Week 8 - Response to aerobic exercise

Question 1

What is VO2 max?

Answer 1

When increase to workload can only occur through anaerobic glycolysis

Question 2

How does the respiratory system respond to exercise?

Answer 2

Potential for increase 6L/min to 200L/min
Increased tidal volume
Increased respiratory rate

Question 3

How does the CV system respond to exercise?

Answer 3

Cardiac output rises

CO = SV X HR

Question 4

How does blood flow change during exercise?

Answer 4

Pulmonary perfusion increases up to 5 x
Increased blood supply to skeletal muscles and skin
Halved supply to digestion and kidneys

Question 5

What is blood pressure and how does it change during exercise?

Answer 5

CO X PR

Systolic increases, diastolic stays the same or slight decrease

Question 6

What are the principles of CV exercise design?

Answer 6

Frequency
Intensity
Time
Type

Question 7

What would we assess to ensure patient safe for exercise?

Answer 7

Stability
O2 sats
RR and pattern
HR and rhythm
BP
Drugs
Muscle condition
joint range
Co-pathologies

Question 8

What are the benefits of exercising patients’ with Cardiac disease?

Answer 8

Increased Hb conc
Increased mitochondria
Muscle fibre type change from IIb to IIa
Cardiac hypertrophy
Angiogenesis
Increased myoglobin