NSCA CSCS EXAM REVIEW; Questions &
Answers 100% Solved
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...
NSCA CSCS EXAM REVIEW; Questions &
Answers 100% Solved
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?
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
Which of the following is the definition of power?
, NSCA CSCS EXAM REVIEW; Questions &
Answers 100% Solved
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
a. 1 and 2 only
, NSCA CSCS EXAM REVIEW; Questions &
Answers 100% Solved
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
a. 1 only
b. 2 only
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