Fig. 6From: Biomechanical analysis of canine medial patellar luxation with femoral varus deformity using a computer modelForce-length and force-shortening velocity curves for rectus femoris muscle. The force-length and force-shortening velocity curves were used to calculate the coefficients of the muscle activation force using the initial and current relative length of the muscle, and the shortening velocity of the muscle, respectivelyBack to article page