ACE Cardiorespiratory Program Design 5 — Questions and Answers
Question 1: Which physiological adaptation is the PRIMARY long-term benefit of consistent aerobic endurance training?
- Increased resting heart rate
- Increased stroke volume at rest and during exercise (Correct answer)
- Decreased blood plasma volume
- Decreased mitochondrial density
Correct answer: Increased stroke volume at rest and during exercise
Chronic aerobic training enlarges the left ventricle (cardiac hypertrophy), dramatically increasing stroke volume and thus cardiac output.
Question 2: Fartlek training differs from structured interval training PRIMARILY because it:
- Uses only anaerobic energy systems
- Involves random, unstructured changes in pace and terrain (Correct answer)
- Requires heart rate monitoring at all times
- Is limited to swimming and cycling
Correct answer: Involves random, unstructured changes in pace and terrain
Fartlek (Swedish for 'speed play') varies intensity spontaneously based on feel or terrain rather than prescribed work-rest ratios.
Question 3: For a client with obesity and low fitness, which cardiorespiratory training approach minimizes joint stress while still elevating heart rate?
- High-impact aerobics
- Outdoor trail running
- Water aerobics or pool walking (Correct answer)
- Jump rope training
Correct answer: Water aerobics or pool walking
Aquatic exercise provides buoyancy that reduces joint loading by up to 90% while still allowing elevated heart rate and caloric expenditure.
Question 4: The principle of specificity in cardiorespiratory training means that a cyclist training only on a bike will see:
- Equal improvement in swimming performance
- Greater cycling performance gains than running performance gains (Correct answer)
- No cardiovascular adaptation whatsoever
- Greater running performance than cycling performance gains
Correct answer: Greater cycling performance gains than running performance gains
Specificity dictates that adaptations are greatest in the trained mode, so cycling training primarily improves cycling economy and performance.
Question 5: A client completes a 1-mile walk test and their heart rate at completion is used to estimate VO2max. Which test protocol does this describe?
- Astrand-Rhyming cycle ergometer test
- Rockport Fitness Walking Test (Correct answer)
- 3-minute step test
- Cooper 12-minute run test
Correct answer: Rockport Fitness Walking Test
The Rockport Fitness Walking Test uses completion time and post-test heart rate from a 1-mile walk to estimate VO2max.
Question 6: When progressing a client's cardiorespiratory program, the ACE IFT model recommends increasing which variable FIRST?
- Intensity
- Frequency
- Duration (Correct answer)
- Mode complexity
Correct answer: Duration
ACE guidelines recommend increasing duration (time) before intensity to build aerobic base safely, minimizing injury risk.
Question 7: Which statement BEST describes the excess post-exercise oxygen consumption (EPOC) effect following high-intensity cardio?
- EPOC is identical after low and high-intensity exercise
- Elevated metabolism persists for minutes to hours post-exercise to restore homeostasis (Correct answer)
- EPOC only occurs during anaerobic exercise
- EPOC reduces resting heart rate immediately after exercise
Correct answer: Elevated metabolism persists for minutes to hours post-exercise to restore homeostasis
EPOC reflects the elevated oxygen consumption after exercise as the body restores oxygen stores, clears lactate, and returns to baseline.
ACE Cardiorespiratory Program Design 5
Which physiological adaptation is the PRIMARY long-term benefit of consistent aerobic endurance training?