CSCS Exam Practice Questions and
Answers
Which of the following describes all motor units?
A) Contains the same type of muscle fibers
B) Contains the same size of motor neurons
✅✅-B
C) Contains about the same number of muscle fibers
D) Can adjust their force production based on the size of the action potential -
Which of the following layers is the MOST superficial?
A) Perimysium
B) Endomysium
✅✅
C) Epimysium
D) Fasciculus - -C
Which of the following is the smallest functional unit of a muscle?
A) Myofibril
B) Sarcomere
✅✅
C) Myofilament
D) Actomyosin complex - -B
Which of the following is the form of chemical energy stored in the body that is the most
IMMEDIATELY available for a muscle action?
A) Muscle glycogen
B) Blood glucose
✅✅
C) Creatine Phosphate
D) Adenosine Triphosphate - -D
Which of the following types of muscle fibers generate the GREATEST amount of force?
A) Fast-twitch glycolytic
B) Slow-twitch oxidative
✅✅
C) Fast-twitch glycolytic oxidative
D) Transitional or undifferentiated - -A
A muscle's stability to sustain maximal force production without undue fatigue is
primarily dependent on which of the following factors?
A) Ability to replenish adenosine triphosphate
B) Amount of actomyosin binding
C) Ratio of Type IIa to Type IIc muscle fibers in a motor unit
,D) Motor unit firing frequency - ✅✅-A
As compared to a muscle whose fibers are not pennated, all of the following are
affected by a muscle with pennated fibers EXCEPT:
A) Contraction speed
B) Power production
✅✅
C) Creatine content
D) Force capacity - -C
Which of the following is an adaption to aerobic endurance training?
A) Submax heart rate increases
B) Resting VO2 increases
✅✅
C) Submax ventilation rate increases
D) Resting vital capacity increases - -D
Performing a resistance training workout causes which of the following changes in blood
pressure or peripheral resistance that does NOT occur during an aerobic exercise
workout?
A) Systolic blood pressure increases
B) Mean blood pressure increases
✅✅
C) Diastolic blood pressure increases
D) Peripheral resistance decreases - -C
Which of the following is the primary transport mechanism of oxygen in the blood?
A) Myosin
B) Plasma
✅✅
C) Hemoglobin
D) Bicarbonate - -C
Which of the following physiological adaptations occur in response to a resistance
training program?
1-Increased motor unit recruitment
2-Enhanced mitochondrial density
3-Increased number of Type II muscles
4-Enhanced motor unit synchronization
A) 1 and 4 only
B) 2 and 3 only
✅✅-A
C) 1, 2 and 4 only
D) 1, 3 and 4 only -
,Which of the following structures, when activated, reduces a muscle's ability to create
force?
A) Muscle spindles
B) Intrafusal fibers
✅✅
C) Golgi Tendon Organs
D) Gamma afferent fibers - -C
Which of the following types of training elicits the greatest increase in the size and the
number of mitochrondria in a skeletal muscle fiber?
A) Olympic lifting
B) Fartlek running
✅✅
C) Plyometric training
D) Plyometric resistance training - -B
Which of the following athletics positions theoretically requires the highest percentage of
Type I muscle fibers for optimal performance?
A) Olympic weightlifter
B) American football wide receiver
✅✅
C) Basketball point guard
D) American football lineman - -C
Which of the following best describes the shift in muscle fiber type due to exercise
training?
A) Type I to Type IIa
B) Type IIb to Type IIa
✅✅
C) Type IIa to Type I
D) Type IIa to Type IIb - -B
Which of the following is a location where changes to connective tissue adaptions are
likely to occur in response to training?
1-at the ligament-bone junction
2-inside the bone matrix
3-within the belly of the tendon
4-between the groups of muscle fibers
A) 1 and 3 only
✅✅-C
B) 2 and 4 only
C) 1, 3 and 4 only -
, Which of the physiological adaptations occur in response to an aerobic endurance
training program?
1-enhanced ventricular hypertrophy
2-increased size of Type II muscle fibers
3-enhance carbohydrate oxidation
4-increased ATPase concentration
A) 1 and 2 only
B) 1 and 3 only
✅✅-B
C) 2 and 4 only
D) 3 and 4 only -
Resistance training-induced adaptions within which of the following structures of the
body are responsible for the initial (e.g., the first 3 weeks) increase in muscle strength?
A) Axial skeleton
B) Motor unit
✅✅
C) Connective tissue
D) Muscle cell nucleus - -B
Engaging in a cross-training program consisting of equal volumes of resistance training
and aerobic endurance training will
A) Enhance the aerobic adaptations.
B) Interfere with the aerobic adaptations.
✅✅
C) Enhance the anaerobic adaptations.
D) Interfere with the anaerobic adaptations. - -D
Which of the following is a marker for the aerobic overtraining syndrome?
A) Decrease post-exercise testosterone production
B) Increased body fat percentage
✅✅
C) Increased pre-exercise glycogen stores
D) Decreased submaximal heart rate - -A
Which of the following primarily dictates the degree that an energy system contributes to
the needed production of ATP?
A) Mode
B) Frequency
✅✅
C) Duration
D) Intensity - -C
Which of the following catalyzes the the rate-limiting step of glycolysis?
