area (Big, 24 m), and 4) a small area (Small, 1*1m), both centered in the same location. The average ball-landing position, standard deviation (SD), and bivariate variable error (BVE) were calculated. SD and BVE were normalized relative to the distance between the player and center of the target area. SD in the depth direction (net-baseline direction) was significantly smaller in Short than Deep, but the normalized SDs showed no difference. SD in Big was not significantly different from that in Small, suggesting that it is inherently difficult even for advanced tennis players to intentionally control the distribution of their ball-landing positions.
在网球运动中，能够准确地将击球打到球场上的目标区域非常重要。网球教练中普遍认为，更高的专注力会带来更准确的目标瞄准。本研究的目的是通过评估向不同大小和位置的目标区域击球时球落点位置的变异性来检验这一观点。十名男性顶级大学网球运动员进行正手击球，并瞄准四个目标区域：1）发球线和底线之间的短区域（Short），以及2）刚好在底线内的深区域（Deep），两者目标大小相同（2×2米）；以及3）一个大区域（Big，2×4米）和4）一个小区域（Small，1×1米），两者都位于同一位置的中心。计算了平均球落点位置、标准差（SD）和双变量误差（BVE）。SD和BVE相对于球员与目标区域中心之间的距离进行了归一化处理。短区域（Short）在深度方向（球网 - 底线方向）的SD显著小于深区域（Deep），但归一化后的SD没有差异。大区域（Big）的SD与小区域（Small）的SD没有显著差异，这表明即使对于高水平的网球运动员来说，有意控制球落点位置的分布本质上也是困难的。
