Not sure if the "if you build it, they will come" mantra will work here...

The folks where physical fitness is a priority will find a way- the free 7 min workout(s) from Johnson & Johnson iPad app is a good one that can be done in any open AOC room (the old temp flight ops hasn't been used for other things last time I was there), going for a run right from AOC is always an option (weather permitting), and I've found on the day turns that 3.5 hours is a good time frame (comfortably) for me to arrive in AOC, get a sleep room, change, take the bus to my car, go to Module D, workout for an hour, reverse course, eat and cool down in AOC, shower, change and be ready 15 min prior for showtime.

All this being said, I am going to email my Fleet Captain, to start, and inquire about the possibility of dedicating a room for a gym in AOC (been wanting to for a while). Can't hurt, and would be awesome.