2021-08-09 CSCS Strength and Conditioning Coach Study Question:
Which of the following energy system enzymes plays a greater role in powerlifting, considering the metabolic demands of this sport.
(A) Creatine Kinase
(B) Hormone-Sensitive Lipase
(C) Lactate Dehydrogenase
(D) Phosphofructokinase (PFK)
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(A) Creatine Kinase
This is a two-part question. Powerlifting is an extremely high-intensity, short-duration activity. Thus, the primary energy system used is the phosphagen system. The phosphagen system replenishes ATP through the use of creatine kinase enzyme which allows a phosphate group from creatine phosphate to be added to an ADP molecule, creating ATP.
Hormone-sensitive lipase is an enzyme that liberates fatty acids from fat cells to be used in beta-oxidation. Lactate dehydrogenase creates lactate from pyruvate, allowing NADH to convert back to NAD+, allowing glycolysis to continue. Phosphofructokinase is the rate-limiting step of glycolysis in which fructose-6-phosphate picks up an additional phosphate from ATP.
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The Certified Strength and Conditioning Specialist (CSCS) exam by the National Strength and Conditioning Association (NSCA) is a four-hour-long, pencil and paper or computer-based examination. The Certified Strength and Conditioning Specialist exam has two sections: “Scientific Foundations” and “Practical / Applied.” Each of these sections consist of questions that the National Strength and Conditioning Association (NSCA) feels are relevant to test the knowledge and experience of a candidate for the Certified Strength and Conditioning Specialist (CSCS) professional credential. Certified strength conditioning specialist comprehensive questions from the Scientific Foundations section include anatomy, exercise physiology, biomechanics, and nutrition. certified strength conditioning specialist comprehensive questions from the Practical / Applied section include program design, exercise techniques, testing and evaluation, and organization / administration (NSCA, 2015).
2021-08-09 CSCS Daily Study Question