Isolated Core Training Improves Sprint Performance in National-Level Junior Swimmers
Isolated Core Training Improves Sprint Performance in National-Level Junior Swimmers
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DOI：
10.1123/ijspp.2013-0488
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发表时间：
2015-03-01
影响因子：
3.3
通讯作者：
Spears, Lain R.
中科院分区：
文献类型：
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作者：
Weston, Matthew;Hibbs, Angela E.;Spears, Lain R.
目的：量化 12 周独立核心训练计划对 50 米自由泳时间的影响以及与游泳功能相关的核心肌肉组织测量。方法：20 名国家级青少年游泳运动员（男 10 名，女 10 名，年龄 16 ± 1 岁，身高 171 ± 5 cm，体重 63 ± 4 kg）参与研究。小组分配（干预 [n = 10]，对照 [n = 10]）基于 2 个预先存在的游泳训练小组，这些小组属于同一游泳俱乐部，但在不同的小组中接受训练。干预组完成核心训练，结合针对腰骨盆复合体和上部延伸至肩胛骨的练习，每周3次，持续12周。虽然训练是在正常的泳池游泳计划之外进行的，但对照组维持了通常的泳池游泳计划。作者对核心训练对 50 米游泳时间的影响以及核心功能的功能相关测量进行了基于概率大小的推断。结果：与对照组相比，核心训练干预组对 50 米游泳时间可能具有较大的有益影响（-2.0%；90% 置信区间 -3.8 至 -0.2%）。此外，在定时俯卧桥测试（9.0%；2.1-16.4%）和不对称直臂下拉测试（23.1%；13.7-33.4%）上显示出小到中度的改善，并且在最大随意收缩的孤立测试中，核心肌肉组织的峰值肌电图活动有中到大的增加。结论：这是第一项证明孤立核心训练对 50 米自由泳游泳表现有明显有益影响的研究。
Purpose: To quantify the effects of a 12-wk isolated core-training program on 50-m front-crawl swim time and measures of core musculature functionally relevant to swimming. Methods: Twenty national-level junior swimmers (10 male and 10 female, 16 +/- 1 y, 171 +/- 5 cm, 63 +/- 4 kg) participated in the study. Group allocation (intervention [n = 10], control [n = 10]) was based on 2 preexisting swim-training groups who were part of the same swimming club but trained in different groups. The intervention group completed the core training, incorporating exercises targeting the lumbopelvic complex and upper region extending to the scapula, 3 times/wk for 12 wk. While the training was performed in addition to the normal pool-based swimming program, the control group maintained their usual pool-based swimming program. The authors made probabilistic magnitude-based inferences about the effect of the core training on 50-m swim time and functionally relevant measures of core function. Results: Compared with the control group, the core-training intervention group had a possibly large beneficial effect on 50-m swim time (-2.0%; 90% confidence interval -3.8 to -0.2%). Moreover, it showed small to moderate improvements on a timed prone-bridge test (9.0%; 2.1-16.4%) and asymmetric straight-arm pull-down test (23.1%; 13.7-33.4%), and there were moderate to large increases in peak EMG activity of core musculature during isolated tests of maximal voluntary contraction. Conclusion: This is the first study to demonstrate a clear beneficial effect of isolated core training on 50-m front-crawl swim performance.