TheoryISSA Group Fitness Prep Practice Test Video
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Q1Which energy system is primarily used during a 45-minute moderate-intensity aerobics class?
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✓ Correct answer: Aerobic system
The aerobic energy system is the primary source of energy during sustained, moderate-intensity activities lasting longer than a few minutes, making it the main system used during typical aerobics classes.
Q2Which muscle group is primarily responsible for extending the knee?
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✓ Correct answer: Quadriceps
The quadriceps muscle group, located on the front of the thigh, is the primary muscle responsible for knee extension, which is crucial in many exercise movements.
Q3What is the primary function of the deltoid muscles?
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✓ Correct answer: Shoulder abduction
The deltoid muscles are responsible for shoulder abduction (lifting the arm away from the body) and are crucial for overhead movements in exercise.
Q4During which type of muscle contraction does the muscle shorten while generating force?
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✓ Correct answer: Concentric
A concentric contraction occurs when the muscle shortens while generating force, such as during the lifting phase of a bicep curl.
Q5What is the primary function of mitochondria in muscle cells during exercise?
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✓ Correct answer: Produce ATP for energy
Mitochondria are the cellular powerhouses that produce ATP through aerobic metabolism, providing energy for sustained exercise.
Q6Which blood vessels carry oxygen-rich blood away from the heart?
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✓ Correct answer: Arteries
Arteries carry oxygen-rich blood away from the heart to supply working muscles and organs with necessary oxygen during exercise.
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