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Answer:
The theory
behind interval training is as follows:
It is a myth
that low intensity cardio training is best
for fat loss just because more fat is burned
for fuel as a percentage of the total calories
burned.
When you exercise,
you are always burning a combination of
fat and carbohydrates (in the form of glycogen
- the stored form of carbohydrates). This
ratio varies depending on the type of training
you do.
Low Intensity
(L.I. for short) burns about 50% fat for
fuel while High Intensity (H.I.) burns about
40%. This is not a big difference.
Say, for example,
you burn 100 calories in 20 minutes of L.I.
work compared to 160 calories in 10 minutes
of HI work, you've still burned more total
fat doing HI.
Low Intensity
100 calories x 50% = 50 calories
High Intensity
160 calories x 40% = 64 calories
High intensity
training will also boost your metabolism
long AFTER the workout is done due to the
increased demand on your cardiovascular
and muscular system. This does not happen
with low intensity training. This is the
reason it is said that interval training
burns fat all day. Your body will also be
burning carbs at the same time, of course,
but since your metabolism has been raised,
you will be burning more fat too.
The basic
idea when you're trying to lose fat is to
create a caloric deficit. The type of training
does not matter as much as creating that
deficit. High Intensity training just creates
the deficit more efficiently than Low Intensity
training.
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