Draper V
Knoxville Orthopedic Clinic, Orthopedic Rehabilitation Center, TN 37909.
Phys Ther. 1990 Jan;70(1):11-7. doi: 10.1093/ptj/70.1.11.
The purpose of this study was to compare the effects of biofeedback-facilitated exercise with exercise alone on the recovery rate of quadriceps femoris muscle function following anterior cruciate ligament (ACL) reconstruction. Functional measures included 1) a dynamometric test of quadriceps femoris muscle isometric peak torque during the 12th postoperative week and 2) the number of days post-operatively that a patient achieved full active extension of the knee. Twenty-two patients with acute ACL injury were randomly assigned to a Treatment (biofeedback) Group (n = 11) or a Control (nonfeedback) Group (n = 11) during the first therapy session one week after reconstructive surgery. After the patients had completed the 12-week exercise program, the quadriceps femoris muscle isometric peak torque in the operative limb was compared with that in the nonoperative limb at three angles (90 degrees, 60 degrees, and 45 degrees) of extension. An analysis of variance revealed significant differences between the Treatment and Control Groups at all three angles. Mean recovery time was calculated for each group, and a t test for independent samples indicated a significant difference between the groups. These results demonstrate that the addition of biofeedback to muscle strengthening exercises facilitates the rate of recovery of quadriceps femoris muscle function following ACL reconstruction.
本研究的目的是比较生物反馈辅助运动与单纯运动对前交叉韧带（ACL）重建术后股四头肌功能恢复率的影响。功能测量包括：1）术后第12周股四头肌等长峰值扭矩的测力测试；2）术后患者实现膝关节完全主动伸展的天数。22例急性ACL损伤患者在重建手术后一周的第一次治疗期间被随机分为治疗（生物反馈）组（n = 11）或对照（无反馈）组（n = 11）。患者完成12周的运动计划后，在三个伸展角度（90度、60度和45度）下，将手术侧肢体的股四头肌等长峰值扭矩与非手术侧肢体的进行比较。方差分析显示治疗组和对照组在所有三个角度均存在显著差异。计算每组的平均恢复时间，独立样本t检验表明两组之间存在显著差异。这些结果表明，在肌肉强化运动中添加生物反馈可促进ACL重建术后股四头肌功能的恢复速度。
