From a scientific standpoint, it is true that you burn more fat working out at a lower intensity. The oxidative system of the body is "turned on" during any activity that lasts over 2 min and the primary source of fuel shifts gradually from burning more carb to burning more fat (although both are burned throughout every workout session). Here is the thing though, you also burn fewer calories overall! Lets say you have 30 min to workout. You probably already know that if you were to do an intense interval workout (carb and fat burn), you would burn far more calories than just walking, even though walking will burn more fat.
So...the number of fat calories you burn is not that important, because even if you burn more carb calories (from interval training), these need to be replaced both by the carbs you eat in your diet and also within your body. If you are able to discipline yourself in eating healthy meals (and not overload on carbs), your fat stores will be broken down and converted into carbohydrates when you need fuel. Even if you're burning lots of carb calories and less fat calories through exercise, your fat still inevitably gets used up...given your disciplined diet.
Interval and circuit training will burn 5x more calories than walking within the same given amount of time...hence its popularity nowadays for weight loss...so on your next walk or jog I challenge you to do a jog or sprint for 30 sec every 3 min....you'll significantly speed up your weight loss goal and start toning up!
By: Kendrick Ribeiro
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