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NSCA CSCS EXAM REVIEW QUESTIONS AND ANSWERS 100% PASS

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NSCA CSCS EXAM REVIEW QUESTIONS AND ANSWERS 100% PASS Which of the following substances regulates muscle actions? potassium calcium troponin tropomyosin - ANSWER-calcium Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit? acetylcholine ATP creati...

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  • November 11, 2024
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NSCA CSCS EXAM REVIEW QUESTIONS

AND ANSWERS 100% PASS


Which of the following substances regulates muscle actions?




potassium


calcium


troponin


tropomyosin - ANSWER✔✔-calcium


Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit?




acetylcholine


ATP


creatine phosphate


serotonin - ANSWER✔✔-acetylcholine


When throwing a baseball, an athlete's arm is rapidly stretched just before throwing the ball. Which of

the following structures detects and responds to that stretch by reflexively increasing muscle activity?




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, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED


golgi tendon organ


muscle spindle


extrafusal muscle


pacinian corpuscle - ANSWER✔✔-muscle spindle


From which of the following is the heart's electrical impulse normally initiated?




AV node


SA node


the brain


the sympathetic nervous system - ANSWER✔✔-SA node


Which of the following occurs during the QRS complex of a typical ECG?


1. depolarization of the atrium


2. repolarization of the atrium


3. repolarization of the ventricle


4. depolarization of the ventricle


a. 1 and 3 only


b. 2 and 4 only


c. 1, 2, and 3 only


d. 2, 3, and 4 only - ANSWER✔✔-b. 2 and 4 only

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Which of the following is the definition of power?




mass x acceleration


force x distance


force x velocity


torque x time - ANSWER✔✔-force x velocity


To compare performances of Olympic weightlifters of different body weights, the classic formula divides

the load lifted by the athlete's




body weight


body weight squared


lean body weight


body weight to the two-thirds power - ANSWER✔✔-body weight to the two-thirds power


During a free weight exercise, muscle force varies with which of the following?




1. perpendicular distance from the weight to the body joint


2. joint angle


3. movement acceleration


4. movement velocity squared

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a. 1 and 2 only


b. 1 and 4 only


c. 1, 2, and 3 only


d. 2, 3, and 4 only - ANSWER✔✔-a. 1 and 2 only (perpendicular distance from the weight to the body

joint AND joint angle)


A vertical jump involves knee, hip, and shoulder movement primarily in which of the following

anatomical planes?




sagittal


perpendicular


frontal


transverse - ANSWER✔✔-sagittal


An athlete is performing a concentric isokinetic elbow flexion and extension exercise. Which of the

following type(s) of lever occur(s) at the elbow during this exercise?




1. 1st class


2. 2nd class


3. 3rd class



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