NSCA CSCS EXAM LATEST ACTUAL EXAM
2025 With Questions and Answers 100%
Pass Solution
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?
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
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
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
a. 1 only
b. 2 only
c. 1 and 3 only
d. 2 and 3 only - ANSWER>>c. 1 and 3 only
Which of the following substances can be metabolized anaerobically?
glycerol glucose
amino acids
free fatty acids - ANSWER>>glucose
Which of the following reactions is the primary cause of metabolic acidosis
(decrease in intramuscular pH during high-intensity, fatiguing exercise)?
ATP = ADP + Pi + H+
, pyruvate + NADH = lactate + NAD+ ADP +
creatine phosphate = ATP + creatine
fructose-6-phosphate = fructose-1,6-biphosphate - ANSWER>>ATP = ADP
+ Pi + H+
Which of the following energy systems produces ATP at the quickest rate?
phosphagen
aerobic glycolysis
fat oxidation
fast glycolysis - ANSWER>>phosphagen
Approximately how many net ATP are produced via the oxidative energy
system from the metabolism of one molecule?
27
34
38
41 - ANSWER>>38
Which of the following energy substrates cannot be depleted during
extreme exercise intensities or durations?
creatine phosphate glycogen
water
ATP - ANSWER>>ATP
After a bout of resistance training, acute hormonal secretions provide all of
the following information to the body EXCEPT
amount of physiological stress metabolic
demands of exercise
type of physiological stress
energy expended - ANSWER>>energy expended
Which of the following hormones enhance(s) muscle tissue growth?
2025 With Questions and Answers 100%
Pass Solution
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?
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
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
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
a. 1 only
b. 2 only
c. 1 and 3 only
d. 2 and 3 only - ANSWER>>c. 1 and 3 only
Which of the following substances can be metabolized anaerobically?
glycerol glucose
amino acids
free fatty acids - ANSWER>>glucose
Which of the following reactions is the primary cause of metabolic acidosis
(decrease in intramuscular pH during high-intensity, fatiguing exercise)?
ATP = ADP + Pi + H+
, pyruvate + NADH = lactate + NAD+ ADP +
creatine phosphate = ATP + creatine
fructose-6-phosphate = fructose-1,6-biphosphate - ANSWER>>ATP = ADP
+ Pi + H+
Which of the following energy systems produces ATP at the quickest rate?
phosphagen
aerobic glycolysis
fat oxidation
fast glycolysis - ANSWER>>phosphagen
Approximately how many net ATP are produced via the oxidative energy
system from the metabolism of one molecule?
27
34
38
41 - ANSWER>>38
Which of the following energy substrates cannot be depleted during
extreme exercise intensities or durations?
creatine phosphate glycogen
water
ATP - ANSWER>>ATP
After a bout of resistance training, acute hormonal secretions provide all of
the following information to the body EXCEPT
amount of physiological stress metabolic
demands of exercise
type of physiological stress
energy expended - ANSWER>>energy expended
Which of the following hormones enhance(s) muscle tissue growth?
