In 86 it was in the White Building Gym, you had to move, at least shuffle, even when eating. We were allowed a bathroom break every so many hours, don’t remember how many. We were lined up in groups and would run to the bathroom because as soon as you were done and could get back you could lay down while about 4 people massaged your back and legs, until the next group would come back from their break. Those were the only time you didnt have to move. I think you also were allowed 1 or 2 bathroom breaks you could take outside of the group bathroom breaks.
Also the dancers were seperate from the fans in the stage, you could stand (sway, shuffle) at the edge and talk to friends not dancing.
The best times were when they brought out the kids, a sure shot of adrenaline.