Fat Power

Here is a link to an old, but good article on the importance of "fat power" when it comes to long, sustained activity.  The ability to quickly burn fats for fuel is very important not only for the cyclist, but for the marathon runner as well.  Time and time again, I hear of people running consistent speed workouts and good 5k and half-marathon times but they fall apart in the later stages of the marathon. To be good in the marathon, you need to be STRONG and that comes from mileage with a lot of steady and medium paced running.

Fat Power