Faculty of Physical Activity and Sport. San Antonio Catholic University Campus de Los Jerónimos, Guadalupe, Spain.
J Hum Kinet. 2012 Jun;33:45-53. doi: 10.2478/v10078-012-0043-3. Epub 2012 Jul 4.
The main objective of this study was to analyze the motor variability in the performance of the tennis serve and its relationship to performance outcome. Seventeen male tennis players took part in the research, and they performed 20 serves. Linear and non-linear variability during the hand movement was measured by 3D Motion Tracking. Ball speed was recorded with a sports radar gun and the ball bounces were video recorded to calculate accuracy. The results showed a relationship between the amount of variability and its non-linear structure found in performance of movement and the outcome of the serve. The study also found that movement predictability correlates with performance. An increase in the amount of movement variability could affect the tennis serve performance in a negative way by reducing speed and accuracy of the ball.
本研究的主要目的是分析网球发球表现中的运动可变性及其与表现结果的关系。17 名男性网球运动员参与了这项研究，他们完成了 20 次发球。通过 3D 运动跟踪测量手运动过程中的线性和非线性可变性。球速用运动雷达枪记录，球弹起用视频记录以计算准确性。结果表明，运动表现中的可变性及其非线性结构与发球结果之间存在关系。研究还发现，运动的可预测性与表现相关。运动可变性的增加可能会通过降低球速和准确性来对网球发球表现产生负面影响。
