Diet & Exercise 3

Question 1

Which mineral is most critical for oxygen transport in the blood and directly impacts exercise endurance?

Accepted Answer

Iron

Answer

Iron is a core component of hemoglobin, which carries oxygen from the lungs to working muscles during aerobic exercise.

Question 2

What is 'carbohydrate periodization' in an athletic diet?

Accepted Answer

Rotating carbohydrate intake based on training intensity and volume

Answer

Carbohydrate periodization means strategically adjusting carb intake to match training demands — more on hard days, less on easy or rest days.

Question 3

Post-exercise muscle protein synthesis is maximally stimulated by consuming approximately how many grams of high-quality protein?

Accepted Answer

20–40 g

Answer

Studies show 20–40 g of leucine-rich protein effectively maximizes muscle protein synthesis; amounts above this offer diminishing returns per meal.

Question 4

Which type of exercise is most effective for improving insulin sensitivity?

Accepted Answer

Combined aerobic and resistance training

Answer

A combination of aerobic and resistance exercise produces the greatest improvements in insulin sensitivity by targeting multiple glucose-uptake pathways.

Question 5

Sodium loss through sweat during prolonged exercise can lead to a condition called what?

Accepted Answer

Hyponatremia

Answer

Hyponatremia (low blood sodium) can result from heavy sweating combined with drinking large volumes of plain water without sodium replacement.

Diet Practice Test

Diet Practice Test

Diet & Exercise 3