Quote:
Originally posted by pocon1
Lets pretend a 60% hr long cardio session burns 400 calories an hour. Say that you do 1 hour. Pretend that 160 of those calories comes from fat.
Now say you do 40 minutes of cardio at 85% of your heart rate. You burn 900 calories an hour, so 40 minutes equals 600 calories. of those, only 150 comes from fat.
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Yes, but you're missing the point of why many trainers argue for HIIT.
Their point is that if you only have 20 minutes to workout HIIT is better since you burn more total calories overall AND more fat calories overall. If you did a low intensity jog for the same twenty minutes a greater PERCENTAGE of calories burned would come from fat HOWEVER since you'd be burning far fewer calories over all the total fat calories burned would be less than if you did the HIIT for the same amount of time.
Some trainers also argue that HIIT is inherently anabolic, whereas long distance endurance running is catabolic.
I will say this though, I think they overstress this last point and people tand to shy away from potentially beneficial low intensity endurance training.
I think alternating both methods is best. Although if you're in poor shape I think starting off with low intensity is the best way to go.