Energy expenditure in women.

The use of fat or carbohydrate by the cells will depend to a large extent on the intensity of exercise.

Therefore, when the intensity of the exercise increases, the use of glucose increases as an energy source, accentuating according to sex.

Women, use more fat as a source of energy when they are at rest, but more glucose when given pre-workout.

This may be due to:

a. Greater amount of testosterone in men, and

b. A greater amount of TGIM (intramuscular triglycerides) in women.

TGIM are small reserves of energy that are found in our muscles. Some studies have shown that these "fats" are higher in women than men, helping to meet energy needs during training.

These intramuscular triglycerides are mainly found in type I (oxidative) fibers, so it will allow to maintain the performance during exercises of long duration.