NSCA CSCS EXAM REVIEW || A+ GRADED.
Which of the following substances regulates muscle actions?
potassium
calcium
troponin
tropomyosin correct answers calcium
Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit?
acetylcholine
ATP
creatine phosphate
serotonin correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers c. 1 and 3 only
Which of the following substances can be metabolized anaerobically?
, glycerol
glucose
amino acids
free fatty acids correct answers 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 correct answers ATP = ADP + Pi + H+
Which of the following energy systems produces ATP at the quickest rate?
phosphagen
aerobic glycolysis
fat oxidation
fast glycolysis correct answers phosphagen
Approximately how many net ATP are produced via the oxidative energy system from the
metabolism of one molecule?
27
34
38
41 correct answers 38
Which of the following energy substrates cannot be depleted during extreme exercise intensities
or durations?
creatine phosphate
glycogen
water
ATP correct answers 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 correct answers energy expended
Which of the following hormones enhance(s) muscle tissue growth?
Which of the following substances regulates muscle actions?
potassium
calcium
troponin
tropomyosin correct answers calcium
Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit?
acetylcholine
ATP
creatine phosphate
serotonin correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers 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 correct answers c. 1 and 3 only
Which of the following substances can be metabolized anaerobically?
, glycerol
glucose
amino acids
free fatty acids correct answers 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 correct answers ATP = ADP + Pi + H+
Which of the following energy systems produces ATP at the quickest rate?
phosphagen
aerobic glycolysis
fat oxidation
fast glycolysis correct answers phosphagen
Approximately how many net ATP are produced via the oxidative energy system from the
metabolism of one molecule?
27
34
38
41 correct answers 38
Which of the following energy substrates cannot be depleted during extreme exercise intensities
or durations?
creatine phosphate
glycogen
water
ATP correct answers 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 correct answers energy expended
Which of the following hormones enhance(s) muscle tissue growth?
