Beckham J C, Keefe F J, Caldwell D S, Brown C J
Behavioral Medicine Research Center, Duke University Medical Center, Durham, North Carolina 27710.
Biofeedback Self Regul. 1991 Mar;16(1):23-35. doi: 10.1007/BF01000443.
This paper presents a single case controlled study of a 75-year-old male having bilateral total knee replacement. Baseline EMG recordings demonstrated differential levels of vastus medialis and vastus lateralis muscle activity in both knees during exercise, with increased vastus lateralis activity compared to vastus medialis activity. The purpose of the study was to use electromyographic (EMG) biofeedback training to train the patient to equalize vastus medialis and vastus lateralis EMG activity during exercise. After 11 and 13 training sessions for the left and right knees, respectively, differences between vastus medialis and vastus lateralis activity had markedly decreased. Following the termination of biofeedback training, EMG activity during exercise showed a return toward baseline levels. Several concomitant changes in psychological and physical function were noted. These results suggested that EMG biofeedback can be used to train vastus medialis and vastus lateralis activity in total knee replacement patients, and that biofeedback training may produce positive benefits in other functional areas.
本文介绍了一项针对一名接受双侧全膝关节置换术的75岁男性的单病例对照研究。基线肌电图记录显示，运动期间双膝的股内侧肌和股外侧肌活动水平存在差异，股外侧肌活动比股内侧肌活动增加。该研究的目的是使用肌电图（EMG）生物反馈训练来训练患者在运动期间使股内侧肌和股外侧肌的肌电图活动达到平衡。分别对左膝和右膝进行11次和13次训练后，股内侧肌和股外侧肌活动之间的差异明显减小。生物反馈训练结束后，运动期间的肌电图活动显示恢复到基线水平。还注意到心理和身体功能有一些伴随变化。这些结果表明，肌电图生物反馈可用于训练全膝关节置换患者的股内侧肌和股外侧肌活动，并且生物反馈训练可能在其他功能领域产生积极益处。
