This is not always very straightforward to get exact, but you can usually get close enough to make it work. One good method would be to locate the floor in your motion capture data, since you'll be using the same reference frame in the LifeMOD model. If you're not able to do this, you can move the floor in the model down out of the way (no contact with feet), and sowly move it up until you get the foot-floor interaction you're looking for.
Location in MoCap data?
This is not always very straightforward to get exact, but you can usually get close enough to make it work. One good method would be to locate the floor in your motion capture data, since you'll be using the same reference frame in the LifeMOD model. If you're not able to do this, you can move the floor in the model down out of the way (no contact with feet), and sowly move it up until you get the foot-floor interaction you're looking for.