Thread: Burning Fat Or Carbs?

but then wouldnt you be highly catabolic too as your then at 80% of this even higher figure??

At maximal heart rate the carbs you burn are ATP and creatine phosphate (PCr)... but at lower heart rate you convert glycogen (your bodys main carb store) to this and will also breakdown some muscle tissue (especially if dietary carbs are low). A basic way to look at it is that fat requires a lot of chemical changes to be liberated for energy and so can only provide a 'slow trickle' of energy, whereas carbs are a much more immediate...

Got this off wikipedia. For maximum fatloss you want to be keeping the intensity fairly low then? This would allow for higher fat loss and less muscle loss? What happens when you burn carbs opposed to fat? Intensity (%MHR) Heart Rate (bpm) % Carbohydrate % Fat 65-70 130-140 40 60 70-75 140-150 50 50 75-80 150-160 65 35 80-85 160-170 80 20 85-90 170-180 90 10 90-95 180-190 95 5 100 190-200 100 -

^^ That's exactly what Dtlv is saying