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Fitness Tip: Carbohydrate Requirements

For
all people that train, but in particular any athlete or
fitness fanatic who is doing a reasonable volume (7-10 hours a
week) of training or competing it is important that they
consume an adequate amount of carbohydrate in their diet. The
reason for this is that carbohydrate is the body's preferred
and most easily utilised fuel. So if your total hours of
training fit somewhere into this category, then you are going
to have to consume 7-10g of carbohydrate per kg of bodyweight
per day. If you're training 15-20 hours a week then you'll
need to consume as much as 12g of carbohydrate per kg of
bodyweight to maintain your body's glycogen stores.
The majority of those carbohydrates should come from low
glycaemic index foods (e.g. wholegrain bread, some cereals,
most types of pasta and some types of rice).
For optimal performance you also need to be aware of the type
of carbohydrate you should consume pre and post training or
competition. In the two hours prior to training or competition
you should consume 1-2g of carbohydrate per kg of bodyweight,
this needs to be low GI to ensure that the energy is released
slowly and evenly and at about the time of your
training/competition. If your training or competition lasts
longer than 90 minutes then you should begin to consume
0.2-0.6g of high GI carbohydrate (e.g. sports drink) per kg
per hour at the 90 min mark, as the body's carb levels will be
nearing depletion at this point. Within the first hour of
finishing your training or competition you need to consume
1-2g/kg of high GI carbohydrate (e.g. some cereals, white
bread, baked potatoes, sports drinks), as this will be more
quickly absorbed than low GI carbohydrates.
These guidelines are more applicable to athletes with a
moderate to high volume of training. However carbohydrate
selection is an important nutritional aspect for all people to
be aware of.
1 slice of bread = 10-15g of carbohydrate
2 weet-bix = 20g
1 banana = 20-25g
1 600ml Powerade = 48g
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