Myth: I need to exercise in the "fat burning" zone on my elliptical / treadmill in order to lose weight.
Truth: You're always in the "zone" even at rest!
Verdict: The 'zone' is misleading and not telling the true story!
Exercise Intensity dictates the proportion of fuel use. Put simply, the higher the intensity, the more fuel you use from Carbohydrate (CHO). The lower the intensity, the more fuel you use from Fat.
It is a big mistake to think a certain heart rate and/ or intensity will place you in the "fat burning zone".
You obviously burn more calories exercising at higher intensity - but the contribution of different substrates (CHO, Free Fatty Acids, Intramuscular triglycerides, blood glucose) changes at different intensities.
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