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# Chapters 3-6: Energy, Carbohydrates, Fats and Proteins

by | Mar 4, 2021 | College (3-4), Nutrition/Dietary

Tre’Shaun is a 20 year-old college athlete. He is 6’3” and weighs 235 pounds. He is currently in the off-season from basketball, and his team is working out together in the weight room and on the track five days each week. They are lifting weights to gain muscle and doing high-intensity interval training on the track to improve their endurance. Apply the knowledge you have gained from the past four chapters about energy, carbohydrates, fat and protein for athletes to answer the following questions about Tre’Shaun and his training needs.

1. On Monday, Tre’s team completed one-rep max exercises on bench press, back squat and power clean. What energy system was primarily engaged when Tre’s completed each one-rep max? Which energy substrate is primarily used during this activity? (2 pts)

2. On Thursday, Tre’s team worked on the track doing sprint intervals. They completed 10 rounds of 200 yard dash sprints with a 60 second rest between each. What energy system was primarily engaged when Tre completed each sprint interval? Which energy substrate is primarily used during this activity? (2 pts)

3. Tre comes to see you for some information about his nutrient needs. One of the first things he wants to know is approximately how many calories he needs each day. Next he wants to know how that translates into grams of carbohydrates, protein and fat.

a. Using the equation provided to you in your textbook and PowerPoint, find Tre’s Estimated Energy Requirement (EER). Show your work by providing the EER equation and all the values you used to determine his EER. Round to the nearest whole number. (Tre is considered to be very active. EER is calculated with weight in kilograms and height in meters.) (3 pts)

b. Athletes need a high-carbohydrate diet. The AMDR is 45-65%, but for athletes it is somewhat higher. What percentage of Tre’s daily calories should come from carbohydrate if he is eating a high carbohydrate diet (expressed as a range)? (1 pt)

c. Based on your answers from parts a and b, how many grams of carbohydrate does Tre’s need each day (expressed as a range)? (2 pts)

d. An athlete’s carbohydrate needs can also be expressed in grams per kilogram of body weight. What are Tre’s carbohydrate needs expressed in grams/kilogram? (1 pt)

e. Based on your answer from part d, how many grams of carbohydrate does Tre need each day (expressed as a range)? (2 pts)

f. What are Tre’s daily fiber needs? (1 pt)

g. Despite what some believe, athletes still need a significant amount of fat in their diet. What is the AMDR for fat? (1 pt)

h. Based on your answers from parts a and g, how many grams of fat does Tre need each day (expressed as a range)? (2 pts)

i. An athlete’s protein needs are greater than the RDA (0.8 grams/kg) used for most individuals. Expressed in a range of grams per kilogram of body weight, what are Tre’s protein needs as an active individual? (1 pt)

j. Based on your answer from part i how many grams of protein does Tre need each day (expressed as a range)? (2 pts)

k. List at least two healthy choices you could recommend for Tre to consume from each food group. (3 pts)