NSCA CSCS (Latest 2023\/ 2024 Update) Questions and Verified Answers | 100% Correct| Grade A<\/p>\n\n\n\n
NSCA CSCS (Latest 2023\/ 2024 Update)
Questions and Verified Answers | 100%
Correct| Grade A
Q: Which of the following substances regulates muscle actions?
a. potassium
b. calcium
c. troponin
d. tropomyosin
Answer:
b. calcium
Q: Which of the following substances acts at the neuromuscular junction to excite the muscle
fibers of a motor unit?
a. acetylcholine
b. ATP
c. creatine phosphate
d. serotonin
Answer:
a. acetylcholine
Q: 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?
a. Golgi tendon organ
b. muscle spindle
c. extrafusal muscle
d. Pacinian corpuscle
Answer:
b. muscle spindle<\/p>\n\n\n\n
Q: From which of the following is the heart’s electrical impulse normally initiated?
a. AV node
b. SA node
c. the brain
d. the sympathetic nervous system
Answer:
b. SA node
Q: Which of the following occurs during the QRS complex of a typical ECG?
I. depolarization of the atrium
II. repolarization of the atrium
III. repolarization of the ventricle
IV. depolarization of the ventricle
a. I and III only
b. II and IV only
c. I, II, and III only
d. II, III, and IV only
Answer:
b. II and IV only
Q: What is a first-class lever and which muscle group represents one?
A. Calves -The load is between the line of pull from the muscle and the fulcrum point
B. Biceps – The fulcrum is between the line of pull and the load
C. Triceps – The fulcrum is between the line of pull and the load
Answer:
C. Triceps – The fulcrum is between the line of pull and the load
Q: Which anatomical description is accurate?
A. The ankle is proximal to the gastrocnemius
B. The elbow is distal to the glenohumeral joint
C. The piriformis is superior to the lumbar spine<\/p>\n\n\n\n
Answer:
B. The elbow is distal to the glenohumeral joint
Q: The Pull-up is correctly defined as:
A. Sagittal plane open chain
B. Sagittal plane closed chain
C. Frontal plane closed chain
Answer:
C. Frontal plane closed chain
Q: Which muscle has a greater mechanical advantage? Bicep with a moment arm of resistance
of 30cm and moment arm of muscle 3cm, or triceps with a moment arm of resistance of 35cm
and moment arm of muscle 3cm?
A. Bicep
B. Tricep
C. Mechanical Advantage is equal
Answer:
A. Bicep
Q: A tennis serve would primarily occur in which plane of motion?
A. Sagittal
B. Frontal
C. Transverse
Answer:
A. Sagittal
Q: Ben accelerates a 100kg barbell at 1m\/s2, Sean accelerates a 90kg barbell at 2m\/s2, which
athlete produced more force?
A. Ben
B. Sean<\/p>\n\n\n\n
C. They produced the same force
Answer:
A. Ben
Q: Which athlete did more work? Sophia did a clean pull lifting the barbell 1.2 meters with
800N of force. Mia lifted the barbell 1.4 meters with 650N of force.
A. Sophia
B. Mia
C. They produced the same force
Answer:
A. Sophia
Q: Did Julie or Alexis produce more power? Alexis did a jerk with 60KG producing 400J of
work. Her jerk took 0.25 seconds. Julie did a push press with 70KG producing 500J of work in
0.5 seconds. Which athlete produced more power?
A. Alexis
B. Julie
C. They produced the same power
Answer:
A. Alexis
Q: Which of the following is the definition of power?
a. (mass) \u2219 (acceleration)
b. (force) \u2219 (distance)
c. (force) \u2219 (velocity)
d. (torque) \u2219 (time)
Answer:
c. (force) \u2219 (velocity)
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