Figure 6From: The influence of electromyographic biofeedback therapy on knee extension following anterior cruciate ligament reconstruction: a randomized controlled trial HHD Test (mm) (mean value ± SD) between involved and non-involved knee pre- and postoperative 6 weeks follow up (preop. = preoperative, 1., 2., 4., and 6. pop. W. = 1., 2., 4., and 6. postoperative week). Back to article page