Yesterday we flew from Fort Lauderdale to Denver. Packed plane. No elbow room. We boarded, then sat on the ground for 45 minutes while they dithered over how heavy the plane really was. I guess it was light enough to take off, because we did and stayed up. The flight, wheels up to wheels down, was four hours and twelve minutes due to strong headwinds. Counting taxiing in and waiting for the jetway to hook up, I calculated we sat in our seats for five hours and 10-15 minutes.
I exercise every day, cycle a lot, and I was going nuts. I had the window seat. I kept doing secret stretching and trying to wiggle around, but to not much effect. My legs went to sleep. My back tightened up. Finally, I got up to go to the bathroom just to stand up. Aaaaah. But they wouldn't let people stand in the aisles for security reasons, and I don't blame them, but what's a person to do? I don't do well sitting still even at movies, much less for five-plus hours.
When we arrived in Denver, I felt like prying the damn door open and sprinting to baggage claim. Which I almost did.
I think this is worse for people who exercise a lot. We're not used to turning into immovable lumps. What do people do on packed flights three-plus hours and beyond?