Sale D G, MacDougall J D, Upton A R, McComas A J
Med Sci Sports Exerc. 1983;15(1):57-62.
Two healthy females and twelve healthy males, aged 19-24 yr, underwent strength training for periods of 9-21 wk. The muscles trained included extensor digitorum brevis (N = 3), soleus (N = 7), brachioradialis (N = 4), and the hypothenar muscles (N = 3). The effect of training on motoneuron excitability was measured as the degree to which two reflex responses (V1 and V2) were potentiated by voluntary effort. Strength training was found to increase V1 and V2 potentiation by 49.7 and 38.9%, respectively, (P less than 0.01) for pooled muscle comparisons with the exception of the soleus V2 wave, which was rarely seen and excluded from this analysis. There was a positive correlation (r = 0.83, P less than 0.01) between the change in the V1 and V2 potentiation. It was argued that strength training may cause an increased ability to raise motoneuron excitability during voluntary effort.
两名健康女性和十二名健康男性，年龄在19至24岁之间，接受了为期9至21周的力量训练。训练的肌肉包括拇短伸肌（N = 3）、比目鱼肌（N = 7）、肱桡肌（N = 4）和小鱼际肌（N = 3）。训练对运动神经元兴奋性的影响通过自愿努力增强两种反射反应（V1和V2）的程度来衡量。除比目鱼肌V2波很少出现并被排除在该分析之外，力量训练被发现与合并肌肉比较相比，分别使V1和V2增强49.7%和38.9%（P小于0.01）。V1和V2增强的变化之间存在正相关（r = 0.83，P小于0.01）。有人认为力量训练可能会导致在自愿努力期间提高运动神经元兴奋性的能力增强。
