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ExRx Test 1 Questions and Answers Latest Version Already Passed
What is the primary physiological effect of aerobic training on resting heart rate?✔✔ It decreases resting heart rate.
Which muscle group is primarily responsible for hip extension during a squat?✔✔ Gluteus maximus.
Why is it important to warm up before engaging in vigorous physical activity?✔✔ To increase blood flow and reduce the risk of injury.
What happens to stroke volume as exercise intensity increases up to moderate levels?✔✔ It increases.
Which energy system is primarily used during a 100-meter sprint?✔✔ Phosphagen system.
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What is a common adaptation in muscle fibers as a result of resistance training?✔✔ Increased cross-sectional area (hypertrophy).
How does regular cardiovascular exercise affect blood pressure over time?✔✔ It lowers resting blood pressure.
What is the main purpose of a VO₂ max test?✔✔ To measure the maximum amount of oxygen the body can utilize during intense exercise.
Which joint action occurs at the knee when performing a leg curl?✔✔ Flexion.
How does dehydration affect physical performance?✔✔ It impairs endurance and increases fatigue.
Which term describes the muscle that contracts to produce movement?✔✔ Agonist.
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What is the primary site of glycogen storage in the body?✔✔ Liver and skeletal muscles.
Why is protein important after resistance training?✔✔ To support muscle repair and growth.
Which variable is most commonly increased to improve muscular endurance?✔✔ Repetitions.
What is a safe rate of weight loss per week for most individuals?✔✔ 1 to 2 pounds.
What does the term "progressive overload" mean in training?✔✔ Gradually increasing the stress placed on the body.
Which body composition method uses air displacement?✔✔ Bod Pod.
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