Aerobic metabolism Flashcards
1
Q
What is the Fick equation?
A
VO2 = Q x a-vO2 difference
Q= Cardiac Output ( L.min-1)
Volume of blood pumped out the left ventricle of the heart in 1 min
= Stroke volume ( L.beat-1) x heart rate (beats.min-1)
A: arterial O2 content ( entering muscle)
V: Venous O2 content ( leaving muscle)
2
Q
What are the SI units for V02 max??
A
Ml.min-1
Ml.min-1 KG-1
L.min-1
L.min-1. Kg-1
3
Q
What is likeley to limit VO2 max during an incremental test performed on a cycle ergometer in sedentary subjects?
A
Cardiac output
4
Q
What is lactate threshold??
A
Work rate above which blood lactate consistently exceeds resting baseline value (- 1 mm. L-1)
The point of where lactic acid
builds faster than it is excreted
