Effect of resistance exercise with slow movement, and elucidation of the mechanism

本研究审查了不同运动的影响持续时间的持续和精确动作期间的抵抗运动对荷尔蒙反应的缓慢运动。九个成年人在单独的日子里完成了四次试验。低强度抵抗运动与缓慢运动（5个用于升降动作， 1个用于升降动作; 5-1试验）-低强度抵抗运动与缓慢运动（用于举重动作， 5秒用于低动作， 1-5次试验）·低强度阻力练习与缓慢运动（3个用于举重动作， 3个用于举重动作， 3-3次试验）正常运动的高强度抗阻力运动（是用于提升动作，是用于降低动作， 1-1次试验）阻力练习由4组双膝关节延长术组成。血液样本收集到了一个用于确定血液荷尔蒙的集合。氧气的摄入量和心脏速率也在每一组运动和休息时间之间进行了测量。结果显示，总的工作量通过四组运动在1-1次试验中明显大于其他三次试验。在试验中，使用缓慢的升降， 1-5试验展示了最高的工作量，1-5和5-1试验之间有显著的差异。在锻炼后，在1-1和5-1试验中显示出明显的大值比1-5试验中的1-5试验中没有明显的差异可以在锻炼中观察到荷尔蒙集中的增加，但在试验中显示出1-5试验中对诺肾上腺素和免费测试酮的较小反应。在添加剂中， 1-1和5-1试验显示了氧化物升高和心率的大价值。“运动诱导的强度损失显示出试验中没有明显的差异，这些结果表明了在更长的时间内进行缓慢提升的运动，而在一个持续的时间内，运动诱导的代谢压力。”替代地，在较长的时间内进行练习，以较低的周期显示的去甲肾上腺素和游离的睾丸激素，以及反应反应。

This study examined the effects of different exercise duration of concentric and eccentric actions during resistance exercise with slow movement on hormonal responses. Nine adult men performed following four trials on separate days.・Low-intensity resistance exercise with slow movement (5s for lifting action, 1 s for lowering action; 5-1 trial)・Low-intensity resistance exercise with slow movement (Is for lifting action, 5 s for lowering action, 1-5 trial)・Low-intensity resistance exercise with slow movement (3s for lifting action, 3 s for lowering action, 3-3 trial)High-intensity resistance exercise with normal movement (Is for lifting action, Is for lowering action, 1-1 trial)Resistance exercise consisted of 4 sets of bilateral knee extension. Blood samples were collected to determine blood hormone concentrations. Oxygen uptake and heart rate were also measured during each set of exercise and rest periods between sets.The results showed that total work volume throughout four sets of exercise was significantly greater in the 1-1 trial than other three trials. Among the trials using slow lifting, 1-5 trial showed a highest work volume, with significant difference between 1-5 and 5-1 trials. Blood lactate concentration after exercise showed significantly greater values in the 1-1 and 5-1 trials than in the 1-5 trial No significant difference was observed in the exercise-induced increases in hormone concentrations among the trials, but 1-5 trial showed smaller responses of noradrenalin and free testosterone. In addition, 1-1 and 5-1 trials showed greater values of oxygen uptake and heart rate. The exercise-induced strength loss showed no significant difference among the trials.These results indicate that slow-lifting exercise with longer duration of concentric phase augments exercise-induced metabolic stress. Alternatively, the exercise with longer duration of eccentric phase shows smaller secretions of noradrenalin and free testosterone, and respiratory responses.