Figure 5From: Influence of model complexity and problem formulation on the forces in the knee calculated using optimization methodsUnbalanced force vectors and resultant ligament forces. Unbalanced force vectors for both RM and RML with the eight objective functions (J1-J8). The resultant ligament forces L ⇀ for RFML are also shown. X is the anterior (+)/posterior (−) component; Y is the superior (+)/inferior (−) component; and Z is the lateral (+)/medial (−) component.Back to article page