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.
Essentials of Strength Training & Conditioning 3rd edition p. 95, 24 – 29
These CSCS exam practice questions were created to help users study for the Certified Strength and Conditioning Specialist certification exam from the National Strength and Conditioning Association (NSCA). Using CSCS exam practice questions is an efficient way to study the most relevant material for the Certified Strength and Conditioning Specialist exam. CSCS exam practice questions can help you to remember important concepts and test your knowledge of the material in a no-pressure environment. The Certified Strength and Conditioning Specialist designates that a fitness professional has the scientific and practical knowledge necessary to assist athletes to improve their physical performance.
If you’re like most strength and conditioning specialists, chances are that you like sports and you have a competitive mindset. For people who are competitive, doing practice questions is awesome because 1) they like to win, and 2) the sting of getting a question wrong burns the correct answer into the mind of a competitive person unlike any other learning method.
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).