I am traveling to Denver (5280ft/1609m) this weekend from DC (0ft/m), and we are planning on doing some hiking the day we arrive. The particular hike we are looking at is Mount Galbraith, which I believe is around 7000ft/2130m. I'm somewhat concerned, since we would be hiking just a few hours after we arrive at altitude. Denver isn't that high, relatively speaking, so I'm not worried about altitude sickness. However, I don't want us to over-exert ourselves on the first day before our bodies have adjusted to the lower oxygen levels.
How worried do we need to be about hiking while adjusting to the altitude? Is there anything we can do to prepare?
I have seen this question on minimizing altitude sickness, but the answers there focus on a much higher altitude than I am concerned with.