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Sports Nutrition Principles Flashcards

7 cards from real CCSP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Sports Nutrition Principles flashcards as text

  1. An athlete reports consuming a high-protein diet (3g/kg/day). What is the primary risk associated with chronic excessive protein intake in a healthy athlete?

    Answer: Potential renal stress and increased calcium excretion

    Chronically excessive protein intake can strain renal function and promote calciuria, increasing fracture risk over time.

  2. Which amino acid is conditionally essential during periods of high-intensity training or physiological stress?

    Answer: Glutamine

    Glutamine becomes conditionally essential during intense exercise stress as demand exceeds the body's synthetic capacity.

  3. A cyclist competing in a 5-hour road race should primarily rely on which energy substrate during the final hour when intensity increases?

    Answer: Muscle glycogen and exogenous carbohydrate

    At higher intensities, muscle glycogen and ingested carbohydrate become the dominant fuels because fat oxidation cannot sustain the required ATP production rate.

  4. The thermic effect of food (TEF) is highest for which macronutrient?

    Answer: Protein

    Protein has the highest TEF (~20–30%), meaning the body expends more energy digesting and metabolizing it compared to carbohydrate (~5–10%) or fat (~0–3%).

  5. Which index best describes the rate and magnitude of blood glucose rise after consuming a specific food compared to pure glucose?

    Answer: Glycemic index

    The glycemic index (GI) ranks foods on a 0–100 scale based on their postprandial blood glucose response relative to pure glucose.

  6. During the first 30 minutes of moderate-intensity exercise, which substrate provides the GREATEST percentage of energy?

    Answer: Muscle glycogen

    Muscle glycogen is the predominant fuel source during the early phase of moderate exercise before fat mobilization increases.

  7. A sports chiropractor advises a marathon runner to consume 30–60g of carbohydrate per hour during a race. What is the primary physiological rationale?

    Answer: To spare liver glycogen and maintain blood glucose

    Exogenous carbohydrate during prolonged endurance exercise spares liver glycogen and sustains blood glucose, delaying fatigue.