Why
is nutrition important when exercising?
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Adequate nutrition is necessary if the benefits of exercising are
to be achieved and should go hand in hand. During an exercise, the
rate of metabolism (catabolism in this case) increases and that
burns up a lot of calories. This means that there is depletion of
our energy levels and thus must be replaced by proper nutrition.
While exercising, there is increase in the breakdown of carbohydrates
and fats. They all need to be replaced and in cases where the essence
is to build the muscles, will require that, adequate amino acid
sources are ingested to allow the new rate of muscle building triggered
off by the exercise.
The body demands increase tremendously and will take adequate amount
of energy from carbohydrates to power the level of metabolism going
on. Proteinous foods will supply the amino acids needed for muscle
building. All these including micronutrients like B vitamins and
chromium, antioxidants such as vitamins C and E, and minerals such
as calcium and magnesium will be needed at extra quantities. The
level of metabolism releases even more free radicals and as such,
increase mop up action will be needed by anti-oxidants.
You will need to drink more water than you usually do. During exercising,
you loss fluid extremely from sweat and insensible loses due to
increase respiration, and so you are easily dehydrated. This can
lead to heat stroke, hypovolemic shock, renal stone formation etc.
So you will need a lot of water to cool off the exothermic reaction
that is taking place in your body.
There is virtually an increase in every single chemical reaction
in the body. Just as everything else is working overtime, so are
the heart muscles. You will need to supply the heart with adequate
vitamins like B and C, oxygen and other nutrients to ensure that
the electrical activities in the heart continue to meet up the new
demands. More sodium and potassium ions influx and efflux occurs
and nutritional intake should be such that can meet up with these
activities. Depletion of these ions could cause heart block.
Before or after exercises, adequate carbohydrate which is the main
energy source for physical activities should be taken. If you want
to do so before an exercise, you need to allow time for adequate
digestion to occur and commence when the food is no longer much
in the stomach to avoid Angina as blood flow is more to the abdominal
organs thereby depriving the heart. Ideally, we should eat after
a good rest following exercise paying attention to the needs of
the body.
For athletes, wrestlers, boxers and other sports people, that strong
grip and balance in the legs can not be developed if exercises are
not properly complemented by good nutrition. For a strong grip,
the muscles of the hands need to grow bigger and stronger, the leg
muscles must grow bigger too for balance, and the bones are not
going to be strong enough without adequate calcium supply from a
diet rich in fruits, fish and milk.
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