As far as sweating too much and infecting the insertion site, I’ve never had an issue.
During the summer months when I am not only more active for more hours of the day but also sweatier, I will use skin-tac wipes before any pod application. For times like now (not out as much yet), I’ll at least use skin-tac to attach it to my arms (the curvature of my arms seems to accelerate any kind of edge peeling if I don’t use an extra adhesive…but this hasn’t been an issue on my back/sides/stomach).
I also use a shooter sleeve (except the shorter version of this one) when I wear the pod on my arm for swimming.
I’d just try not to put the pod directly where you’re going to lay or press against. For example if you’re going to do a lot of ab work on a medicine ball then placing the pod directly on your rear where you’re going to sit on it is probably not a great idea. Just be mindful of the type of workouts you’re thinking about doing in the next few days and do pod changes/placements accordingly (gotta love how diabetes always makes you look 3 steps ahead like a game of chess or something…).
Good luck w/ your workouts! I think you’ll be great!