According to Men's Fintess, Colorado Springs ranks 3rd on the fittest cities list. Behind Seatle and Honolulu, with San Francisco and Denver following. However, Houston Mayor Bill White, called the survey "mostly voodoo and fraud." The magazine said it looked at factors such as the number and types of restaurants, park space, air quality, weather and the number of health clubs.
Seems an incomplete list of criteria to me. But whatever way you look at it, Colorado Springs consistently is at the top of these surveys because of the active lifestyle here and the proximity to the mountains. It is hard to have an excuse to not ever exercise here.