Development of a Robotic Assembly for Analyzing the Instantaneous Axis of Rotation of the Foot Ankle Complex

Figure 6

Kinematic and load control strategy for full load application simulation. Once the balanced position for pure moment loading was achieved (establishing the true ARA) the additional shear and compressive loads () were introduced to maintain the axial tibial force and vGRFs. By passing these forces through the rotational axis of the ankle, the moment value was unchanged. The NTT data remained aligned with the rotated tibia axes. Achilles load is not shown.