Capaday C, Cooke J D
Exp Brain Res. 1981;42(2):228-30. doi: 10.1007/BF00236912.
Muscle tendon vibration was applied during voluntary step-tracking arm target-movements performed by normal human subjects. Vibration (freq. = 120 Hz) was applied over either the biceps or triceps tendons. During non-visually guided (eyes closed) trials, vibration of the muscle antagonistic to the movement being performed resulted in an undershoot of the required target. Thus, biceps vibration produced an undershoot of the extension target and triceps vibration an undershoot of the flexion target. The same effect occurred if the vibration was applied continuously over several movements or only during the course of individual movements. In contrast, vibration of the muscle acting as the prime mover had no effect on the correct attainment of the required target. It is suggested that the central nervous system may monitor muscle afferent activity of the lengthening (antagonist) muscle during simple, step movements.
在正常人类受试者进行的自愿性追踪手臂目标运动过程中，施加了肌腱振动。振动（频率 = 120 赫兹）施加于肱二头肌或肱三头肌腱上。在非视觉引导（闭眼）试验中，对正在进行运动的拮抗肌进行振动会导致所需目标的欠调。因此，肱二头肌振动会导致伸展目标的欠调，肱三头肌振动会导致屈曲目标的欠调。如果在多个运动过程中持续施加振动或仅在个别运动过程中施加振动，也会出现相同的效果。相比之下，作为原动肌的肌肉振动对正确达到所需目标没有影响。有人认为，在简单的步进运动过程中，中枢神经系统可能会监测正在伸长（拮抗）肌肉的肌肉传入活动。
