PDF(Pubmed)
Abstract：
The aim of this study was to compare internal and external load profiles of different game profile-based training (GPBT) formats among elite young football players. Twenty-one participants (age: 18.7 ± 0.6 years) performed three sessions of three GPBT formats, which were matched for training volume but structured with different high-speed running and sprint demands: i) performed along linear paths (GPBT-L); ii) performed as repetitive actions of short distance including many multi-directional changes of direction (GPBT-S) and, iii) a combination of the other two protocols, that is linear high-speed runs and sprint efforts with a single change of direction (GPBT-M). External load outputs were collected using GPS units, physiological and perceptual responses were monitored with heart rate (HR) monitors, and ratings of perceived exertion (RPE), respectively. While no differences were found between formats for HR and RPE, distinct external load profiles were observed for high-speed running (HSD) and sprint distances (SD), (GPBT-L > GPBT-M > GBPT-S, all p < 0.05), and high-intensity acceleration and deceleration efforts (HIE), (GPBT-S > GPBT-M > GPBT-L, all p < 0.05). Moreover, the GPBT-S format was characterized by greater intra-session variability for HSD, SD, and HIE (CV% = 24.2%, 16.5% and 20.4%, respectively) and inter-session variability for HSD and SD (CV% = 10% and 15.7%, respectively) compared to the other two formats. Considering their load profiles and the associated reliability scores, football practitioners can implement GPBT formats interchangeably to elicit necessary internal load responses and selectively to prioritize specific external load outputs.
摘要：
这项研究的目的是比较精英年轻足球运动员之间基于不同游戏配置文件的训练（GPBT）格式的内部和外部负荷配置文件。21名参与者（年龄：18.7±0.6岁）进行了三种GPBT格式的三场会议，匹配训练量，但具有不同的高速运行和冲刺要求：i）沿线性路径执行（GPBT-L）；ii）作为短距离的重复动作执行，包括许多多方向的方向变化（GPBT-S）和，iii)其他两个协议的组合，这是线性高速运行和冲刺努力与一个单一的方向变化（GPBT-M）。使用GPS单元收集外部负载输出，用心率（HR）监测器监测生理和知觉反应，和感知努力(RPE)的评级，分别。虽然HR和RPE的格式之间没有发现差异，观察到不同的外部负荷曲线的高速运行（HSD）和冲刺距离（SD），（GPBT-L>GPBT-M>GBPT-S，所有p<0.05)，和高强度加速和减速努力(HIE)，(GPBT-S>GPBT-M>GPBT-L,所有p<0.05)。此外，GPBT-S格式的特点是HSD的会话内变异性更大，SD,和HIE(CV%=24.2%，16.5%和20.4%，分别)和HSD和SD的会话间变异性(CV%=10%和15.7%，分别)与其他两种格式相比。考虑到它们的负载分布和相关的可靠性得分，足球从业者可以互换地实施GPBT格式，以引起必要的内部负荷响应，并有选择地优先考虑特定的外部负荷输出。
