Ch. 13 1-14
March 28, 2008
1. Six categories of nutrients: Carbohydrates, Fats (lipids), Protein, Vitamins,
2. Dietary fat, especially cholesterol and triglycerides, plays a major role in
cardiovascular disease, and excessive fat intake also has been linked to other
diseases such as cancer, diabetes, and obesity. But despite the negative
publicity, fat serves many vital functions in the body.
It is an essential component
of cell membranes and nerve fibers.
It is a primary energy source, providing up
to 70% of our total energy in the resting state. Its supports and cushions vital
All steroid hormones in the body are produced from cholesterol. -Fat-
soluble vitamins gain entry into, are stored in, and are transported through the
body via fat.
Body heat is preserved by insulating subcutaneous fat layer.
3. The protein requirements for adults are as followed: For men it would be 58-63
and for women it would be 44-50.
4. Amino acids are the body’s building blocks, so protein is essential for the
growth and development of body tissues. In fact, muscle was once thought to
consume itself as fuel for its own actions, so protein supplementation was
considered necessary to prevent muscle wasting. It was generally believed that
the RDA of 0.8g of protein per kilogram of body weight each day would
adequately meet the demands of hard training.
5., Vitamin E, B Complex Vitamins and Phosphorous are vitamins that the
athletes sometimes are deficient in.
6. Even minimal changes in your body’s water content cam impair endurance
performance, Without adequate fluid replacement, a subject’s exercise tolerance
shows a pronounced decrease during long-term activity because of water loss
through sweating. Fluid loss decreases plasma volume. This decreases blood
pressure, which in turn reduces blood flow to the muscles and skin. In an effort to
overcome this, heart rate increases. The effect of dehydration on performance in
muscular strength, muscular endurance, and anaerobic types of activities is not