Department of Social Psychology, Social Anthropology, Social Work and Social Services, University of Málaga, 29071 Málaga, Spain.
Department of Sport, Food and Natural Sciences, Western Norway University of Applied Sciences, 5020 Bergen, Norway.
Sensors (Basel). 2022 May 26;22(11):4024. doi: 10.3390/s22114024.
Electromyographic biofeedback (EMG-BF) is a therapeutic technique that has been used successfully in the rehabilitation of injuries. Although it has been applied to athletes, its use in this field is not very widespread. The objective of this study is to analyze its effectiveness in the recovery of electromyographic activity of the quadriceps after meniscectomy, evaluated through isometric contraction of the vastus lateralis. The sample comprised ten professional footballers in the Spanish League (2nd Division A) who had previously suffered a meniscus injury in their knee and had undergone a meniscectomy. The intervention consisted of EMG-BF treatment lasting between 6 and 10 sessions. The electromyographic signal was recorded using a Thought Technology ProComp Infiniti 8-channel biofeedback unit with a sampling rate of 2048 samples/second. For each session, a within-subject ABA design of 6 or 10 trials per session was used, with three pre- and three post-measures, which determined the gain for each session. The results indicated (1) improvements in all cases, (2) EMG-BF was effective, (3) the working model was statistically significant with an explained variance of between 67% and 75%, and (4) the generalizability analysis showed that the results are reliable and generalizable. The results indicate that EMG-BF is effective in neuromuscular rehabilitation after this type of intervention.
肌电图生物反馈（EMG-BF）是一种已成功应用于康复损伤的治疗技术。尽管它已应用于运动员，但在该领域的应用并不广泛。本研究的目的是分析其在膝关节半月板切除术后股四头肌肌电图活动恢复中的有效性，通过股外侧肌等长收缩进行评估。该样本包括来自西班牙甲级联赛（第 2 分区 A 组）的十名职业足球运动员，他们之前曾在膝盖受伤并接受过半月板切除术。干预措施包括 EMG-BF 治疗，持续 6 到 10 个疗程。肌电图信号使用 Thought Technology ProComp Infiniti 8 通道生物反馈单元以每秒 2048 个样本的速率进行记录。对于每个疗程，使用每个疗程 6 或 10 次试验的个体内 ABA 设计，进行三次预处理和三次后处理，以确定每个疗程的增益。结果表明：（1）所有病例均有改善；（2）EMG-BF 有效；（3）工作模型具有统计学意义，解释方差为 67%至 75%；（4）可推广性分析表明结果可靠且可推广。结果表明，EMG-BF 对这种干预后的神经肌肉康复是有效的。
