Definitions for "Personal Best"
The swimmers best time to date for that event.
The highest number that a particular person with asthma can blow on their peak flow meter when their asthma is under good control. Once the personal best peak flow number is determined, all future peak flow numbers are compared to the personal best to give the person an idea of how much asthma they are having. The personal best number increases as the asthma improves and as the child grows.
The highest peak flow measurement you can reach consistently when your asthma is under control
a moving target