精英青年足球运动员在密集赛程和常规赛程中的工作率特征是否存在差异？
Are There Differences in Elite Youth Soccer Player Work Rate Profiles in Congested vs. Regular Match Schedules?
机构信息
Department of Sport, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil.
Red Bull Brazil, Campinas, Brazil.
出版信息
J Strength Cond Res. 2021 Feb 1;35(2):473-480. doi: 10.1519/JSC.0000000000002702.
Zanetti, V, Carling, C, Aoki, MS, Bradley, PS, and Moreira, A. Are there differences in elite youth soccer player work rate profiles in congested vs. regular match schedules? J Strength Cond Res 35(2): 473-480, 2021-Official international tournaments in which youth soccer players participate can involve very congested schedules. Yet, no information regarding physical and technical match performance during congested vs. regular (noncongested) cycles is available. In this study, accelerations, decelerations, mean metabolic power (MP), and technical performance (offensive and defensive variables) were compared across very congested match (VCM; 10 international matches played over 3 successive days, including 2 days with 2 consecutive matches separated by a 4- to 5-hour interval) and 10 regular (noncongested match [NCM]) match periods in elite male Under 15 (U15, n = 11) and Under 17 (U17, n = 13) soccer players. Players wore a 15-Hz Global Positioning System unit with a 100-Hz triaxial accelerometer. The session rating of perceived exertion (RPE) were assessed 30 minutes after match. Results showed a higher number of accelerations per minute observed in VCM vs. NCM (U15; 2.27 ± 0.35 vs. 2.12 ± 0.23; effect size [ES] = 0.49; U17; 2.27 ± 0.41 vs. 2.01 ± 0.31; ES = 0.69). Decelerations per minute were higher during VCM (U15; 1.99 ± 0.27 vs. 1.84 ± 0.25; ES = 0.55; and U17; 1.98 ± 0.35 vs. 1.80 ± 0.27; ES = 0.56). Mean MP was higher in the VCM (U15; 0.42 ± 0.06 vs. 0.37 ± 0.02; ES = 1.08; U17; 0.46 ± 0.03 vs. 0.30 ± 0.03; ES = 1.94). Technical actions per minute were higher in the VCM for U17 (ES = 1.60 and 1.37, for offensive and defensive performance, respectively) but lower (during VCM) for U15 (ES = 3.59 and 0.28, for offensive and defensive performance). U15 reported a higher session RPE in the VCM (7.9 ± 0.5 AUs vs. 6.9 ± 0.5 AUs). The findings suggest that running activity in these youth players was unaffected overall in tournaments with congested schedules, and that the intensity of match-play was actually greater than in regular match schedules.
赞内蒂、卡林、青木正司、布拉德利和莫雷拉。在密集赛程和常规赛程的比赛中，精英青年足球运动员的工作率特征是否存在差异？《力量与体能研究杂志》35（2）：473-480，2021-青年足球运动员参加的国际正式锦标赛可能赛程非常密集。然而，关于密集周期和常规（非密集）周期的身体和技术比赛表现，没有任何信息。在这项研究中，在非常密集的比赛（VCM；10 场国际比赛在连续 3 天进行，包括 2 天连续进行，两场比赛之间间隔 4-5 小时）和 10 场常规（非密集比赛[NCM]）比赛期间，对 11 名精英男 U15（U15）和 13 名 U17 足球运动员的加速、减速、平均代谢功率（MP）和技术表现（进攻和防守变量）进行了比较。球员佩戴 15Hz 的全球定位系统（GPS）单元和 100Hz 的三轴加速度计。比赛后 30 分钟评估赛中感觉用力等级（RPE）。结果表明，VCM 中每分钟的加速次数高于 NCM（U15；2.27±0.35 比 2.12±0.23；效应量[ES]为 0.49；U17；2.27±0.41 比 2.01±0.31；ES=0.69）。VCM 中每分钟的减速次数更高（U15；1.99±0.27 比 1.84±0.25；ES=0.55；U17；1.98±0.35 比 1.80±0.27；ES=0.56）。VCM 中的平均 MP 更高（U15；0.42±0.06 比 0.37±0.02；ES=1.08；U17；0.46±0.03 比 0.30±0.03；ES=1.94）。VCM 中每分钟的技术动作次数在 U17 中更高（进攻和防守表现的 ES 分别为 1.60 和 1.37），但在 U15 中较低（进攻和防守表现的 ES 分别为 3.59 和 0.28）。U15 在 VCM 中报告的赛中 RPE 更高（7.9±0.5 AU 比 6.9±0.5 AU）。研究结果表明，在赛程密集的锦标赛中，这些青年球员的跑动活动总体上不受影响，比赛的强度实际上比常规比赛赛程更大。
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