...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Sports Science and Medicine >Continuous Knee Cooling Affects Functional Hop Performance a€“ A Randomized Controlled Trial
【24h】

Continuous Knee Cooling Affects Functional Hop Performance a€“ A Randomized Controlled Trial

机译：持续的膝部冷却影响功能性啤酒花性能和随机对照试验

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cryotherapy is widely used in sports and rehabilitation to aid recovery and injury management. The purpose was to examine if a low temperature computer controlled continuous knee cooling protocol (10?°C) for one hour and a moderate continuous knee cooling protocol (18?°C) for one hour affected neuromuscular activity and functional performance tests. We used a randomized controlled study design. Twenty healthy male subjects (age = 24 ?± 3 years) were included and randomized into 2 groups (10?°C and 18?°C). On day one, participants performed a maximal voluntary contraction of the quadriceps (MVC), single leg hop for distance (SLHD), and crossover hop for time (COHT) with both legs before and after cooling of their right leg. At day two, the same tests were performed with both legs before and after cooling of the left leg. Participants exposed to the 10?°C-protocol showed a significant decrease in SLHD and COHT performance. For the 18?°C-group, no significant changes in SLHD and COHT outcomes were noted. In both groups, EMG frequency during MVC decreased, but no significant increases were found in EMG amplitude. Continuous knee cooling at 18?°C for one hour does not affect functional hop performance, though adaptations at the muscle level (EMG frequency decrease) can be observed. Applying a similar cooling protocol with 10?°C results in a significant decrease in functional hop performance and EMG frequency. EMG amplitude remained unaffected. This infers that changes at muscle level due to local temperature manipulations may not always be detrimental to functional performance.
机译：冷冻疗法广泛用于运动和康复中，以辅助康复和伤害管理。目的是检查低温计算机控制的连续膝部冷却规程（10℃）一小时和中等温度的连续膝部冷却规程（18℃）一小时是否影响神经肌肉活动和功能性能测试。我们使用了随机对照研究设计。纳入二十名健康男性受试者（年龄= 24±3岁），并随机分为2组（10℃和18℃）。在第一天，参与者在右腿冷却之前和之后都进行了最大的四头肌自愿收缩（MVC），单腿跳跃距离（SLHD）和跨步跳跃时间（COHT）。在第二天，在左腿冷却前后对双腿进行相同的测试。暴露于10°C协议的参与者的SLHD和COHT性能显着下降。对于18°C组，未观察到SLHD和COHT结果有明显变化。在两组中，MVC期间的EMG频率均降低，但EMG振幅未发现明显升高。尽管可以观察到在肌肉水平上的适应性（EMG频率降低），但在18°C的温度下连续膝盖冷却一小时不会影响功能性跃点性能。采用10°C的类似冷却方案会导致功能跃点性能和EMG频率显着下降。 EMG振幅保持不受影响。这表明由于局部温度控制而导致的肌肉水平变化可能并不总是对功能表现有害。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号