MOVESCI 340 QUESTIONS AND ANSWERS LATEST UPDATE
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what is a common test to evaluate power output capacity of the immediate and
short-term energy system?
anaerobic power tests (wingate, etc.)
stair-sprinting power tests
jumping-power tests
any all out exercises for 6-8 seconds
assuming that all ATP is used at maximal power using performance tests, what
regenerates it?
ATP-PCr hydrolysis
how long can adequate PCr and ATP exist to support maximal performance?
~6 seconds
what is power equation?
P = (FD)/T
what are the two measures that evaluate energy-generating capacity of the
immediate energy system?
-size of intramuscular ATP-PCr pool
-depletion of rates of ATP and PCr in all-out, short duration exercises
what provides the most direct estimate and correlate highly with physical
performance assessments of the immediate energy system?
ATP & PCr depletion rates
what provides the most common indicator of activation of the short-term energy
system?
blood lactate level
performances that activate the short-term energy system require maximal
exercise for up to how many minutes?
~3 min
ex: all out runs, stationary cycling, shuttle runs, repetitive weight lifting
does lactate measured during or following exercise necessarily reflect absolute
levels of anaerobic energy transfer via glycolysis?
no bc w/ increasing intensity, greater lactate production reflects increasing ATP
resynthesis from anaerobic pathways
what provides the most rapid phosphorylation of ATP of the three macronutrients
and serves as the only stored macronutrient that anaerobically resynthesizes
ATP?
glycogen
what happens to rate of glycogen depletion as intensity increases?
increases
list 3 factors that contribute to differences among individuals in capacity to
generate short-term anaerobic energy?
, -effects of previous training
-capacity to buffer acid metabolites
-motivation
what happens to VO2 when energy expenditure increases?
increases
what type of relationship does VO2 have with submaximal exercise intensity?
linear
what is the point where VO2 no longer increases with increasing intensity?
VO2 max
what does VO2 max mean in terms of ATP?
the point at which a person is at their maximal ability to make ATP aerobically
what is a graded exercise VO2 max instensity?
low to high intensity
what is primary index of attaining VO2 max?
leveling off of VO2 with increasing exercise intensity
what are secondary indices of VO2 max?
RER > 1.1
hr within 10% of age predicted HRmax(220 - age)
lactate accumulation (7-8 mM)
what does it mean to "blow off" CO2?
at super high intensity exercises, the high ventilation rate may cause us to blow off CO2
that was not produced by the metabolic pathways
what is the best/simplest way of looking at performance for aerobic endurance?
(3 things)
aerobic engine (VO2 max)
lactate threshold
efficiency and economy of mvmt
what is economy?
determined by measuring the oxygen consumption of a steady state task (ex: VO2 while
running at 10 mph on treadmill)
-refers to the rship btwn o2 consumption and running velocity
-more common for ex physiologists
what is efficiency?
ratio of external work performed divided by the energy expenditure for that task
what is the difference between ventilation and respiration?
ventilation: mechanically moving gas thru opening like a nose or mouth to trachea
respiration: exchange of gas molecules thru a membrane
what happens to ribs & lungs during inspiration?
100% CORRECT A+ GRADED. Buy Quality Materials!
what is a common test to evaluate power output capacity of the immediate and
short-term energy system?
anaerobic power tests (wingate, etc.)
stair-sprinting power tests
jumping-power tests
any all out exercises for 6-8 seconds
assuming that all ATP is used at maximal power using performance tests, what
regenerates it?
ATP-PCr hydrolysis
how long can adequate PCr and ATP exist to support maximal performance?
~6 seconds
what is power equation?
P = (FD)/T
what are the two measures that evaluate energy-generating capacity of the
immediate energy system?
-size of intramuscular ATP-PCr pool
-depletion of rates of ATP and PCr in all-out, short duration exercises
what provides the most direct estimate and correlate highly with physical
performance assessments of the immediate energy system?
ATP & PCr depletion rates
what provides the most common indicator of activation of the short-term energy
system?
blood lactate level
performances that activate the short-term energy system require maximal
exercise for up to how many minutes?
~3 min
ex: all out runs, stationary cycling, shuttle runs, repetitive weight lifting
does lactate measured during or following exercise necessarily reflect absolute
levels of anaerobic energy transfer via glycolysis?
no bc w/ increasing intensity, greater lactate production reflects increasing ATP
resynthesis from anaerobic pathways
what provides the most rapid phosphorylation of ATP of the three macronutrients
and serves as the only stored macronutrient that anaerobically resynthesizes
ATP?
glycogen
what happens to rate of glycogen depletion as intensity increases?
increases
list 3 factors that contribute to differences among individuals in capacity to
generate short-term anaerobic energy?
, -effects of previous training
-capacity to buffer acid metabolites
-motivation
what happens to VO2 when energy expenditure increases?
increases
what type of relationship does VO2 have with submaximal exercise intensity?
linear
what is the point where VO2 no longer increases with increasing intensity?
VO2 max
what does VO2 max mean in terms of ATP?
the point at which a person is at their maximal ability to make ATP aerobically
what is a graded exercise VO2 max instensity?
low to high intensity
what is primary index of attaining VO2 max?
leveling off of VO2 with increasing exercise intensity
what are secondary indices of VO2 max?
RER > 1.1
hr within 10% of age predicted HRmax(220 - age)
lactate accumulation (7-8 mM)
what does it mean to "blow off" CO2?
at super high intensity exercises, the high ventilation rate may cause us to blow off CO2
that was not produced by the metabolic pathways
what is the best/simplest way of looking at performance for aerobic endurance?
(3 things)
aerobic engine (VO2 max)
lactate threshold
efficiency and economy of mvmt
what is economy?
determined by measuring the oxygen consumption of a steady state task (ex: VO2 while
running at 10 mph on treadmill)
-refers to the rship btwn o2 consumption and running velocity
-more common for ex physiologists
what is efficiency?
ratio of external work performed divided by the energy expenditure for that task
what is the difference between ventilation and respiration?
ventilation: mechanically moving gas thru opening like a nose or mouth to trachea
respiration: exchange of gas molecules thru a membrane
what happens to ribs & lungs during inspiration?
