Figure 4
From: Load carriage changes tibiofemoral arthrokinematics during ambulatory tasks in recruit-aged women

Data processing workflow. The workflow utilized to acquire and analyze biplane radiographic images of dynamic tibiofemoral joint motion. (A) Participants walked or ran on an instrumented treadmill while (B) synchronized biplane radiographs were collected at 150 images per second. (C) CT scans were segmented to create subject-specific 3D bone models with coordinate systems established in (D). (E) Digitally reconstructed radiographs, created from segmented bone tissue, were matched to the radiographic images in the virtual lab space using a model-based tracking technique. (F) Six DOF kinematics of the tibiofemoral joint and subchondral bone distances23 were generated for further analysis.