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首页> 外文期刊>Deutsche Zeitschrift fur Sportmedizin >Zentrale Ermüdung bei Sport-und Alltagsbelastungen: eine Magnetstimulationsstudie
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Zentrale Ermüdung bei Sport-und Alltagsbelastungen: eine Magnetstimulationsstudie

机译：中心易在Sport-undAlltagsbelastungen:一个Magnetstimulationsstudie

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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：以前的经颅磁刺激(TMS)研究显示运动诱发抑郁症势(MEP)后疲劳运动。目前的经颅磁刺激研究的目的是评估议员的变化大小和运动中枢传导时间(CMCT)经过各种锻炼的日常生活和运动。外围运动传导为主锻炼肌肉立即记录之后,主要是有氧(爬楼梯和慢跑)和厌氧(俯卧撑,肩部持有400 m-run)运动。锻炼(耗尽肩部控股,俯卧撑)导致明显降低议员振幅(-36%和-28%,分别地。)中运行议员振幅的降低18% (p <0.07)。保持不变。(注册在超大的潜力外周电刺激)和CMCT在所有模式保持不变。总运动传导时间减少有氧运动,可能是由于增加了温度的腿。合适的技术的客观评价中央疲劳,这表明只有详尽或者力量练习导致减少议员。

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