LifeMOD and the study of tibial strain during walking
Client:
Lappeenranta University of Technology, Finland
Business:
Research institute
Challenge:
Strains within the bone tissue play a major role in bone (re)modeling. Studying the bone strain on a human test subject can be challenging and painful. Also it is difficult to study the strains at all locations on the tibia.
Solution:
The tibial strains which occur during walking were estimated using a LifeMOD™ model of a walking human with a flexible model of the tibia imported from ANSYS.
Walking data from a human test subject was recorded using motion capture equipment and was used to drive the LifeMOD model. Using LifeMOD’s inverse-dynamics method, the muscles of the model were trained to replicate the forces necessary for the walking gait while remaining within physiological limitations.
The internal reactions of the joint forces and the muscles created loading on the flexible tibia model which induced micro strains.
Walking data from a human test subject was recorded using motion capture equipment and was used to drive the LifeMOD model. Using LifeMOD’s inverse-dynamics method, the muscles of the model were trained to replicate the forces necessary for the walking gait while remaining within physiological limitations.
The internal reactions of the joint forces and the muscles created loading on the flexible tibia model which induced micro strains.
Value:
This non-invasive flexible multibody simulation approach can be used as a surrogate for experimental bone strain measurements and helps to estimate detailed strain of bones under different conditions.
See publication.
See publication.