Effect of Transcutaneous Electrical Nerve Stimulation Combined with Elastic Band Training on Improving Exercise Capacity in Patients with Functional Chronic Ankle Instability and Its Mechanism

目的：本研究旨在探讨经皮神经电刺激(TENS)联合弹力带训练对慢性踝关节不稳定(CAI)患者运动能力的改善效果及其潜在机制。方法：研究招募45名CAI患者，随机分为经皮神经电刺激组、弹力带训练组和TENS联合弹力带训练组。干预周期为6周，实验前后分别测试受试者的肌肉电活动水平、动态平衡能力及静态平衡能力，并使用SPSS22.0统计分析。结果：6周干预后，所有受试者的肌电活动水平、动态平衡能力及静态平衡能力均有显著改善(p p Objective: This study aimed to investigate the effect of transcutaneous electrical nerve stimulation (TENS) combined with elastic band training on improving exercise capacity in patients with chronic ankle instability (CAI) and explore its underlying mechanisms. Methods: Forty-five CAI patients were recruited and randomly assigned to a TENS group, an elastic band training group, or a combined TENS and elastic band training group. The intervention lasted 6 weeks. Muscle electrical activity, dynamic balance, and static balance were assessed before and after the intervention. Data were analyzed using SPSS 22.0. Results: After 6 weeks, all groups showed significant improvements in muscle activity, dynamic balance, and static balance (p p < 0.05). Conclusion: The combination of TENS and elastic band training enhances neuromuscular control and muscle strength by optimizing motor unit activation patterns, thereby improving ankle stability. This approach provides an effective rehabilitation strategy for CAI patients.