Iaizzo P A, Pozos R S
J Appl Physiol Respir Environ Exerc Physiol. 1982 Nov;53(5):1164-70. doi: 10.1152/jappl.1982.53.5.1164.
To determine whether exercise would affect physiological action tremor (PAT), normal male and female subjects exercised either by running or lifting weights. Surface electromyograms and acceleration recordings were analyzed using power spectral techniques to quantitate variations in amplitude and/or frequency of PAT. The results of this study show that running causes an increase in the amplitude of PAT. By having subjects run successively longer distances, a graded increase in amplitude of PAT was observed. After the subjects ran for long periods of time, PAT continued as an overt continuous oscillation. This oscillation did not greatly differ from pathological clonus. Furthermore, exercising the upper body alone by lifting weights increased the amplitude of PAT of the ankle. The results suggest that the exercise may cause alterations in the gain of the spinal reflexes which may lead to an underdamping of PAT. As the gain of the reflexes controlling PAT increases, this may lead to overt continuous oscillations, such as physiological or pathological clonus.
为了确定运动是否会影响生理性动作震颤（PAT），正常男性和女性受试者通过跑步或举重进行运动。使用功率谱技术分析表面肌电图和加速度记录，以量化PAT的幅度和/或频率变化。本研究结果表明，跑步会导致PAT幅度增加。让受试者连续跑更长的距离，观察到PAT幅度呈分级增加。受试者长时间跑步后，PAT持续表现为明显的持续振荡。这种振荡与病理性阵挛没有太大区别。此外，仅通过举重锻炼上半身会增加脚踝PAT的幅度。结果表明，运动可能会导致脊髓反射增益的改变，这可能会导致PAT的欠阻尼。随着控制PAT的反射增益增加，这可能会导致明显的持续振荡，如生理性或病理性阵挛。
