cardiovascular drift Flashcards
1
Q
how is cardiovascular drift characterised?
A
a progressive decrease in stroke volume and arterial blood pressure with a progressive rise in heart rate
2
Q
when does cardiovascular drift occur?
A
after prolonged exercise (10 minutes +) despite intensity remaining the same
3
Q
why does cardiovascular drift occur?
A
when we sweat a portion of lost fluid comes from plasma volume
the reduce in plasma will reduce stroke volume and venous return
4
Q
what will happen due to reduced SV and venous return?
A
heart rate will increase to compensate
cardiac output will be higher to attempt to cool down the body
5
Q
how can cardiovascular drift be minimised?
A
maintain high fluid consumption before and during exercise
