Vo2 MAX Flashcards
1
Q
Define Vo2 max?
A
The maximum volume of oxygen that can be taken up by the muscles per minute.
2
Q
List physiological factors affecting Vo2 max?
A
- increased maximum cardiac output
- increased stroke volume
- greater heart rate range
- increased levels of haemoglobin and red blood cell count.
- increased stores of glycogen and triglycerides
- increased myoglobin content
- increased number and size of mitochondria
- increased surface area of alveoli
- increased lactate tolerance
3
Q
Explain how training affects Vo2 max
A
- can be improved by up to 20% following aerobic training
- such as fartlek training, continuous and interval training.
4
Q
Explain how body composition affects Vo2 max?
A
- a higher percentage of body fat decreases Vo2 max.
5
Q
What are factors that affect Vo2 max
A
- genetics
- body composition
- physiology
- age
- gender
- training
- lifestyle
6
Q
what is calorimetry?
A
- the calculation of heat in physical changes and chemical reactions.
7
Q
what is indirect calorimetry?
A
Measures the production CO2 and/or consumption of O2
8
Q
What is lactate sampling used for?
A
- monitor training and predict performance
- involves taking a tiny sample of blood which tells you blood lactate levels.
- also tells you exercise intensity
- ## gives an idea of your fitness
9
Q
What is direct gas analysis?
A
- measures the concentration of oxygen that is inspired and the concentration of carbon dioxide that is exhaled.
10
Q
What is the respiratory exchange ratio?
A
Ratio of carbon dioxide produced compared with oxygen consumption.
- RER= VCO2/VO2
