Dear AnyBody experts, I have a question to consult. I plan to study the impact of ascending and descending stairs at different step heights on the internal soft tissues of the knee joint. Specifically, I intend to use AnyBody simulation to derive the tension or load on the ligaments and meniscus of the lower limb knee joint. When using the FullBody model in AMMR, I did not find any information regarding ligament forces or the meniscus in the lower limb. However, I genuinely need this data. Is there any way to achieve this? I have collected C3D data using Vicon and Kistler force plates, and the marker points collected are also the 41 markers required by the AnyBody software. Thank you all. There is so much to learn in AnyBody, so I can only seek guidance from those who are proficient. I appreciate any advice you can provide.
Hi Yu Xia,
The standard motion capture models are using a revolute joint, so this allows you to export three forces and two moments, look in the interface folder for these.
If you need ligament forces you will need to use a different type of analysis type called Force dependent kinematics (FDK) see Force-Dependent Kinematics — AnyBody Tutorials v8.1.4-3. Concerning the meniscus this is more difficult but would also require the use of FDK.
In general using FDK to simulate intact knee (this is what you need right?) will require some effort, there are models available using knee implants. It will also require you to have bone geometries available for the subject, do you have these?
Best regards
Søren