Stevens Tom Gerardus Antonia, De Ruiter Cornelis Johannes, Beek Peter Jan, Savelsbergh Geert Jozef Peter
a Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences , Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam , Amsterdam , The Netherlands.
b Academy of Physical Education , Amsterdam University of Applied Sciences , Amsterdam , The Netherlands.
J Sports Sci. 2016;34(6):527-34. doi: 10.1080/02640414.2015.1116709. Epub 2015 Dec 2.
In order to determine whether small-sided game (SSG) locomotor performance can serve as a fitness indicator, we (1) compared 6-a-side (6v6) SSG-intensity of players varying in fitness and skill, (2) examined the relationship of the 6v6-SSG and Yo-Yo IR2 and (3) assessed the reliability of the 6v6-SSG. Thirty-three professional senior, 30 professional youth, 62 amateur and 16 professional woman football players performed 4 × 7 min 6v6-SSGs recorded by a Local Position Measurement system. A substantial subgroup (N = 113) also performed the Yo-Yo IR2. Forty-seven amateur players performed two or three 6v6-SSGs. No differences in 6v6-SSG time-motion variables were found between professional senior and professional youth players. Amateurs showed lower values than professional seniors on almost all time-motion variables (ES = 0.59-1.19). Women displayed lower high-intensity time-motion variables than all other subgroups. Total distance run during 6v6-SSG was only moderately related to Yo-Yo IR2 distance (r = 0.45), but estimated metabolic power, high speed (>14.4 km · h(-1)), high acceleration (>2 m · s(-2)), high power (>20 W · kg(-1)) and very high (35 W · kg(-1)) power showed higher correlations (r = 0.59-0.70) with Yo-Yo IR2 distance. Intraclass correlation coefficient values were higher for total distance (0.84) than other time-motion variables (0.74‒0.78). Although total distance and metabolic power during 6v6-SSG showed good reproducibility (coefficient of variation (CV) < 5%), CV was higher (8-14%) for all high-intensity time-motion variables. It was therefore concluded that standardised SSG locomotor performance cannot serve used as a valid and reliable fitness indicator for individual players.
为了确定小场地比赛（SSG）的运动表现是否可作为一种体能指标，我们：（1）比较了不同体能和技能水平球员的6人制（6v6）SSG强度；（2）研究了6v6-SSG与Yo-Yo IR2之间的关系；（3）评估了6v6-SSG的可靠性。33名职业成年、30名职业青年、62名业余和16名职业女子足球运动员进行了由局部位置测量系统记录的4组×7分钟的6v6-SSG。一个相当大的亚组（N = 113）还进行了Yo-Yo IR2测试。47名业余球员进行了两组或三组6v6-SSG。职业成年球员和职业青年球员在6v6-SSG时间-动作变量上没有差异。在几乎所有时间-动作变量上，业余球员的值都低于职业成年球员（效应量=0.59-1.19）。女性的高强度时间-动作变量低于所有其他亚组。6v6-SSG期间的总跑动距离与Yo-Yo IR2距离仅呈中等程度相关（r = 0.45），但估计代谢功率、高速（>14.4 km·h⁻¹）、高加速度（>2 m·s⁻²）、高功率（>20 W·kg⁻¹）和非常高（35 W·kg⁻¹）功率与Yo-Yo IR2距离显示出更高的相关性（r = 0.59-0.70）。组内相关系数值在总距离上更高（0.84），高于其他时间-动作变量（0.74-0.78）。尽管6v6-SSG期间的总距离和代谢功率显示出良好的重复性（变异系数（CV）<5%），但所有高强度时间-动作变量的CV更高（8-14%）。因此得出结论，标准化的SSG运动表现不能用作个体球员有效且可靠的体能指标。
