NSCA CSCS Exam Review
Questions With Complete Answers
Which of the following substances regulates muscle actions?
potassium
calcium
troponin
tropomyosin calcium
Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit?
acetylcholine
ATP
creatine phosphate
serotonin 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?
, NSCA CSCS Exam Review
Questions With Complete Answers
golgi tendon organ
muscle spindle
extrafusal muscle
pacinian corpuscle 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 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
, NSCA CSCS Exam Review
Questions With Complete Answers
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 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 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
, NSCA CSCS Exam Review
Questions With Complete Answers
body weight squared
lean body weight
body weight to the two-thirds power 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 a. 1 and 2 only (perpendicular distance from the weight to the body
joint AND joint angle)
Questions With Complete Answers
Which of the following substances regulates muscle actions?
potassium
calcium
troponin
tropomyosin calcium
Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit?
acetylcholine
ATP
creatine phosphate
serotonin 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?
, NSCA CSCS Exam Review
Questions With Complete Answers
golgi tendon organ
muscle spindle
extrafusal muscle
pacinian corpuscle 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 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
, NSCA CSCS Exam Review
Questions With Complete Answers
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 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 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
, NSCA CSCS Exam Review
Questions With Complete Answers
body weight squared
lean body weight
body weight to the two-thirds power 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 a. 1 and 2 only (perpendicular distance from the weight to the body
joint AND joint angle)
