3a. George is a marathon runner. Describe the changes in the proportion of energy supplied by different energy systems and the fuel used while running. 3b. George is going to run a half-marathon race next week. He will carry a bottle of drink with him during the race. Give him a suggestion on the selection of drinks and give the reasons for your choice.

Nutrition Through The Life Cycle
7th Edition
ISBN:9781337919333
Author:Brown, Judith E.
Publisher:Brown, Judith E.
Chapter12: Child And Preadolescent Nutrition
Section: Chapter Questions
Problem 5RQ: Regarding fluid intake in school-age children, which of the following statements is most correct? a....
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3a. George is a marathon runner. Describe the changes in the proportion of energy supplied by different energy systems and the fuel used while running. 3b. George is going to run a half-marathon race next week. He will carry a bottle of drink with him during the race. Give him a suggestion on the selection of drinks and give the reasons for your choice.
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