When I go to the gym to do cardio I notice on the cycling machines and treadmills that there is a cardio zone (High heart rate) and fat burn zone (low heart rate) I have always done the cardio zone (running ext) Now wouldn't I be burning more fat while running then just walking on the treadmill?

Use those parametres pretty loosly. As you train you become more efficient at using fat as an energy source. The people with the highest fat oxidation rates are long distance runners. Fat oxidation can be genetically determined as well as prior training.

Just master the art of calories in < calories out whilst making sure your calories are coming from the correct macronutrient.

you do burn more fat while running, but you burn fate more efficiently while walking, as in more of the calories your burning are coming from fat, generally. Continue running as it has the added health benefits that cardio does anyways =D

The reason why walking is sometimes more efficient for fat oxidation is because of the intensity for different people. After a while those people will have to start running and walking will no longer have a faster fat oxidation rate.

The so-called "fat burning zone" burns a higher percentage of fat than higher intensities, but the higher aerobic intensities burn more calories overall, and, even with a lower percentage of calories burned from fat, still burn more fat for a given amount of time than the "fat burning zone".

Once you get to anaerobic intensities that are only sustainable for sprints, energy has to come from glycogen / carbohydrates rather than fat. But doing sprints / HIIT is still effective at losing fat, since subsequent carbohydrate calorie intake reloads muscle glycogen instead of going to fat.

The lower intensities of cardio may be suitable for beginners or those recovering from injuries, but people who just want to improve fitness and/or burn calories would be better served by HIIT and/or longer term cardio at the high end of the aerobic range, rather than doing cardio at lower intensities like the so-called "fat burning zone".

The answer is yes.

Generally speaking, while you may burn a lower ' proportion of fat ' exercising in the " cardio zone " ( as compared to the " fat burn zone "), you'll burn a higher ' volume of fat ' in the " cardio zone ".

Just my opinion but the answer is a yes and no.

While you are running, you will burn more fat; however its difficult to sustain that level for a long period of time. In essential if you run for 30 minutes vs walking for 30 minutes, you will burn more fat running. However, if you run for 30 minutes vs walking for 60 minutes, you will burn more fat walking that hour as long as you keep your heart withing the fat burning zone and not going too slow.

who is this guy???? anybody sense an episode of "invasion of the body snatchers?"

surfers aint go tno brains!