Fig. 1

Overview of the setup. Left: Schematic representation of the setup and marker placement, lateral view. The ILS is shown in green, the orthosis in blue, the frame in grey/black, the sensors in orange and the markers in yellow. Markers XULM2, FTFM, AxisMed, XULMJoint, XLLMJoint, XLLM2 and LowerLegMed are not shown as they are placed on the medial side. Detailed information about marker placement can be found in the Annex. Middle: Photos of the setup. Right: Visualization of internal rotational misalignment (A), posterior translational misalignment (B) and distal translational misalignment (C) of a leg with respect to a knee brace, where the red dashed line and crosses represent the orthosis center of rotation and the green dashed line and crosses represent the leg center of rotation