heart measurements Flashcards
what are the 3 heart measurments ?
heart rate (HR)
stroke volume (SV)
cardiac output (Q)
what is heart rate?
How does it indicate fitness levels?
the number of beats per minute
its measured in BPM
the lower the heart rate the higher your fitness levels are because the heart is bigger and stronger so dosen’t need to pump as much to get blood around the body
what is stroke volume?
how is it indicative of fitness levels?
stroke volume is the amount of blood pumped out by the heart (by the left ventricle) in one contraction
measured in ml
a higher stroke volume indicates higher fitness levels because the more blood is being pumped out which means the heart is bigger and stronger and the blood gets around the body quicker
what is cardiac output?
how does it indicate fitness levels?
cardiac output is the volume of blood ejected from the left ventricle in one minute
its calcualted by HEART RATE X STROKE VOLUME
a higher cardiac output is usually indicative of fitness levels
what is bradycardia?
when you have a resting heart rate of below 60bpm
this means there has been lots of cardiac hypertrophy happening
what is it called when the heart muscle grows in size?
myocardial hypertrophy
what is blood pressure?
the force of blood applied to the vessel walls
it is needed to pump blood around the body
what is the systolic and dyastolic blood pressure?
systolic- is when the heart pumps the blood / when it is working
diastolic- is when the heart relaxes
perfect blood pressure is 120/8
