NFPT Cardiovascular Training and Conditioning 1 — Questions and Answers
Question 1: Which energy system is primarily used during low-intensity, long-duration aerobic exercise?
- ATP-PC (phosphocreatine) system
- Anaerobic glycolysis
- Aerobic oxidative system (Correct answer)
- Creatine phosphate system
Correct answer: Aerobic oxidative system
The aerobic oxidative system uses oxygen to produce ATP and is dominant during sustained, low-to-moderate intensity exercise lasting several minutes or longer.
Question 2: Which formula is most commonly used to estimate maximum heart rate (MHR)?
- 200 - age
- 220 - age (Correct answer)
- 210 - age
- 180 + age
Correct answer: 220 - age
The most widely used estimate for maximum heart rate is 220 minus the client's age, although newer formulas like 207 - (0.7 × age) may be more accurate.
Question 3: What does 'steady-state exercise' mean in the context of cardiovascular training?
- Exercise performed at maximum intensity throughout
- Exercise where oxygen supply meets the working muscles' oxygen demand (Correct answer)
- Exercise alternating between high and low intensity
- Exercise that relies solely on the anaerobic system
Correct answer: Exercise where oxygen supply meets the working muscles' oxygen demand
Steady-state exercise is reached when oxygen delivery and consumption are balanced, allowing the client to sustain activity without accumulating significant lactic acid.
Question 4: The Karvonen formula for calculating target heart rate incorporates which two variables?
- Maximum heart rate and body weight
- Resting heart rate and maximum heart rate (Correct answer)
- Age and VO2max
- Stroke volume and cardiac output
Correct answer: Resting heart rate and maximum heart rate
The Karvonen (heart rate reserve) formula uses the difference between maximum heart rate and resting heart rate, then adds resting heart rate back after applying the desired intensity percentage.
Question 5: Which type of cardiovascular training involves alternating between high-intensity efforts and recovery periods?
- Continuous steady-state training
- Circuit training
- Interval training (Correct answer)
- Long slow distance training
Correct answer: Interval training
Interval training systematically alternates between higher-intensity work bouts and lower-intensity recovery periods to improve cardiovascular capacity and metabolic conditioning.
Question 6: What does VO2max represent in cardiovascular fitness?
- The maximum volume of carbon dioxide a person can exhale
- The maximum rate at which the body can consume oxygen during exercise (Correct answer)
- The minimum oxygen required at rest
- The total lung capacity at peak inspiration
Correct answer: The maximum rate at which the body can consume oxygen during exercise
VO2max is the gold standard measure of cardiorespiratory fitness, reflecting the maximum volume of oxygen the body can utilize per minute during intense exercise.
Question 7: Which heart rate zone (as a percentage of MHR) is commonly referred to as the 'fat-burning zone'?
- 90–100% MHR
- 80–90% MHR
- 60–70% MHR (Correct answer)
- 50–55% MHR
Correct answer: 60–70% MHR
The 60–70% MHR zone relies more heavily on fat as a fuel source due to lower intensity, though total caloric burn is higher at greater intensities.
NFPT Cardiovascular Training and Conditioning 1
Which energy system is primarily used during low-intensity, long-duration aerobic exercise?