BPK 310 Final questions and answers graded A+
latest update
1. define oxygen - Oxygen consumption (VO2) is the amount of oxygen delivered to cells
and
consumption and metabolized to water by the electron transport chain
the equation
VO2 = oxygen consumed per unit time = inhaled oxygen (i.e. O2 in the
air) - exhaled oxygen (O2 in breath)
2. Define -it is a determinant of endurance performance and cardiorespiratory
VO2max and and meta- bolic health
describe its -gold standard measure of aerobic fitness, function of the
importance cardiorespiratory (oxygen transport) and metabolic (oxygen
and features of extraction and consumption) system
its es- timation -VO2 max is correlated with endurance performance when assessed
in a broad heterogeneous sample (e.g., sedentary to trained people)
-VO2 max is a poor predictor of performance in a homogeneous
sample (e.g., elite endurance athletes)
3. define the -predict the sustainable power output via undurance
physi- ological
model of athelete power = VO2max x %VO2max x eflciency
endurance
%VO2 max - that can be sustainably held by the athlete
per- formance
eflciency - the conversion of the mechanical power output relative to the
metabolic power going in
4. How is VO2 calcu- - calculated from variables measured from gas exchange
measurements
lated? Name the
variables + VO2 = oxygen consumed per unit time =
equa- tion inhaled oxygen (i.e., O2 in the air) - exhaled oxygen (O2 in breath)
VO_2= V_I*F_1F_O
,BPK 310 Final questions and answers graded A+
latest update
- V_E*F_EO_2
units = L O2 min-1
V_I= inspired minute
ventilation (L min-1)
,BPK 310 Final questions and answers graded A+
latest update
F_IO_2 = fraction of inspired gas that
is O2 V_E = exhaled minute ventilation
(L min-1) F_EO_2 = fraction of expired
gas that is O2
5. How is VO2
max -estimated based on gas exchange measurements during graded
estimated? exercise tests, usually the average VO2 during the final 30 sec of test
what are the e.g., cardiac stress tests = graded exercise test with electrocardiography
prop- erties of assess- ment (ECG; assess heart electrical function)
grad-
ed exercise
tests?
How do you know criteria:
VO2 max are not suitable?
was
achieved?
8. Define VO2peak. Should trained cyclists be
tested
6. What are the
properties of
graded
exercise tests
7. Which graded
ex- ercise tests
are used to
deter- mine
VO2max?
Which tests
, BPK 310 Final questions and answers graded A+
latest update
-perceived exertion measured VO2max
(exhaustion)
- RER > 1.1 VO2peak - maximal oxygen consumption during a specific activity or task
-[lactate-] > 8 mM -trained cylcists will be able to elicit greater percent of VO2 max via cycling
-peak HR = 220 - age b/c they
-properties of graded
exercise tests:
exercise modality:
-must use >50% of total
body muscle mass
-continuous, rhythmical
movement
-does not rely on skill or
motivation
-standardized conditions
(temperature, humidity,
pollution, altitude)
-upper-body exercise
modalities are not suitable
for determinations of
VO2max b/c insuflcient
muscle mass is activated
and the
limiting factor is local fatigue
-~70% of treadmill-
measured VO2max
-cycling: commonly
used modality but
typically elicits only
~85% of treadmill
latest update
1. define oxygen - Oxygen consumption (VO2) is the amount of oxygen delivered to cells
and
consumption and metabolized to water by the electron transport chain
the equation
VO2 = oxygen consumed per unit time = inhaled oxygen (i.e. O2 in the
air) - exhaled oxygen (O2 in breath)
2. Define -it is a determinant of endurance performance and cardiorespiratory
VO2max and and meta- bolic health
describe its -gold standard measure of aerobic fitness, function of the
importance cardiorespiratory (oxygen transport) and metabolic (oxygen
and features of extraction and consumption) system
its es- timation -VO2 max is correlated with endurance performance when assessed
in a broad heterogeneous sample (e.g., sedentary to trained people)
-VO2 max is a poor predictor of performance in a homogeneous
sample (e.g., elite endurance athletes)
3. define the -predict the sustainable power output via undurance
physi- ological
model of athelete power = VO2max x %VO2max x eflciency
endurance
%VO2 max - that can be sustainably held by the athlete
per- formance
eflciency - the conversion of the mechanical power output relative to the
metabolic power going in
4. How is VO2 calcu- - calculated from variables measured from gas exchange
measurements
lated? Name the
variables + VO2 = oxygen consumed per unit time =
equa- tion inhaled oxygen (i.e., O2 in the air) - exhaled oxygen (O2 in breath)
VO_2= V_I*F_1F_O
,BPK 310 Final questions and answers graded A+
latest update
- V_E*F_EO_2
units = L O2 min-1
V_I= inspired minute
ventilation (L min-1)
,BPK 310 Final questions and answers graded A+
latest update
F_IO_2 = fraction of inspired gas that
is O2 V_E = exhaled minute ventilation
(L min-1) F_EO_2 = fraction of expired
gas that is O2
5. How is VO2
max -estimated based on gas exchange measurements during graded
estimated? exercise tests, usually the average VO2 during the final 30 sec of test
what are the e.g., cardiac stress tests = graded exercise test with electrocardiography
prop- erties of assess- ment (ECG; assess heart electrical function)
grad-
ed exercise
tests?
How do you know criteria:
VO2 max are not suitable?
was
achieved?
8. Define VO2peak. Should trained cyclists be
tested
6. What are the
properties of
graded
exercise tests
7. Which graded
ex- ercise tests
are used to
deter- mine
VO2max?
Which tests
, BPK 310 Final questions and answers graded A+
latest update
-perceived exertion measured VO2max
(exhaustion)
- RER > 1.1 VO2peak - maximal oxygen consumption during a specific activity or task
-[lactate-] > 8 mM -trained cylcists will be able to elicit greater percent of VO2 max via cycling
-peak HR = 220 - age b/c they
-properties of graded
exercise tests:
exercise modality:
-must use >50% of total
body muscle mass
-continuous, rhythmical
movement
-does not rely on skill or
motivation
-standardized conditions
(temperature, humidity,
pollution, altitude)
-upper-body exercise
modalities are not suitable
for determinations of
VO2max b/c insuflcient
muscle mass is activated
and the
limiting factor is local fatigue
-~70% of treadmill-
measured VO2max
-cycling: commonly
used modality but
typically elicits only
~85% of treadmill
