Exercise benefits and the Heart

advertisement
WRITE DOWN THE POINTS…
Learn, define and find out your
resting HEART RATE
Understand what STROKE VOLUME
and CARDIAC OUTPUT are
Learn how these are affected by
exercise
HEART RATE
This is the number of times your heart beats per
minute
Lets now find out our resting heart rates
The average heart rate is about 70 beats per
minute
• What is your heart rate?
• What is the average of the whole class?
STROKE VOLUME
This is the volume of blood pumped out of the
heart by each ventricle during one contraction
This increases once exercise commences
because heart chambers fill and empty
more due to stronger contractions of the
heart
CARDIAC OUTPUT
This is defined as the amount of blood ejected
from the heart in one minute
After doing the reading in section 2, calculate
your estimated cardiac output using the
equation…
Heart rate x stroke volume = cardiac output
Download