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Ther Ex II > CV exercise > Flashcards

CV exercise Flashcards

1
Q

cardiac output=

A

heart rate x stroke volume

HR x SV

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2
Q

normal resting HR

A

50-80 bpm

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3
Q

Max HR=

A

220-age

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4
Q

increase in HR during exercise is achieved by decreased time in…

A

diastole

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5
Q

SV=

A

End diastolic volume - End systolic volume

EDV-ESV

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6
Q

stroke volume is regulated by (3)

A
  1. EDV
  2. Average aortic BP
  3. Ventricular contraction strength
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7
Q

“Greater preload results in stretch of ventricles which increase force of contraction”

A

Frank-Starling mechanism

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8
Q

3 mechanisms for increasing venous return

A
  1. venoconstriction
  2. respiratory pump
  3. skeletal mm pump
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9
Q

increased mean arterial pressure will ____ stroke volume

A

decrease

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10
Q

BP normal

A

120/80 mmHg

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11
Q

BP increases w/ (4)

A
  1. CO
  2. Resistance
  3. Blood volume
  4. Blood viscosity
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12
Q

during exercise, which BP measurement increases the most?

A

systolic

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13
Q

Resistance is dependent upon (3)

A
  1. Radius
  2. Viscosity
  3. Length
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14
Q

the difference in oxygen levels in artery vs vein

A

A-V O2

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15
Q

“Blood is diverted away from systemic organs and to skeletal mm during exercise”

A

Wolf’s Law

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16
Q

Consists of trachea, main stem bronchi, L and R bronchi, terminal bronchioles

A

Conducting zone

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17
Q

Consists of respiratory bronchioles, alveolar ducts, alveolar sacs

A

Respiratory zone

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18
Q

volume of gas inspired or expired during an unforced respiratory cycle

A

tidal volume

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19
Q

max amount of gas that can be expired after a max inspiration

A

vital capacity

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20
Q

amount of gas left after maximal expiration

A

residual volume

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21
Q

amount of gas in lungs after a maximum inspiration

A

total lung capacity

22
Q

CO2 is transported in blood by (3)

A
  1. Bicarbonate (70%)
  2. Hemoglobin (20%)
  3. Dissolved (10%)
23
Q

Chemoreceptors send messages to _____ to provide initial drive for ventilation

A

medulla oblongata

24
Q

With exercise, respiratory rate and tidal volume…

A

increase

25
Q

Chronic changes to CV function with training (3)

A
  1. increased max CO
  2. increased capillary density
  3. decreased resting HR
26
Q

Abnormal responses to exercise (3)

A
  1. no HR rise
  2. SBP rises over 20 mmHg or decreases
  3. DBP increases over 15mmHg
27
Q

What does FITT stand for?

A

Frequency
Intensity
Time
Type

28
Q

Frequency is dependent on (3)

A
  1. pt goals
  2. intensity/duration
  3. previous fitness level
29
Q

target HR range for overload for healthy person

A

60-90% of HR max

30
Q

target VO2 range for overload for healthy person

A

50-85% VO2 max

31
Q

target HR range for overload for unhealthy person

A

40-60% HR max

32
Q

target VO2 range for overload for unhealthy person

A

40-50% VO2 max

33
Q

Karvonen formula for target HR range

A

(HR max - HR rest) x intensity + HR rest

34
Q

MET level =

A

VO2 / 3.5 mL/kg/min

35
Q

VO2 max =

A

HR max X SV max X (a-VO2)max

36
Q

How do you increase intensity? (3)

A
  1. resistance
  2. speed
  3. remove stabilization
37
Q

continuous training that is >30min 40-59% VO2 max

A

low intensity, long duration training

38
Q

continuous training that is25-50 min, 80-90% VO2 max

A

high intensity training

39
Q

Which training method is best for weight loss?

A

Low intensity, long duration continuous

40
Q

which training method is best for increasing VO2max?

A

High intensity continuous

41
Q

Cardiovascular training methods (3)

A
  1. continuous
  2. interval
  3. circuit
42
Q

High intensity, short duration training (>60 sec, 85-100 HR max) Work/rest intervals

A

Interval training

43
Q

series of activities repeated several times

A

circuit training

44
Q

arm exercises result in higher (2)

A
  1. HR

2. BP

45
Q

work =

A

force x distance

46
Q

power =

A

work/time

47
Q

measurement of heat production as an indication of metabolic rate

A

direct calorimetry

48
Q

measurement of oxygen consumption as an estimate of resting metabolic rate

A

indirect calorimetry

49
Q

Difference between direct and indirect calorimetry

A

direct uses ATP

50
Q

Indications to stop test (3)

A
  1. Angina
  2. SOB
  3. SBP drops

Ther Ex II (9 decks)

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