Is there a way to offset an entire body? I need the result of offseting an entire body to then use the combine tool. I've seen the thicken command and the offset tool but this doesn't work in body parts.

What i need it's not scaling but offseting the entire body so that it mantains it's original volume. So for instance in the attached image you can see a similar result of what I want using offset, but this takes only individual faces I want the whole geometry to be affected and connected, so basically making the whole body expand in every angle (not the same as scale).

Thanks for your time, really appreciate any comment/help.