SV = EDV - ESV
Therefore, stroke volume is greatest when venous return is increased.
By 1st year paramedic science student.
Increased heart rate and increased stroke volume
The crank angle would change the stroke. The stroke would change the volume.
Yes - an increase in contractility would lead to an increase in stroke volume. An increased stroke volume would cause an increased cardiac output.
It's decreased ... unless the rate falls, which is the normal cardiac response.
Since the stroke volume increased then the cardiac out put would increase, pumping out more blood with the same amount of heart beats.
To calculate stroke volume, you can use the formula: Stroke Volume = Cardiac Output / Heart Rate. Given a cardiac output of 5250 ml per minute and a heart rate of 75 beats per minute, the stroke volume would be 5250 ml/min ÷ 75 beats/min = 70 ml per beat. Therefore, the stroke volume is 70 ml.
afterload
Your muscles will not get as fatigued but your fitness would improve slightly i suppose.
Stroke volume can decrease if you are unhealthy. Health conditions such as heart failure, heart disease, or dehydration can negatively affect the heart's ability to pump blood effectively, leading to a decrease in stroke volume.
This can be expressed simply as "less in, less out". The less blood in the system means that there will be less to be pumped out. This can be a dangerous situation where someone has lost a lot of blood. Some way to stop the loss is immediately necessary and a transfusion may be also required when it can be done.
marshmallow
I may be guessing here but I am thinking with an increase in stroke volume you body is getting more volume per beat ... therefore it compensates by lowering the heart rate. if your pump is more efficient then you body doesn't need your heart to pump as often. That's the only rationale i can think would cause it!