With a kid who is not accustomed to playing outside, mom and dad need to do more than say “Play outside.” Take her to the local park, push her on the swings, catch her off the slide. Show her what it means to ‘spend time outdoors’.
From the looks of things, upper body would be a good place to start. Personally I gave up on working the upper body to the point where it would make my lower body look small by comparison.
Piglet couldn’t help but pooh-pooh the Pooh poo.