Joint reaction analysis calculations

[hongjie hou]

Hello everyone,

I want to know the detailed calculation process of Joint Reactions Analysis. I do not know how to determine the point of action and direction of muscle force. For example, the specific parameters of the direction of the muscle force and the size of the ellipse in the figure below.
thanks,
hongjie

[jimmy d]

I want to know the detailed calculation process of Joint Reactions Analysis.

Resources are here, here, and here.

I do not know how to determine the point of action and direction of muscle force

There is a plugin available here that you can use to extract the muscle lines of action