Best approach is to add a socket to the pelvis bone. Then you can use the get socket location node to find that location. After that you just isolate the Z value, and compare against the Z of the object you want to check
Best approach is to add a socket to the pelvis bone. Then you can use the get socket location node to find that location. After that you just isolate the Z value, and compare against the Z of the object you want to check