The pose does not affect the location of the "Body" so changing the pose will not move the figure in the studio but may be affected by the parameters of the pose when that pose was saved.

Example:
If the location of the "Hip" is different when switching between poses, the figure's "body" may move.
Also, if IK is ON or OFF when a pose is save/loaded, the ending pose may be affected.

May I suggest doing a few simple experiments to see what works for you.

cheers,
dr geep
;=]

Remember ... "With Poser, all things are possible, and poseable!"

cheers,

dr geep ... :o]

edited 10/5/2019