As far as I know there is no native implementation of anything like this in Houdini?

Maya has it with HumanIK and i've seen it for Unity and Blender:

https://www.youtube.com/watch?v=mNvtZCboy7w [youtube.com]
https://www.youtube.com/watch?v=lG3uKYQTVj4 [youtube.com]

Has anyone tried anything similar? Or at least know where to start?