It’s not the exercise of getting in and out, it’s the avoiding putting your hand or your knee on dirty or wet ground or leaves with a lot of thorns on them like what you get in So Cal oak tree places. I can usually get a zipper door closed most of the way just heaving myself forward. My momentum pulls the zipper down and then I fall back into my tent before I have to stick my hand or knee on the ground. It doesn’t work as well to open the door though because you need some precision to grab and pull the zipper pull. If I was taller I probably wouldn’t have these problems.