Alonso Pérez-Chao Enrique, Gómez Miguel-Ángel, Lisboa Pedro, Trapero Juan, Jiménez Sergio L, Lorenzo Alberto
Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid, Spain.
Department of Physical Activity and Sports Science, Universidad Alfonso X el Sabio, Villanueva de la Cañada, Spain.
Front Physiol. 2022 Apr 12;13:868009. doi: 10.3389/fphys.2022.868009. eCollection 2022.
The purpose of this study was to compare external peak demands (PDs) across quarters (Q) in basketball. Thirteen elite, junior, male basketball players were monitored using electronic performance tracking systems. There were studied intervals for different time windows to determine the external PD for distance (m); player load; distance covered in four different zones; accelerations; and decelerations. A mixed linear model was run to identify differences among quarters, and the auto-correlation function was carried out to determine fluctuations across the whole game. The results showed significant differences between Q1 vs. Q2 for distance, player load, and standing-walking distance; between Q1 vs. Q3 for distance, player load, and HSR; between Q1 vs. Q4 for distance, player load, standing-walking, and HSR; and between Q3 vs. Q4 for distance and player load. These findings suggest that external PD for running-based demands (distance, player load, and high-speed running) decrease across basketball games with the most notable declines occurring between the first and fourth quarters. Nevertheless, it is important to note that non-significant differences were found between quarters for several external PD variables (jogging, running, acceleration, and deceleration) across different time windows. Findings from the present study reinforce the importance of considering specific PD variables for different functions due to the specific insight each provides.
本研究的目的是比较篮球比赛中各节的外部峰值需求（PDs）。使用电子性能跟踪系统对13名精英青少年男子篮球运动员进行了监测。研究了不同时间窗口的间隔，以确定距离（米）、运动员负荷、四个不同区域的跑动距离、加速和减速的外部PD。运行混合线性模型以识别各节之间的差异，并进行自相关函数分析以确定整个比赛中的波动情况。结果显示，第一节与第二节在距离、运动员负荷和站立行走距离方面存在显著差异；第一节与第三节在距离、运动员负荷和高速跑动方面存在显著差异；第一节与第四节在距离、运动员负荷、站立行走和高速跑动方面存在显著差异；第三节与第四节在距离和运动员负荷方面存在显著差异。这些发现表明，篮球比赛中基于跑动的需求（距离、运动员负荷和高速跑动）的外部PD会随着比赛进行而降低，最显著的下降发生在第一节和第四节之间。然而，需要注意的是，在不同时间窗口内，几个外部PD变量（慢跑、跑步、加速和减速）在各节之间未发现显著差异。本研究的结果强化了因不同功能的特定PD变量能提供特定见解而考虑这些变量的重要性。
