What do you think burns more body fat?

This is incorrect. The only time this would be true is when your walking speed and your running speed are about the same. Calorie burning is a measurement of the energy a body of certain weight expends to travel a certain distance. Speed is a factor that determins how much time it will take to get from point A to point B, and it's effect on energy expenditure is very significantly smaller then distance or weight. This would be true if you are limiting the workout by time. Going farhter over an hour will cover a longer distance, and also burn more calories - a lot more calories. If you're walking for an hour, you've covered a lot shorter distance, les energy spent, fewer calories burned. If you vary time, and keep the distance fixed, which is the example I made in my earlier post, then calories burned will be within 10-20% of each other, whether you ran or walked it. Except walking it will take you a lot longer. Heer are some articles elaborating on this: www.runningplanet.com/.../running-versus-walking.html www.runnersworld.com/.../burns-calories-time-distance health.msn.com/.../articlepage.aspx

This is incorrect. The only time this would be true is when your walking speed and your running speed are about the same. Calorie burning is a measurement of the energy a body of certain weight expends to travel a certain distance. Speed is a factor that determins how much time it will take to get from point A to point B, and it's effect on energy expenditure is very significantly smaller then distance or weight. This would be true if you are limiting the workout by time. Going farhter over an hour will cover a longer distance, and also burn more calories - a lot more calories. If you're walking for an hour, you've covered a lot shorter distance, les energy spent, fewer calories burned. If you vary time, and keep the distance fixed, which is the example I made in my earlier post, then calories burned will be within 10-20% of each other, whether you ran or walked it. Except walking it will take you a lot longer. Heer are some articles elaborating on this: www.runningplanet.com/.../running-versus-walking.html www.runnersworld.com/.../burns-calories-time-distance health.msn.com/.../articlepage.aspx