I’ve lived most of my life at sea level. Or close to it. Now I’m living at a little over an altitude of 3000 feet. And there are many more hills in Calgary than there are in Tampa Bay. At first I thought I was just a lot more out of shape than I really am. The level ground has not been too bad but the hills kill me.
I did a little research to see if there would be that much difference in oxygen in the air at 3000 plus feet. It is not a lot but somewhere between 10 and 12 percent less oxygen. I’m not sure that it is actually less oxygen or the air pressure at higher altitudes make it ‘effectively’ less. I did some research and found one site with a chart that gives some pretty interesting data on altitude vs oxygen.
In addition, is that fact that in Florida I didn’t get to work that many hills. A few bridges and that is about it. The plus is that next time I ride in Florida it should be very easy.