If your energy levels do not seem to be up where they should
be you could well be suffering from an iron deficiency. I was recently training
a girls football team of whom were struggling in the competition until I
insisted that they have their iron levels checked. Eighty per cent of them were
diagnosed as having lower than acceptable levels. After two months of
supplementation their energy levels showed a marked improvement and they
actually made the grand final that year. I have also found many of my personal
training clients deficient in iron and supplementation has in every case
increased their energy levels and consequently the training effect.
Most of you would know that iron is a mineral and required
for the formation of red blood cells, which actually transport oxygen to your
hard working muscles (hopefully hard working muscles). If iron is deficient in
your system you will suffer fatigue, listlessness and a general lack of energy.
Maintaining your red blood count (haemoglobin) levels is vital for your
performance.
You may not know that iron is one of the most difficult
minerals to absorb and that iron depletion can be increased for an active person
through training-induced losses. Just for you chemistry whizzes, the iron atom
is buried deep within the haemoglobin molecule and has the perfect atomic
structure to not only bind strongly with an oxygen molecule to be transported
around the bloodstream, but loosely enough to give up the bound oxygen when the
muscle needs it. If your levels become depleted you will experience a reduction
in your oxygen carrying capacity, will feel fatigue, tiredness and even
breathlessness after minimal exertion and these are all the classic signs of
Anaemia.
Iron is absolutely crucial for a number of energy releasing
processes through activation of a number of enzymes, some of which are called
catalases. It functions as an electron shuttle, passing and accepting electrons
from other molecules, helping to make and break biochemical reactions that
would otherwise not occur. The trick with iron is to consume it in a way that
is available to your body. The most easily absorbed iron is that which is
bonded to protein molecules (as in meat). An example of making it less
available to the body is drinking tea with a meal as the tannic acid forms
complexes with iron leaving it less available to the body.
With regard to iron loss in menstruating women, monthly
losses amount to an average of 28mg and actually doubling if periods are heavy
or if intrauterine contraceptive devices are used. So Girls, if you aim to be
Slim Supple & Strong with plenty of energy please be conscious of your Iron
Levels.
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