Curves has a program for exercise that will wake up you muscles...or at least that is what happened for me. I suppose yoga or any exercise will do the same. Then get down on the floor and figure it out. I am including a YouTube video that shows not only how to get up off the floor but also how to roll over. Simple? Well, that is up to you. I personally don't want to be part of a commercial talking about how I could not get up off the floor. How about you?
Oh, and about climbing tree...just don't do that please. You could get hurt...I'm just saying! :)