非特异性下背痛（NSLBP）被描述为不由可识别的、众所周知的疾病引起，如感染、肿瘤、骨质疏松、骨折、结构性畸形、炎症性疾病、根性综合征或尾神经综合征。本研究的目的是确定肌电图引导的躯干稳定性锻炼对与LBP相关的功能残疾的影响。本研究采用单盲的前后试验实验比较设计。筛选出了50名慢性NSLBP患者符合纳入标准。其中40名被随机分为肌电组与未肌电组，肌电组接受躯干稳定锻炼并配备肌电生物反馈，未肌电组接受躯干稳定锻炼但不配备肌电生物反馈。参与者每周3天进行5种躯干稳定锻炼，持续4周。在基线和4周后测量了疼痛强度、活动幅度、功能残疾以及平衡。两种技术对慢性NSLBP都有显著影响，然而结合肌电生物反馈的躯干稳定锻炼在缓解疼痛强度、增加活动幅度、改善功能残疾和静态平衡方面产生了更好的效果。本研究证实，配备肌电生物反馈的躯干稳定锻炼可以安全实施，有助于增强腰部屈曲肌和伸直肌的神经肌肉效率，对NSLBP患者改善功能残疾有效。

Nonspecific lower back pain (NSLBP) is described as pain that is not caused by an identifiable, well-known disease, such as infection, tumor, osteoporosis, fracture, structural deformity, inflammatory condition, radicular syndrome, or cauda equina syndrome.The aim of this study was to determine the effect of EMG-guided trunk stabilization exercises on functional disability associated with LBP.A single-blinded pre- and post-test experimental comparative design was used for this study. Fifty individuals with chronic NSLBP were screened for inclusion criteria. Of these, forty were randomly grouped into the EMG group receiving trunk-stability exercises with electromyography biofeedback and non-EMG group receiving trunk-stabilization exercises without EMG biofeedback. Participants performed five trunk-stability exercises 3 days a week for 4 weeks. The intensity of pain, range of motion, functional disability, and balance were measured at baseline and after 4 weeks.Both techniques indicated a significant effect on chronic NSLBP; however, trunk-stability exercises combined with EMG biofeedback produced better results in alleviating the intensity of pain, increasing the range of motion, and improving functional disabilities and static balance.The present study confirms that trunk-stability exercises with EMG biofeedback can be practiced safely, contributes to a greater boost in neuromuscular efficiency in the lumbar flexors and extensors, and is effective in modifying functional disability for patients with NSLBP.