青少年足球运动员赛季前内部训练负荷与表现变化之间的剂量-反应关系。
Dose-Response Relationship Between Internal Training Load and Changes in Performance During the Preseason in Youth Soccer Players.
机构信息
Department of Physical Education, State University of Maringa, Maringa, Brazil.
Department of Sport, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil ; and.
出版信息
J Strength Cond Res. 2021 Aug 1;35(8):2294-2301. doi: 10.1519/JSC.0000000000003126.
Figueiredo, DH, Figueiredo, DH, Moreira, A, Gonçalves, HR, and Dourado, AC. Dose-response relationship between internal training load and changes in performance during the preseason in youth soccer players. J Strength Cond Res 35(8): 2294-2301, 2021-The aim of this study was to describe training intensity distribution based on the session rating of perceived exertion (sRPE) and heart rate (HR) methods and examine the dose-response relation between internal training load (ITL) and change in performance of 16 youth soccer players (mean ± SD age: 18.75 ± 0.68 years, height: 175.3 ± 5.5 cm, body mass: 68.7 ± 6.5 kg, and body fat: 10.7 ± 1.2%) belonging to a Brazilian first division team during a 3-week preseason. The sRPE and HR data were registered daily to calculate the ITL and the training intensity distribution, in 3 intensity zones (low, moderate, and high). The Yo-yo Intermittent Recovery Level 1 (Yo-yo IR1) was evaluated before and after experimental period. The total time spent in the low-intensity zone (HR method) was greater (p < 0.01) compared with the moderate- and high-intensity zones. No difference was observed between training intensity zones determined by the sRPE method (p > 0.05). Negative correlations were observed between weekly mean sRPE-TL (r = -0.69), Edward's-TL (r = -0.50), and change in Yo-yo IR1. Linear regression indicated that weekly mean sRPE-TL (F1;14 = 13.3; p < 0.01) and Edward's-TL (F1;14 = 4.8; p < 0.05) predicted 48.7 and 25.5% of the variance in performance change, respectively. Stepwise linear regression revealed that these 2-predictor variables (F2;13 = 18.9; p < 0.001) explained 74.5% of the variance in performance change. The results suggest that the sRPE and HR methods cannot be used interchangeably to determine training intensity distribution. Moreover, sRPE-TL seems to be more effective than the HR-based TL method to predict changes in performance in youth soccer players.
菲格雷多，DH，菲格雷多，DH，莫雷拉，A，贡萨尔维斯，HR，和杜阿尔特，AC。青年足球运动员赛前训练负荷与表现变化之间的剂量-反应关系。J 力量与调节研究 35(8)：2294-2301，2021-本研究的目的是描述基于感觉运动评估 (sRPE) 和心率 (HR) 方法的训练强度分布，并检查青年足球运动员内部训练负荷 (ITL) 与 16 名青年足球运动员表现变化之间的剂量-反应关系（平均±标准差年龄：18.75±0.68 岁，身高：175.3±5.5cm，体重：68.7±6.5kg，体脂：10.7±1.2%）属于巴西甲级联赛球队在为期 3 周的赛前期间。sRPE 和 HR 数据每天都有记录，以计算 ITL 和训练强度分布，分为 3 个强度区（低、中、高）。在实验前和实验后评估了 Yo-yo 间歇性恢复水平 1（Yo-yo IR1）。使用 HR 方法时，低强度区的总时间（HR 方法）大于（p<0.01）中高强度区。使用 sRPE 方法确定的训练强度区之间没有差异（p>0.05）。每周平均 sRPE-TL（r=-0.69）、爱德华氏 TL（r=-0.50）和 Yo-yo IR1 变化之间存在负相关。线性回归表明，每周平均 sRPE-TL（F1;14=13.3；p<0.01）和爱德华氏 TL（F1;14=4.8；p<0.05）分别预测了表现变化的 48.7%和 25.5%。逐步线性回归显示，这两个预测变量（F2;13=18.9；p<0.001）解释了表现变化的 74.5%。结果表明，sRPE 和 HR 方法不能互换使用来确定训练强度分布。此外，sRPE-TL 似乎比基于 HR 的 TL 方法更有效地预测青年足球运动员的表现变化。
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