Jin Naijing, Tian Jie, Li Yue, Mi Jing
Sports Coaching College, Beijing Sport University, Beijing, China.
Sports Department, Shenzhen Institute of Information Technology, Shenzhen, China.
Front Physiol. 2022 Apr 25;13:881927. doi: 10.3389/fphys.2022.881927. eCollection 2022.
This study aimed to investigate whether the heart rate variability index (TL) during five ball-drills could be used to quantify training load (TL) in collegiate basketball players. Ten elite male college basketball athletes (18.2 ± 0.4 years) were recruited to perform five ball-drills (1V1, 2V2, 3V3, 4V4, and 5V5) which lasted 10 min and varied in intensity. During each drill, TL, training impulse (TRIMP), rating of perceived exertion (RPE), speed, and distance were recorded by Firstbeat, Foster's RPE scale, and SiMi Scout. The correlation (Spearman's and Pearson's correlation coefficient), reliability (intra-class correlation coefficient, ICC), and agreement (Bland-Altman plots) among TL, TRIMP, RPE, speed, and distance were examined. TL was significantly correlated with TRIMP (r = 0.34, = 0.015) and RPE (r = 0.42, = 0.002). TL was significantly correlated with training intensity (r = 0.477, = 0.006) but not with volume (r = 0.272, = 0.056). TL and TRIMP, RPE showed significant intraclass relationships (ICC = 0.592, = 0.0003). Moreover, TL differentiated basketball drills of equal volume and varying intensity. We concluded that TLmay serve as an objective and rational measure to monitor TL in basketball players.
本研究旨在调查五项篮球训练中的心率变异性指数（TL）是否可用于量化大学生篮球运动员的训练负荷（TL）。招募了10名精英男子大学篮球运动员（18.2±0.4岁）进行五项篮球训练（1对1、2对2、3对3、4对4和5对5），每项训练持续10分钟，强度各异。在每次训练期间，通过Firstbeat、福斯特主观用力程度量表和SiMi Scout记录训练负荷（TL）、训练冲量（TRIMP）、主观用力感觉等级（RPE）、速度和距离。检验了TL、TRIMP、RPE、速度和距离之间的相关性（斯皮尔曼和皮尔逊相关系数）、可靠性（组内相关系数，ICC）和一致性（布兰德-奥特曼图）。TL与TRIMP显著相关（r = 0.34，P = 0.015），与RPE也显著相关（r = 0.42，P = 0.002）。TL与训练强度显著相关（r = 0.477，P = 0.006），但与训练量无关（r = 0.272，P = 0.056）。TL与TRIMP、RPE显示出显著的组内关系（ICC = 0.592，P = 0.0003）。此外，TL能够区分训练量相同但强度不同的篮球训练。我们得出结论，TL可能是监测篮球运动员训练负荷的一种客观且合理的指标。
