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Fitness management 386 > Final Exam > Flashcards

Final Exam Flashcards

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1
Q

What does maximal consumption of o2 depend on?

A

Cells’ ability to extract and use o2, and ability of cardiovascular and respiratory systems

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2
Q

Historically, VO2max = what??

A

test of choice for predicting endurance success, but is not only test to be used to eval physical work capacity of endurance athletes

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3
Q

VO2max provides what ?

A

Important information about CV fitness and prognosis, see population specific norms for interpretation, and VO2max not strongly related to ventricular function

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4
Q

What indications do vo2max provide?

A

Indications to confirm max effort has been elcited: failure of HR to increase w/ further increases in exs intensity +/- 10 beats of HRmax

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5
Q

What indications do vo2max provide?

A

Indications to confirm max effort has been elcited: failure of HR to increase w/ further increases in exs intensity +/- 10 beats of HRmax

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6
Q

direct calorimetry

A

human calorimetry

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7
Q

Indirect calorimetry is what?

A

open circuit spirometry by the subject inhaling ambient air

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8
Q

Amount of O2 in ambient air?

A

20.93% o2

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9
Q

% CO2 ambient air

A

0.03% CO2

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10
Q

% N ambient air

A

79.03% N in the air

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11
Q

direct calorimetry what % of energy is liberated during fat and glucose metabolism to generate what?

A

40% generate ATP

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12
Q

direct calorimetry what % of energy is liberated during fat and glucose metabolism to generate what?

A

40% generate ATP, remaining 60% enrgy converted to heat

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13
Q

STPD correction factor is what?

A

Reference conditions of temp and pressure with which you will be concerned

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14
Q

standard temp for STPD

A

0 degrees

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15
Q

stand Presure for STPD

A

760 mm Hg

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16
Q

Dry in stpd

A

elimination of water vapor

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17
Q

273 in stpd eqn is

A

kelvin in centigrade

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18
Q

Oxygen consumption is defined as

A

amount/volume of oxygen consumed/min (vo2)

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19
Q

Ve

A

minute ventilation

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20
Q

F

A

fraction/ percentage

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21
Q

FEo2

A

fraction of expired oxygen, measured w/ o2 analyer

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22
Q

FEco2

A

fraction of expired CO2; meausred w/ co2 analyzer

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23
Q

FIo2 and FIco2 is what value?

A

known value

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24
Q

resting metabolic rate =

A

energy balance

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25
resting metabolic rate =
energy balance
26
Energy balance =
energy input-energy output 24-hr energy expenditure
27
RMR ~
60-75% of Total Daily Energy Expenditure (TEE)
28
Thermic Effect of Food (TEF)
increment in TEE as result of food ingestion (digestionm transformation, storage) ~ 10%
29
Thermic Effect of Activity (TEA)
15-30% of 240hr energy expenditure (PA, muscular activity, shivering, and fidgeting)
30
Ve is measusred in
L/min
31
VO2 is measured in
ml/min
32
R=
respiratory quotient
33
HR measured how ?
beats/min
34
FEO2
Fraction of expired oxygen
35
FECO2
Fraction of expired CO2
36
FECO2
Fraction of expired CO2
37
When is VO2max achieved?
VO2 at which performance of increasing levels of supramaximal work failed to further increase VO2
38
When is VO2max achieved?
VO2 at which performance of increasing levels of supramaximal work failed to further increase VO2
39
What is the upper limit in VO2?
Upper limit in VO2 can be determined by incremental testing, where there a plateau of VO2 despite further increases in work rate +/- 150 ml/min (vo2max plateua)
40
Lactate greater than 8 mM means
VO2max attained
41
RPE > 17 means
vo2max attained
42
RQ/RER >/= to 1.15 is
vo2max attained
43
HR plateau is VO2max attained when
within +/- 10bpm of HRmax
44
Physiological rationale for vo2max
pumping limit of heart, potential for O2 extraction
45
VO2max test reliability r =
0.95
46
VO2max test standard error
= 2.5% to 6 or 8%
47
VO2max test standard error
= 2.5% to 6 or 8% or 2-4 ml/kg/min
48
What does LT conceptually represent ?
Exercise level, power output, VO2, or Energy Expenditure, and where tissue hypoxia triggers an imbalance betweeen : lactate formation and its clearance
49
What does LT conceptually represent ?
Exercise level, power output, VO2, or Energy Expenditure, and where tissue hypoxia triggers an imbalance betweeen : lactate formation and its clearance
50
What VO2max measurement proves 3 f(x)?
1) Senstive indicator of aerobic training status 2) predicts endurane performance, often greater accuracy than VO2max 3) Est. an effective training intensity geared activate muscles' aerobic metabolic dynamics
51
3 diff indicators of LT
Fixed blood lactate [ ] VT Blood lactate- exercise VO2 repsonse
52
3 diff indicators of LT
Fixed blood lactate [ ] VT Blood lactate- exercise VO2 repsonse
53
Phase I has what?
a greater amt of O2 is being extracted by the tissues resulting in a gradually decreasing Feo2 in expired air
54
What linear increases in phase I?
VO2, Ve, and HR
55
Greater amount of what are produced in phase I?
Greater amts of CO2 produced, therefore, FeCO2 and VCO2 increased
56
Greater amount of what are produced in phase I?
Greater amts of CO2 produced, therefore, FeCO2 and VCO2 increased
57
Phase II is what %VO2max
40-60%
58
Phase II what rises linearlly?
VO2 and HR
59
in phase II what rises twice resting values
LA
60
What increases for respiratory compensation in phase II?
VE and VCO2
61
in phase II what rises due to lower extraction of oxygen per volume of air ventilated?
FEO2
62
Phase III is what % vo2max
65-90%
63
in phase III what rises linearly until maximal workload and then plateau
VO2 and HR
64
in phase III VE further what?
increase to compensate for marked rise in LA and Co2
65
What drops off in phase III?
FECO2
66
What continues to rise in phase III?
FEO2
67
What continues to rise in phase III?
FEO2
68
When is VT?
VT is between phase II and III
69
Inbetween phase II and III, what has a non-linear increase?
Ve
70
What declines in btwn phases II/III?
FEco2 declines
71
What declines in btwn phases II/III?
FEco2 declines
72
2 other varriables affected by VT/ inbtwn Phase II/III?
% VO2max | %HR
73
2 other varriables affected by VT/ inbtwn Phase II/III?
% VO2max %HR How? email axtell
74
2 other varriables affected by VT/ inbtwn Phase II/III?
% VO2max %HR How? email axtell
75
Duration of VO2max test for the average motherfo
6-12 minutes
76
Duration of VO2max test for exceptional mofos
occasionally as long as 20 min
77
What equipment is used to stimulate exercise for the VO2max test?
treadmill or bike ergometer flume/tethered swimming EKG (optional)
78
What equipment is used to stimulate exercise for the VO2max test?
treadmill or bike ergometer flume/tethered swimming EKG (optional)
79
How to select increment size
Dependent upon the patient history. Especially the amount and intensity of daily activities). Better to over estimate work increment resulting in a shorter test which may allow for retesting.
80
VIO2 =
(VI) * (FIO2)
81
VEO2 =
(VE)*(FEO2)
82
VO2=
VI*FIO2- [VE*FEO2]
83
VI =
VE* FEN2/FIN2

Fitness management 386 (6 decks)

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