The accuracy in all body composition methods is dependent upon the experience and skill of the test administrator. This is why it is important that once you begin body composition evaluations, the same person should administers the test each time in order to reduce the potential error. In fact, fat is a very necessary component of human existence. It is when there is too much fat that problems can arise. Fat is usually divided into two types, essential fat and stored fat.
Essential fat is the fat that is needed for normal physiological functioning.
Women have more because extra fat is needed in gender specific areas of the body, like the breast and uterus areas. Individuals with a lot of stored fat typically sweat quite a bit during physical activity. It provides energy to the body during rest and low level activity.