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NSCA - CSCS Chapter 1-22 review exam questions and answers
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NSCA - CSCS Chapter 1-22 review exam questions and answers
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NSCA - CSCS Chapter1-22 review exam
questions and answers
During a muscle contraction what structures do the cross bridges attach
to? - answer actin
What substance helps regulate muscle actions? - answer calcium
What substance excites the muscle fibers of a motor unit? - answer
acetylcholine
What muscle fiber type is most beneficial for a marathon runner? - answer
type I
When a muscle is rapidly stretched prior to an explosive movement like
throwing for example, which structure detects and responds to that
stretch by reflexively increasing muscle activity? - answer muscle spindle
The hearts electrical impulse is first initiated by the _____ . - answer SA
node
During the QRS complex of a typical ECG repolarization occurs in the ____. -
answer atrium
During the QRS complex of typical ECG depolarization occurs in the ___. -
answer ventricle
Fast twitch muscle fibers - answer type II
,During a muscle contraction when the sarcoplasmic reticulum is
stimulated to release calcium ions, the calcium binds to the ____. - answer
troponin
____ is the ultimate source of energy for a muscular contraction - answer
ATP
Which of these substances can be metabolized anaerobically? - answer
carbohydrates
The primary energy system used during a training session depends
primarily on the _____. - answer intensity
The production of lactic acid results from the activation of which energy
system? - answer fast glycolysis
Which energy system has the highest rate of energy production? - answer
fast glycolysis
How many ATP are produced by the oxidative energy system from the
degradation of 1 glucose molecule? - answer 38
Which energy system is predominantly active at the initiation of all
exercise? - answer phosphagen
Which enzymes catalyzes the rate-limiting step of glycolysis? - answer
phosphofructokinase (PFK)
After a bout of resistance training, ______ provide the body with
information about the amount of physiological stress, metabolic demands
of exercise, and type of physiological stress. - answer acute hormonal
secretions
, Which hormones enhance muscle tissue growth - answer growth hormone
and cortisol
1 main physiological role of growth hormone is that it _____ glucose
utilization - answer decreases
1 main physiological role of growth hormone is that it _____ amino acid
transport across cell membranes - answer increases
1 main physiological role of growth hormone is that it _____ protein
synthesis - answer increases
1 main physiological role of growth hormone is that it _____ glycogen
synthesis - answer decreases
1 main physiological role of growth hormone is that it _____ utilization of
fatty acids - answer increases
Which hormone has the greatest influence on neural changes? - answer
testosterone
Which hormone level is higher in women than men when at rest? - answer
HGH
What format of resistance training workout promotes the highest growth
hormone increases following the exercise session? - answer 30 second
rest- high volume - 3 sets
The knee is what type of a joint? - answer Synovial
work = - answer force x distance
power = - answer work/time
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