Miguel is a 25-year-old jogger with a target heart rate of 125 bpm. His resting pulse is 70 bpm. His blood volume is approximately 6.8 litres. At rest, his cardiac output is 6.3 litres/minute and his EDV is 150 ml. What is his stroke volume at rest?
The equation that is going to be helpful for us is the following:
Isolate the unknown, plug in and solve.
#color(blue)(CO = HR * SV)#
#color(white)(--)# #(CO)/(HR) = SV#
#color(white)(--)# #(6.3 "Liters"/cancel(min))/(70 "beats"/cancelmin) = "SV" = 0.09 ("Liters")/("beat")#