WITH COMPREHENSIVE THEORY AND
PRACTICAL QUESTIONS
⫸ What are the 2 categories of energy systems (not the 4 types)?
Answer: Anaerobic metabolism (no oxygen)
Aerobic metabolism (oxygen)
⫸ What is ATP-CP (creatine phosphagen)? Answer: Fastest way to
synthesize ATP
Maximum intensity for up to 10 seconds
Used for the start of exercise (ex: lifting heavy objects, 100m sprint)
⫸ What are the 2 phases of ATP-CP (creatine phosphagen)? Answer:
Provides enough fuel for 1-2 seconds of maximum muscle effort using
stored ATP
Breaks down creatine phosphate (backup ATP) to create energy
⫸ What is anaerobic glycolysis? Answer: Maximum intensity for up to
2 minutes
Breaks down glycogen stored in the muscle or glucose in the blood
Pyruvate and 2 glucose or 3 glycogen ATP molecules are formed
Used for strenuous activities (ex: basketball, boxing, wrestling, tennis)
,⫸ What is aerobic glycolysis? Answer: Moderate intensity for more
than 2 minutes
Breaks down glucose or glycogen into pyruvate and 2 glucose or 3
glycogen molecules of ATP
Followed by the Krebs cycle and electron transport chain
Used for steady-state exercise (ex: long run, long swim, cross country
skiing)
⫸ What is fatty acid oxidation? Answer: - Muscle cells use fatty acid to
create ATP
- Fatty acid is hard to break down
- Used for daily living activities (ex: sitting up straight, leisurely walk)
- Fatty acid + O2 = 100ATP + CO2 +H2O + heat
⫸ Can all 4 types of energy systems work at the same time? Answer:
Yes
⫸ What does ATP stand for? Answer: adenosine triphosphate (1
adenosine + 3 phosphate molecules)
⫸ What is the heart? Answer: Acts as a pump to create the pressure
required to move blood around the body and through blood vessels. Split
into the right and left pump, each made of an atrium and a ventricle.
,⫸ What are the 4 chambers of the heart? Answer: Right atrium
Right ventricle
Left atrium
Left ventricle
⫸ What does the right atrium do? Answer: Receives oxygen-poor blood
from the tissues and passes it to the right ventricle.
⫸ What does the right ventricle do? Answer: Receives oxygen-poor
blood from the right atrium and passes it to the lungs for waste removal
and reoxygenation (pulmonary circulation).
⫸ What does the left atrium do? Answer: Receives oxygenated blood
from the lungs and passes it to the left ventricle.
⫸ What does the left ventricle do? Answer: Receives oxygenated blood
from the left atrium and moves the blood away from the heart via
arteries to body tissues (systemic circulation).
⫸ Can the heart rate increase indefinitely? Answer: No, your heart rate
increases with exercise to maximal levels until it plateaus.
⫸ What are the 4 main components of the blood circulatory system?
Answer: Veins
, Arteries
Arterioles
Capillaries
⫸ What do veins do? Answer: Bring blood back to the heart either from
the lungs to the left side or from body tissues to the right side.
⫸ What do arteries do? Answer: Carry blood away from the heart either
to the lungs from the right side or to body tissues from the left side.
⫸ What do arterioles do? Answer: Microscopic blood vessels that
arteries feed into before branching into capillaries.
⫸ What do capillaries do? Answer: The smallest blood vessels fed into
by the arterioles. Blood travels inside. This is how oxygen gets from
your blood to your muscle cells.
⫸ What is blood pressure? Answer: The force blood exerts on arterial
walls.
⫸ What are the 3 main passive cardio assessment tests? Answer:
Resting heart rate (RHR)
Heart rate variability
Resting blood pressure