Kelly (66 kg) is a 48-year-old race walker who participates in half marathons. She walks 5 to 6 days per week, 1 to 2 hours per day, at a moderate to high intensity. Kelly makes an appointment with you to determine how much carbohydrate she should be consuming daily to keep her glycogen levels as high as possible. She also is interested in knowing how to properly “carbohydrate load” the week before a race.