Answers
Which of the following describes all motor units?
A) Contains the same type of muscle fibers
B) Contains the same size of motor neurons
✅✅-B
C) Contains about the same number of muscle fibers
D) Can adjust their force production based on the size of the action potential -
Which of the following layers is the MOST superficial?
A) Perimysium
B) Endomysium
✅✅
C) Epimysium
D) Fasciculus - -C
Which of the following is the smallest functional unit of a muscle?
A) Myofibril
B) Sarcomere
✅✅
C) Myofilament
D) Actomyosin complex - -B
Which of the following is the form of chemical energy stored in the body that is the most
IMMEDIATELY available for a muscle action?
A) Muscle glycogen
B) Blood glucose
✅✅
C) Creatine Phosphate
D) Adenosine Triphosphate - -D
Which of the following types of muscle fibers generate the GREATEST amount of force?
A) Fast-twitch glycolytic
B) Slow-twitch oxidative
✅✅
C) Fast-twitch glycolytic oxidative
D) Transitional or undifferentiated - -A
A muscle's stability to sustain maximal force production without undue fatigue is
primarily dependent on which of the following factors?
A) Ability to replenish adenosine triphosphate
B) Amount of actomyosin binding
C) Ratio of Type IIa to Type IIc muscle fibers in a motor unit
,D) Motor unit firing frequency - ✅✅-A
As compared to a muscle whose fibers are not pennated, all of the following are
affected by a muscle with pennated fibers EXCEPT:
A) Contraction speed
B) Power production
✅✅
C) Creatine content
D) Force capacity - -C
Which of the following is an adaption to aerobic endurance training?
A) Submax heart rate increases
B) Resting VO2 increases
✅✅
C) Submax ventilation rate increases
D) Resting vital capacity increases - -D
Performing a resistance training workout causes which of the following changes in blood
pressure or peripheral resistance that does NOT occur during an aerobic exercise
workout?
A) Systolic blood pressure increases
B) Mean blood pressure increases
✅✅
C) Diastolic blood pressure increases
D) Peripheral resistance decreases - -C
Which of the following is the primary transport mechanism of oxygen in the blood?
A) Myosin
B) Plasma
✅✅
C) Hemoglobin
D) Bicarbonate - -C
Which of the following physiological adaptations occur in response to a resistance
training program?
1-Increased motor unit recruitment
2-Enhanced mitochondrial density
3-Increased number of Type II muscles
4-Enhanced motor unit synchronization
A) 1 and 4 only
B) 2 and 3 only
✅✅-A
C) 1, 2 and 4 only
D) 1, 3 and 4 only -
,Which of the following structures, when activated, reduces a muscle's ability to create
force?
A) Muscle spindles
B) Intrafusal fibers
✅✅
C) Golgi Tendon Organs
D) Gamma afferent fibers - -C
Which of the following types of training elicits the greatest increase in the size and the
number of mitochrondria in a skeletal muscle fiber?
A) Olympic lifting
B) Fartlek running
✅✅
C) Plyometric training
D) Plyometric resistance training - -B
Which of the following athletics positions theoretically requires the highest percentage of
Type I muscle fibers for optimal performance?
A) Olympic weightlifter
B) American football wide receiver
✅✅
C) Basketball point guard
D) American football lineman - -C
Which of the following best describes the shift in muscle fiber type due to exercise
training?
A) Type I to Type IIa
B) Type IIb to Type IIa
✅✅
C) Type IIa to Type I
D) Type IIa to Type IIb - -B
Which of the following is a location where changes to connective tissue adaptions are
likely to occur in response to training?
1-at the ligament-bone junction
2-inside the bone matrix
3-within the belly of the tendon
4-between the groups of muscle fibers
A) 1 and 3 only
✅✅-C
B) 2 and 4 only
C) 1, 3 and 4 only -
, Which of the physiological adaptations occur in response to an aerobic endurance
training program?
1-enhanced ventricular hypertrophy
2-increased size of Type II muscle fibers
3-enhance carbohydrate oxidation
4-increased ATPase concentration
A) 1 and 2 only
B) 1 and 3 only
✅✅-B
C) 2 and 4 only
D) 3 and 4 only -
Resistance training-induced adaptions within which of the following structures of the
body are responsible for the initial (e.g., the first 3 weeks) increase in muscle strength?
A) Axial skeleton
B) Motor unit
✅✅
C) Connective tissue
D) Muscle cell nucleus - -B
Engaging in a cross-training program consisting of equal volumes of resistance training
and aerobic endurance training will
A) Enhance the aerobic adaptations.
B) Interfere with the aerobic adaptations.
✅✅
C) Enhance the anaerobic adaptations.
D) Interfere with the anaerobic adaptations. - -D
Which of the following is a marker for the aerobic overtraining syndrome?
A) Decrease post-exercise testosterone production
B) Increased body fat percentage
✅✅
C) Increased pre-exercise glycogen stores
D) Decreased submaximal heart rate - -A
Which of the following primarily dictates the degree that an energy system contributes to
the needed production of ATP?
A) Mode
B) Frequency
✅✅
C) Duration
D) Intensity - -C
Which of the following catalyzes the the rate-limiting step of glycolysis?
