Acceleration profile of high-impact movements during young football games: a cross-sectional study involving healthy children
Acceleration profile of high-impact movements during young football games: a cross-sectional study involving healthy children
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青少年足球比赛中高冲击力运动的加速曲线：一项涉及健康儿童的横断面研究
DOI：
10.1080/14763141.2021.1970796
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发表时间：
2021
影响因子：
2.2
通讯作者：
Ichikawa Hiroshi
中科院分区：
文献类型：
--
作者：
Sasaki Shogo;Nagano Yasuharu;Suganuma Yusaku;Koyama Takeshi;Ichikawa Hiroshi
重复的高强度运动导致儿童的生长相关损伤。这项研究旨在确定青少年足球比赛中哪些动作需要6g和8g的加速度，以及它们发生的频率。此外，我们比较了运动之间的加速度组成和bbb8g的合成加速度。11名年轻男子足球运动员（10.7±0.4岁）在他们的上背部佩戴三轴加速度计进行8人制比赛。计算产生>6 G和>8 G的动作次数和频率，并使用双向方差分析比较前5个项目的每个指令加速度，以检验动作的效果。青少年足球比赛中产生>6 G和>8 G加速度的运动频率分别为8.70例/min和2.62例/min。bbbb8g运动中排名前五的是刹车和预刹车，分别是洗牌、减速、停车和跑/慢跑项目。踏步运动中制动时的垂直加速度显著大于减速、停止和跑/慢跑时，踏步运动中停止和预制动时的垂直加速度也显著大于跑/慢跑时的垂直加速度。这项初步研究表明，减速运动主要引起高冲击情况，可能是防止青少年足球运动员过度使用损伤的关键动作。
Repetitive high-impact movements cause growth-related injuries in children. This study aimed to identify which movements during junior football games require >6 G and >8 G acceleration and the frequency at which they occur. Additionally, we compared the components of acceleration among movements with >8 G resultant acceleration. Eleven young male footballers (10.7 ± 0.4 years) played 8-a-side games while wearing a tri-axial accelerometer on their upper back. The number and frequency of the movements that generated >6 G and >8 G were calculated, and each directive acceleration of the top five items was compared using two-way ANOVA to examine the effect of movements. The frequency of movements that generated >6 G and >8 G acceleration during junior football games was 8.70 case/min and 2.62 case/min, respectively. The top five >8 G movements were braking and pre-braking in shuffle, slowdown, stop, and run/jog items. The vertical acceleration was significantly greater during braking in shuffle than during slowdown, stop, and run/jog and also greater during stop and pre-braking in shuffle than during run/jog movement. This pilot study suggests that decelerated movements mainly provoked high-impact situations and may be key actions for preventing overuse injury in young footballers.