Fitness Lessons Fitness 4 — Questions and Answers
Question 1: What does EPOC stand for and why does it matter for fitness?
- Extra Physical Output Cycle — measures workout volume
- Excess Post-exercise Oxygen Consumption — reflects calories burned after exercise (Correct answer)
- Elevated Pulse Over Capacity — indicates overtraining
- Extended Period of Caloric Output — daily energy use
Correct answer: Excess Post-exercise Oxygen Consumption — reflects calories burned after exercise
EPOC (Excess Post-exercise Oxygen Consumption) is the increased rate of oxygen intake after exercise, reflecting additional calories burned during recovery.
Question 2: Which exercise primarily targets the transverse abdominis?
- Crunches
- Leg raises
- Plank (Correct answer)
- Sit-ups
Correct answer: Plank
The plank is highly effective at engaging the transverse abdominis, the deep core muscle responsible for spinal stability.
Question 3: What is the primary difference between concentric and eccentric muscle contractions?
- Concentric shortens the muscle; eccentric lengthens it under load (Correct answer)
- Concentric uses slow-twitch fibers; eccentric uses fast-twitch fibers
- Concentric is involuntary; eccentric is voluntary
- Concentric occurs during rest; eccentric occurs during movement
Correct answer: Concentric shortens the muscle; eccentric lengthens it under load
Concentric contractions shorten the muscle (e.g., lifting a weight), while eccentric contractions lengthen it under load (e.g., lowering a weight).
Question 4: Which vitamin is produced by the body through sunlight exposure and supports bone health?
- Vitamin A
- Vitamin C
- Vitamin D (Correct answer)
- Vitamin K
Correct answer: Vitamin D
Vitamin D is synthesized in the skin upon sun exposure and is essential for calcium absorption and bone health, making it critical for athletes.
Question 5: What does 'progressive overload' mean in strength training?
- Gradually increasing training stimulus over time to continue adaptations (Correct answer)
- Performing the same workout at maximum effort each session
- Alternating between heavy and light days each week
- Reducing rest periods to increase workout difficulty
Correct answer: Gradually increasing training stimulus over time to continue adaptations
Progressive overload means gradually increasing resistance, volume, or intensity over time to continuously challenge muscles and drive adaptation.
Question 6: Which of the following best describes a 'compound movement'?
- An exercise targeting one muscle in isolation
- A movement involving multiple joints and muscle groups (Correct answer)
- A stretch performed at the end of a workout
- A cardio exercise performed on a machine
Correct answer: A movement involving multiple joints and muscle groups
Compound movements involve multiple joints and muscle groups simultaneously, such as squats, deadlifts, and bench presses.
Question 7: What does BMI measure, and what is its primary limitation for athletes?
- Body fat percentage; it doesn't account for hydration levels
- Muscle-to-fat ratio; it only measures the lower body
- Weight relative to height; it doesn't distinguish between muscle and fat mass (Correct answer)
- Cardiovascular fitness; it ignores strength levels
Correct answer: Weight relative to height; it doesn't distinguish between muscle and fat mass
BMI (Body Mass Index) measures weight relative to height but cannot distinguish between lean muscle mass and fat, making it misleading for muscular individuals.
Fitness Lessons Fitness 4
What does EPOC stand for and why does it matter for fitness?