L12 Flashcards
1
Q
True VO2 Max
A
Levelling off or plateau over VO2
2
Q
How can you tell it is VO2 max
A
- RER greater than 1.15
- Blood lactate over 8mM
- Max individual HR (220 - age)
3
Q
VO2 Peak
A
No plateau or peaking over
OR
If VO2 increases more than 150mL during last 2 workloads
4
Q
Measuring O2 Consumption
A
0.2093 x volume of air inspired in one minute
5
Q
VO2 Max expressed in
A
L.min^-1 or ml.kg^-1.min^-1
6
Q
Lactate Threshold 1
A
- about 1mM increased
- sustained increase in blood lactate
- anaerobic glycolysis starts to produce more than compared to rest
- start to puff during prolonged exercise (no pain)
7
Q
Lactate Threshold 2
A
- blood lactate increases dramatically
- exercising at intensity where anaerobic glycolysis workds hard to provide lots of energy
- CON = too many H+ ions at step 6
8
Q
OBLA
A
- 4mM of lactic acid (onset of blood lactate)
- slightly above LT2
9
Q
Below LT2 Training Benefits
A
- building of mitochondria/enzymes
- improved aerobic capacity and energy systems
10
Q
Buffering System Equation
A
H+ + HCO3 –> H2CO3 –> H2O + CO2
hydrogen ions + bicaronate –> carbonic acid –> water + carbon dioxide
11
Q
VO2 Max Values (ml.kg.min^-1)
A
18-22 year olds
Females = 38 - 42
Males 44 - 50
12
Q
Ventilatory Threshold
A
point where difference in linear increase
