After a session, the reading on the treadmill or bicycle is as follows: PI = 40/ PI = 36 / PI = 34 What does PI stand for and is lower numbers ... some performance score based on intensity, heart rate ...

So what does the Pi symbol mean? In case it’s been awhile since you sat down in a math class, Pi is the ratio of a circle’s circumference to its diameter, and it’s represented by the symbol ...

Superior vena cava (SVC) flow is used as an index for ... The PI value fluctuates widely because of changes in the venous pulse caused by movement. Therefore, the mean PI value obtained over ...