Its very common for guys to gain 10-20 lbs on deployment. With standing Watch, drills, and minimal sleep its hard to be motivated to try to work out.Also, how in the hell do you not become a fat fuck on a sub when you eat whatever you want and not much exercise? I would be wearing my fat pants lol
On attack subs, we had 1 stationary bike and a few dumbbells and that was it. There wasn't any mini track to run around like Denzel Washington does in Crimson Tide.
The Trident subs have a little mini Nordic trac system from what I've seen while they've been in port ( I've done maintenance on their sonar suite but never went to sea on one). They do have a walkway around the missile tubes that they could potentially jog around. Not sure if that would be allowed because if the need to stay quiet and not cause any ambient noise.