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ACE Exercise Science & Physiology Flashcards

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

Read the first 6 ACE Exercise Science & Physiology flashcards as text

  1. Which training principle states that fitness gains are lost when training is discontinued?

    Answer: Reversibility (detraining)

    The principle of reversibility (detraining) indicates that physiological adaptations diminish when regular exercise stimulus is removed.

  2. What happens to muscle glycogen stores during a prolonged, high-intensity group fitness class?

    Answer: They are progressively depleted, reducing high-intensity performance

    Muscle glycogen is the primary carbohydrate fuel for intense exercise, and its depletion leads to fatigue and a reduced ability to sustain high-intensity effort.

  3. Which physiological mechanism allows trained muscles to use oxygen more efficiently during aerobic exercise?

    Answer: Increased mitochondrial density and oxidative enzyme activity

    Aerobic training increases the number and size of mitochondria and upregulates oxidative enzymes, enabling muscles to produce more ATP aerobically.

  4. What is the recommended general guideline for hydration during a moderate-intensity group fitness class?

    Answer: Drink 7–10 oz of fluid every 10–20 minutes during exercise

    The American College of Sports Medicine recommends consuming 7–10 oz of fluid every 10–20 minutes during exercise to maintain hydration.

  5. How does regular resistance training affect the basal metabolic rate (BMR)?

    Answer: It increases BMR by preserving and building metabolically active muscle tissue

    Resistance training builds lean muscle mass, which is metabolically active tissue, leading to a modest but meaningful increase in basal metabolic rate over time.

  6. What is the primary purpose of a warm-up before a group fitness class from an exercise physiology standpoint?

    Answer: To elevate body temperature, increase blood flow, and prepare the neuromuscular system

    A proper warm-up raises core and muscle temperature, increases circulation, and enhances neuromuscular function, reducing injury risk and improving performance.