Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

DPT830 (Exam 1) > Cardiopulmonary Responses to Acute Exercise > Flashcards

Cardiopulmonary Responses to Acute Exercise Flashcards

1
Q

What is a normal RHR range?

A

Normal: 60 - 100 (Typically: 65 - 85)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is Bradycardia and what is it’s RHR range?

A

When resting heart rate is below normal. ( < 60 bpm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is Tachyardia and what is its RHR range?

A

When resting heart rate is above normal. ( > 100 bpm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Endurance training favors parasympathetic or sympathetic dominance & why?

A

Endurance training favors parasympathetic dominance through increased vagal tone (reduced heart rate).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How does peripheral input regulate heart rate?

A

Through mechanoreceptors (active muscles) & baroreceptors (arterial blood pressure).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the anticipatory sympathetic HR response to exercise mediated by?

A

Norepi / Epi - mediated.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the most accurate assessment for calculating a person’s heart rate max?

A

A graded exercise stress test (GXT)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a normal stroke volume for a 70kg male?

A

70 ml

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are determinants of stroke volume?

A

Venous return, preload (filling time), and afterload (increased vascular resistance, semilunar damage)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

At what point does stroke volume stope increasing with exercise intensity and plateau?

A

40 - 60 % VO2 max

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is cardiac output and what is its formula?

A

Volume of blood pumped per minute. Q = HR x SV.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is a typical cardiac output / min?

A

70 beat/min x 70 mL/beat = 4.9 L/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

When stroke volume plateau’s, how does the body continue to raise its cardiac output keep up with exercise intensity?

A

Heart Rate will continue to rise (beats per minute) to elevate cardiac output to continue to meet exercise demand.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is Max Q & what is it’s limit?

A

Max cardiac output: 20-40 L/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is a normal blood pressure (systolic & diastolic)

A

120 / 70-80

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is a blood pressure range for atherosclerosis?

A

SBP: 300 (ish) & DBP: 120 (ish)

17
Q

What is a blood pressure range for hypertension (HTN)?

A

SBP: >140 / DBP: >90

18
Q

Does resistance training increase or decrease blood pressure (acutely)?

A

Significantly increases both SBP & DBP.

19
Q

What is a blood pressure range that is too high to continue exercising?

A

SBP > 250 / DBP > 115

20
Q

How much does vigorous exercise increase coronary blood flow?

A

4-6 x increase. (elevated myocardial metabolism & increased aortic BP)

21
Q

What is the O2 utilization in the heart in relation to blood flow?

A

70-80% used by myocardium from coronary vessels.

22
Q

What is rate-pressure product (RPP)?

A

Is a measure of the stress put on the cardiac muscle & a good measure of the energy consumption of the heart.

23
Q

What is typical resting RPP & what is its the formula?

A

Typical resting RPP = 6000 (HR x SBP) [50x120=6000]

24
Q

Does RPP increase or decrease with cardio-respiratory fitness & why?

A

Decreases due to lower RHR.

25
Q

At rest blood distribution to the body is fairly even. At max output, what are some of the areas blood is distributed away from?

A

Renal, Skin, Liver, and other various structures receive less BF as skeletal muscle demands more to meet exercise demand.

26
Q

How does ventilation increase to meet the demands of exercise?

A

Increase in tidal volume, and breathing (respiration) rate.

27
Q

What is Dyspnea?

A

Shortness of breath. Sensed by patient as the inability to breathe.

28
Q

What is the actual cause of Dyspnea?

A

Inability to adjust breathing adequately to the increases in blood (arterial) CO2 & H+

29
Q

What is the underlying pathology to dyspnea?

A

Asthma, COPD, etc…

30
Q

What is the normal breathing rate at rest?

A

Roughly 15 breaths / min

31
Q

What is hypocapnia?

A

Excessive CO2 unloading (via over-breathing “light headedness”)

32
Q

What is the mean peak BP in males at 100% maximum while using the valsalva maneuver?

A

311 / 284 mmHg

DPT830 (Exam 1) (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions