Kay is an aspiring 800-meter track athlete who has read various nutrition books with the hope of finding the ideal diet for her sport.

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Kay is an aspiring 800-meter track athlete who has read various nutrition books with the hope of finding the ideal diet for her sport.

Kay is an aspiring 800-meter track athlete who has read various nutrition books with the hope of finding the ideal diet for her sport. From her reading she has learned that fats yield more calories per gram than carbohydrates. In addition, she knows that dietary proteins are needed to help her muscles recover from training and additionally can be used for energy. She is now convinced that one of the popular high-fat, high-protein, low-carbohydrate diets is her best choice. Her coach disagrees with her decision. She recommends that Kay speak with a sports nutrition professional prior to changing her current diet in which the majority of calories come from carbohydrates.

  1. Bioenergetically speaking, is Kay on the right track with her thinking? Why or Why not?
  2. What energy system does an athlete running the 800-meter event rely on for energy?
  3. Is a diet of energy-dense fats really better for Kay’s event?
  4. How would you explain to Kay why she should or should not follow this new diet?
 

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