Practice Test GeeksACSM Practice Test
← All ACSM Flashcard Decks

Exercise Science Flashcards

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

Read the first 7 Exercise Science flashcards as text

  1. Which hormone is primarily responsible for mobilizing free fatty acids from adipose tissue during prolonged aerobic exercise?

    Answer: Epinephrine

    Epinephrine activates hormone-sensitive lipase in adipose tissue, stimulating lipolysis and releasing free fatty acids into the bloodstream during exercise.

  2. What is the ventilatory threshold and how does it relate to exercise intensity?

    Answer: The intensity where ventilation increases disproportionately to VO2 due to CO2 buffering

    The ventilatory threshold represents the exercise intensity at which CO2 production from bicarbonate buffering of lactate drives a nonlinear increase in ventilation.

  3. Which of the following adaptations occurs in skeletal muscle mitochondria with long-term aerobic training?

    Answer: Increased mitochondrial density and oxidative enzyme activity

    Chronic aerobic training increases mitochondrial biogenesis, elevating both the number and size of mitochondria and enhancing oxidative enzyme activity.

  4. What is the SAID principle in exercise science?

    Answer: Specific Adaptations to Imposed Demands

    SAID stands for Specific Adaptations to Imposed Demands, meaning the body adapts specifically to the type of stress placed upon it.

  5. During submaximal exercise in a hot environment, which cardiovascular adjustment helps maintain core temperature?

    Answer: Cutaneous vasodilation redirecting blood to the skin

    Cutaneous vasodilation shunts blood to the skin to facilitate heat dissipation via radiation and convection, which competes with muscle blood flow demands.

  6. What is the effect of altitude on VO2max and the primary physiological cause?

    Answer: VO2max decreases due to reduced arterial oxygen content

    At altitude, reduced partial pressure of oxygen lowers arterial oxygen saturation (SaO2), decreasing oxygen delivery to muscles and reducing VO2max.

  7. Which of the following describes the principle of reversibility in exercise training?

    Answer: Detraining leads to loss of physiological adaptations gained through exercise

    Reversibility (detraining) occurs when training ceases, causing progressive loss of cardiovascular and muscular adaptations within weeks.