Quote:
Originally Posted by hannukah harry
it's a bit out of date... basically, it is correct that at lower intensities you will burn more fat than carbohydrate for energy use where at higher intensities you will burn more carbs than fat. but... those are only percentages, ratios.
lets use for an example someone who burns 75% fat when walking and only 45% when jogging. i think i heard somewhere that a good estimate is 100 calories burned per mile whether walking or running. so we'll use that number for this. so lets assume he walks 3.5 miles in an hour or runs 6 miles in an hour.
3.5 miles * 100 calories = 350 calories * 75% fat = 262.5 calories burned from fat.
6 miles * 100 calories = 600 calories * 45% fat = 270 calories burned from fat
so the higher intensity will burn more calories total, more fat calories (although it's a lesser percentage of the total) and will be better exercise for the heart.
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Precisely.
The name of the game is cardio. Start three days a week for as long as you can go, then four days, then five. Very hard days should be followed by days off (in the beginning) or slow days (once your body has acclimated to it). It doesnt really matter what the cardio is--running, biking, swimming, elliptical machines, as long as you do it and stick to it.
Once you lose some of the weight, you can get on the weight benches, but to start with I would concentrate on the cardio. The cardio is what is going to be most effective and when you are starting there is no need to waste time or energy on weight training.
Oh, and diet. Of course.