Muscle Damage During a Soccer World Cup Preparatory and Competition Period
Muscle Damage During a Soccer World Cup Preparatory and Competition Period
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DOI：
10.1123/ijspp.2019-0084
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发表时间：
2020-04-01
影响因子：
3.3
通讯作者：
Jukic, Igor
中科院分区：
文献类型：
--
作者：
Bok, Daniel;Jukic, Igor
目的：报道足球世界杯预备期和首回合期间的肌酸激酶(CK)反应，并确定有氧训练对赛后[CK]反应的影响。方法：对11名国家队队员进行问卷调查。在前3天进行乳酸阈值测试，而大多数早上(30天中有21天)抽取指尖血进行[CK]测定。单向重复测量方差分析用于确定时间对[CK]测量的影响，而皮尔逊相关系数用于评估[CK]变化与2(V2)和4mmol.L-1(V4)血乳酸浓度相关的血流速度之间的相关性。结果：[CK]浓度在比赛后第1天持续达到峰值，分别为474(261)、520(419)和460(126)u·L-1，但差异无统计学意义。[CK]浓度在比赛后第二天恢复到比赛前的值(331[201]u·L-1)。[CK]浓度在赛前和赛后的变化与v2显著相关(r=0.614，P=0.044)。结论：顶级足球运动员在正式比赛中肌肉损伤程度较低，他们在下一场比赛之前就会恢复。赛后肌肉损伤在有氧耐力较高的球员中更大，因为这种体能素质使他们能够进行高强度的活动，这是肌肉损伤的主要原因。
Purpose: To report creatine kinase ([CK]) responses during a soccer World Cup preparatory and first-leg period and to determine the influence of aerobic fitness on postmatch [CK] responses. Methods: Eleven national-team players were analyzed in this study. A lactate threshold test was performed during the first 3 d, whereas fingertip blood was drawn most mornings (21 out of 30 d) for [CK] measurements. One-way repeated-measures analysis of variance was used for determining the effect of time on [CK] measurements, whereas Pearson correlation coefficient was used for assessing associations between the changes in [CK] and velocities associated with blood lactate concentrations of 2 (v2) and 4 mmol.L-1 (v4). Results: Peak [CK] concentrations were consistently reached on the first day after the match with values of 474 (261), 520 (419), and 460 (126) U.L-1 but with no significant differences between them. [CK] concentrations returned to prematch values (331 [201] U.L-1) on the second day after the match. The change in [CK] concentration between prematch and postmatch day was largely correlated (r= .614, P= .044) with v2. Conclusions: Top-level soccer players display low levels of muscle damage during official tournaments, and they recover before the next match. Postmatch muscle damage is greater in players with higher aerobic endurance because this fitness quality enables them to execute high-intensity activities known to be a major contributor to muscle damage.