So there are a lot of questions out there that talk about how species would evolve on terrestrial planets with higher or lower gravity than earth. All of those are very interesting and have some great answers. They even address how a dominant species might evolve similar to how humans evolved on Earth. A decent question was posted here, but my situation varies in a few ways. My question is how humans would evolve if moved to those planets.
If humans settle planets with higher gravity (let's use a planet with 2G and a planet with 4G) what changes to human physiology might happen on these planets after hundreds of thousands of years through evolution?
I understand that there are many forces in effect here, most importantly the local species and evolutionary patterns already established on those planets. Let's assume there are no significant changes here from earth, and no competing sentient species. I am trying to isolate the changes encouraged by gravity specifically. I am assuming no genetic enhancement or body modification on part of the humans, relative isolation of the gene pool (the humans are dropped off and separated from humans on other planets), and the resources for the humans to survive long enough to evolve.
On these planets let's assume that there is a similar orbit, similar relative time, and a similar atmosphere to earth wherever possible. Essentially it is earth with higher gravity.
With all of this stated I'll ask my question again:
What changes to human physiology should be expected if isolated humans were allowed to evolve on terrestrial planets with higher gravity? Namely 2G and 4G planets similar to earth in other aspects.