Figure 7From: The influence of electromyographic biofeedback therapy on knee extension following anterior cruciate ligament reconstruction: a randomized controlled trial “Symptomatic giving way ” patients (mean value ± SD) of the affected knee preoperative and 6 weeks follow up (4 = Always, 3 = Frequent, 2 = Partly, 1 = None / preop. = preoperative, 1., 2., 4., and 6. Post-op. / W. = 1., 2., 4., and 6. Post-operative week). Back to article page