ISSN study guide Que & Answ | 2024 Update
the increase in skeletal muscle fiber number seen with various models of overload may be due to ** Answ** satellite cell actviation and muscle fiber splitting
which of the following skeletal muscle fiber types would exhibit the greatest force prod...
the structure of ATP contains ** Answ** nitrogenous purine base, pentose sugar,
and 3 phosphates
the process of skeletal muscle differentiaion is controlled by four highly related helix-
loop helix proteins referred to as the myogenic regulatory factors or MRFS: these
include ** Answ** myo-D, myogenin, and myf5
the 3 primary energy systems used by the human body includes ** Answ** ATP-
PCr, lactic acid (fast glycolysis), aerobic energy system
the 3 skeletal muscle fiber types found in humans include ** Answ** type I, type II a,
type II b/x
the primary energy system used during the 60 m dash ** Answ** ATP-Pcr
the primary energy system used during a 10,000 m track race ** Answ** aerobic
energy system
short duration, high intensity exercise (longer than 20 s) relies on which system **
Answ** fast glycolysis
as exercise intenisty increases (running at 50% HRmax to 90% HRmax), the percent of
glycogen oxidized ** Answ** increases
the increase in skeletal muscle fiber number seen with various models of overload may
be due to ** Answ** satellite cell actviation and muscle fiber splitting
which of the following skeletal muscle fiber types would exhibit the greatest force
production? ** Answ** type IIX
what are 3 characteristics that are different between type I, type IIa, and type IIX fiber
types ** Answ** mitochondrial volume/density: highest in type I, then IIa, then IIx
what are 3 sports that use the ATP-PCr system in track and field ** Answ** shot put,
high jump, long jump, javelin
name 3 sports where the fast glycolysis system is used ** Answ** wrestling, MMA,
00 m dash
3 sports in track and field where the anaerobic system is used ** Answ** any event
over 1500 m
, what do satellite cells in skeletal muscle do ** Answ** repair damaged skeletal
muscle fibers, prmote hypoertrophy, and hyperplasia sometimes
fast twitch or type II fibers ** Answ** greatest muscle mass
lowest mitochondrial density
highest concentration of creatine phosphate
fastest contraction speed
largest neuron size
lowest capillary density
slow twitch or type I fibers ** Answ** highest concentration of triglyceride stores
highest oxidative enzyme activity
lowest recruitment threshold
highest myoglobin density
the skeltal muscle fiber type found in breast muscle of domestic chickens ** Answ**
fast twitch or type II
the primary energy system used during a sumo wrestling match ** Answ** anaerobic
when activated, satellite cells undergo mitosis and may eventually create ** Answ**
new or nascent muscle fibers
the rate-limiting step in glycolysis is at the enzyme.. ** Answ** PFK or
phosphofructokinase
the primary energy system used during a 400 m dash is ** Answ** fast glycolysis or
lactic acid
myostatin ** Answ** a myokine that acts as a negative regulator of skeletal muscle
mass. There is a linear relationship between oxygen uptake and heart rate
the primary limiting factor in maximum oxygen uptake is (for majority of aerobic
exercise) ** Answ** cardiac output
what is the relationship between volume/duration of exercise and intensity ** Answ**
inverse relationship
the primary fuel used during low intensity aerobic activity is ** Answ** fat
what dietary components are most important in athletes training for skeletal muscle
hypertrophy? ** Answ** protein
what occurs in individuals consuming a high protein diet for a year ** Answ** nothing
bad
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