...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Deutsche Zeitschrift fur Sportmedisin >Zentrale Ermüdung bei Sport-und Alltagsbelastungen: eine Magnetstimulationsstudie
【24h】

Zentrale Ermüdung bei Sport-und Alltagsbelastungen: eine Magnetstimulationsstudie

机译：运动和日常压力下的中央疲劳：磁刺激研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Previous transcranial magnetic stimulation (TMS) studies showed depression of motor evoked potentials (MEP) after fatiguing exercise. The purpose of the present TMS study was to evaluate changes in MEP size and central motor conduction time (CMCT) after various kinds of exercise of daily life and sports. MEP size, central and peripheral motor conduction to the primarily exercised muscle were recorded immediately before and after predominantly aerobic (climbing stairs and jogging) and anaerobic (press-ups, dumb-bell holding, 400 m-run) exercise. The strength exercise (exhausting dumb-bell holding, press-ups) resulted in a significant decrease of MEP amplitudes (-36% and -28%, resp.), running in a decrease of the MEP amplitude by 18% (p < 0.07). After aerobic exercises MEP amplitudes remained unchanged. The compound motor action potentials (registered after supramaximal peripheral electrical stimulation) and the CMCT remained unchanged in all paradigms. PMCT and total motor conduction time were decreased after aerobic exercises, probably due to an increase of temperature of the legs. In conclusion, TMS is a suitable technique for objective evaluation of central fatigue, indicating that only exhaustive or strength exercises result in reduced MEPs.
机译：先前的经颅磁刺激（TMS）研究表明，疲劳运动后运动诱发电位（MEP）下降。本TMS研究的目的是评估日常生活和运动后的各种锻炼后，MEP大小和中枢运动传导时间（CMCT）的变化。在有氧运动（爬楼梯和慢跑）和无氧运动（俯卧撑，哑铃保持，400 m跑步）之前和之后立即记录MEP大小，对主要运动的肌肉的中枢和外周运动传导。力量锻炼（保持哑铃，俯卧撑）使MEP幅度显着下降（分别为-36％和-28％），使MEP幅度下降18％（p <0.07） ）。有氧运动后，MEP振幅保持不变。在所有范例中，复合运动动作电位（在最大外周电刺激后记录）和CMCT均保持不变。有氧运动后，PMCT和总运动传导时间减少了，这可能是由于腿部温度升高所致。总之，TMS是一种适用于客观评估中央疲劳的技术，表明只有进行彻底的锻炼或力量锻炼才能降低MEP。

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