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#Post#: 8--------------------------------------------------
Fats for performance
DIR By: King Kong
Date: May 5, 2013, 2:46 am
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Fats
Fat also provides body fuel. For moderate exercise, about half
of the total energy expenditure is derived from free fatty acid
metabolism. If the event lasts more than an hour, the body may
use mostly fats for energy. Using fat as fuel depends on the
event's duration and the athlete's condition. Trained athletes
use fat for energy more quickly than untrained athletes.
Consumption of fat should not fall below 15 percent of total
energy intake because it may limit performance. Athletes who
are under pressures to achieve or maintain a low body weight are
susceptible to using fat restriction and should be told that
this will hinder their performance.
Fat may contribute as much as 75 percent of the energy demand
during prolonged aerobic work in the endurance-trained athlete.
There is evidence that the rate of fat metabolism may be
accelerated by ingesting caffeine prior to and during endurance
performance. However, insomnia, restlessness and ringing of the
ears can occur with caffeine consumption. Furthermore, caffeine
acts as a diuretic and athletes want to avoid the need to
urinate during competition
Reference Colorado State University Extension
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