NSCA CSCS 4th edition book study
questions Chapters 1 – 24 questions n
answers
Calcium - ANS ✔✔Which of the following substances regulates muscle actions?
Potassium
Calcium
troponin
tropomyosin
acetylcholine - ANS ✔✔Which of the following substances acts at the neuromuscular junction
to excite the muscle fibers of a motor unit?
acetylcholine
ATP
creatine phosphate
serotonin
Muscle spindle - ANS ✔✔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
,SA node - ANS ✔✔From which of the following is the heart's electrical impulse normally
initiated?
AV node
SA node
the brain
the sympathetic nervous system
2 & 4 only - ANS ✔✔Which of the following occurs during the QRS complex of a typical ECG?
1 depolarization of the atrium
2 repolarlization of the atrium
3 repolarization of the ventricle
4 depolarization of the ventricle
1 & 3 only
2 & 4 only
1, 2, & 3 only
2, 3, & 4 only
force x velocity
(velocity is distance/time) - ANS ✔✔Which of the following is the definition of power?
mass x acceleration
force x distance
,force x velocity
torque x time
body weight to the two-thirds power - ANS ✔✔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
1 & 2 only - ANS ✔✔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
1 & 2 only
1 & 4 only
1, 2, & 3 only
2, 3, & 4 only
sagittal - ANS ✔✔A verticle jump involves knee, hip, and shoulder movement primarily in which
anatomical plane?
, sagittal
perpendicular
frontal
transverse
1 & 3 only - ANS ✔✔An athlete is performing a concentric isokinetic elbow flexion and
extension exercise. Which of the following type(s) of levers occur(s) at the elbow during this
exercise?
1 first class.
2 second class.
3 third class.
1 only
2 only
1 & 3 only
2 & 3 only
glucose - ANS ✔✔Which of the following substances can be metabolized anaerobically?
glycerol
glucose
amino acids
free fatty acids
ATP -> ADP + P + H+ - ANS ✔✔Which of the following reactions is the primary cause of
metabolic acidosis (the decrease in intramuscular pH during high-intensity, fatiguing exercise)
questions Chapters 1 – 24 questions n
answers
Calcium - ANS ✔✔Which of the following substances regulates muscle actions?
Potassium
Calcium
troponin
tropomyosin
acetylcholine - ANS ✔✔Which of the following substances acts at the neuromuscular junction
to excite the muscle fibers of a motor unit?
acetylcholine
ATP
creatine phosphate
serotonin
Muscle spindle - ANS ✔✔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
,SA node - ANS ✔✔From which of the following is the heart's electrical impulse normally
initiated?
AV node
SA node
the brain
the sympathetic nervous system
2 & 4 only - ANS ✔✔Which of the following occurs during the QRS complex of a typical ECG?
1 depolarization of the atrium
2 repolarlization of the atrium
3 repolarization of the ventricle
4 depolarization of the ventricle
1 & 3 only
2 & 4 only
1, 2, & 3 only
2, 3, & 4 only
force x velocity
(velocity is distance/time) - ANS ✔✔Which of the following is the definition of power?
mass x acceleration
force x distance
,force x velocity
torque x time
body weight to the two-thirds power - ANS ✔✔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
1 & 2 only - ANS ✔✔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
1 & 2 only
1 & 4 only
1, 2, & 3 only
2, 3, & 4 only
sagittal - ANS ✔✔A verticle jump involves knee, hip, and shoulder movement primarily in which
anatomical plane?
, sagittal
perpendicular
frontal
transverse
1 & 3 only - ANS ✔✔An athlete is performing a concentric isokinetic elbow flexion and
extension exercise. Which of the following type(s) of levers occur(s) at the elbow during this
exercise?
1 first class.
2 second class.
3 third class.
1 only
2 only
1 & 3 only
2 & 3 only
glucose - ANS ✔✔Which of the following substances can be metabolized anaerobically?
glycerol
glucose
amino acids
free fatty acids
ATP -> ADP + P + H+ - ANS ✔✔Which of the following reactions is the primary cause of
metabolic acidosis (the decrease in intramuscular pH during high-intensity, fatiguing exercise)
