The
body has three cycles for providing energy during exercising. Each of
this cycles demand energy from your body in a different way. However,
only one of them is most effective in resulting to weight loss, hence
the term weight loss exercises.
Phosphagen
Energy Cycle
First
is the phosphagen cycle. This is an energy cycle that does not depend
on oxygen. It is anaerobic meaning "without oxygen". In place of oxygen
it uses a compound in the body called creatin phosphate.
The cycle makes energy for about 8 to 10 seconds only. Energy here is
produced very fast as it takes only one chemical reaction to produce
it. This is principally the energy cycle 100 meters sprinters use.
Glycogen-Lactic
Acid Energy Cycle
The
second cycle is the Glycogen-Lactic acid cycle. There about 12
reactions involved here to give energy. As a result it gives energy at
a slower rate. In this case the cycle uses the immediate energy reserve
of the body called glycogen. Glycogen is a simpler energy reserve than
body fat that is stored in muscles for supply of energy in short
notice. When in high demand the cycle can give energy for 1.3 to 1.6
minutes. This process is also considered anaerobic. It makes muscle
tired and sore very quickly as it produces lactic acid.
Aerobic
Energy Cycle
The
third cycle is the Aerobic cycle. It uses oxygen and provides energy
for extended periods of time e.g. for marathoner. The cycle is able to
reduce the build up of lactic acid in the muscle allowing you to
continue performing for a longer period. This is the cycle you usually
use for daily chores. Here energy is provided by glucose in the
presence of oxygen. Also fatty acids in the presence of oxygen can be
used. This is what is called fat metabolism or fat burning.
It produces energy at much slower rate due to the greater number of
chemical reactions that are required. This is the energy cycle that a
weight loss exercise should target. Why, because it uses both glucose
and fat as source of energy.
A good example is aerobics. Aerobics are physical activities that
promote this third cycle, and involve a lot of breathing as you execute
muscle movements. This includes jogging and walking. Indeed walking and
hiking has been associated with 54% reduction in the risk of becoming
overweight.
Apart from assisting in significant and healthy weight loss, exercises
have even more benefits;
Exercising
improves heart efficiency and improves blood circulation.
Reduces
blood cholesterol levels.
It
facilitates production of endorphins, the feel good hormones, resulting
to a sense of well being
Relaxes
muscle reducing bodily tension and maintains body flexibility.
Helps
in controlling high blood pressure.
Assist
in encouraging rest.
Normalizes
perspiration and aids the elimination of toxic substances.
Improves
mental capacity and agility due to increased and improved blood flow
into the brain.
Increases
self esteem and the sense of well being facilitating a good mood.
Exercising
increases oxygen uptake by the body by up to 5 times. This good supply
of oxygen is associated with reduced cancer.
American Institute of Cancer Research (AICR) in fact recommends
physical activities including moderate exercising such as brisk walking
for 30 minutes a day and vigorous activity such as jogging or walking a
mile in 15 minutes.
However research is showing that it is the more vigorous exercising
that is more beneficial for significant reduction of breast and colon
cancer compared to moderate exercising. All in all it is the aerobic
type that has the most benefits for increasing well-being
This
content is reviewed periodically and is subject to
change as new information on weight loss becomes
available. The information is intended for
educational purposes only. Please
consult your healthcare provider before beginning
any kind of weight loss program