Real-time Biofeedback Can Increase and Decrease Vertical Ground Reaction Force, Knee Flexion Excursion, and Knee Extension Moment during Walking in Individuals with Anterior Cruciate Ligament Reconstruction

Individuals with anterior cruciate ligament reconstruction (ACLR) often exhibit a “stiffened knee strategy” or an excessively extended knee during gait, characterized by lesser knee flexion excursion and peak internal knee extension moment (KEM). The purpose of this study was to determine the effect of real-time biofeedback (RTBF) cuing an acute change in peak vertical ground reaction force (vGRF) during the first 50% of the stance phase of walking gait on: 1) root mean square error (RMSE) between actual vGRF and RTBF target vGRF; 2) perceived difficulty; and 3) knee biomechanics.
Source: Journal of Biomechanics - Category: Biomedical Science Authors: Source Type: research