The Physical Activity Readiness Questionnaire is used to determine an person’s safety when starting a new exercise program. While a majority people can start a exercising without worry, some people may require a preliminary health check to ensure that they are taking on the right level of activity for their medical condition.
Personal trainers often use the PAR-Q to identify any reasons why their client should delay starting an exercise program.
The expanded PAR-Q (in the link above) tells a lot about the person you will be meeting with, in advance. Learning this information prior to your first appointment allows you to maximize your time together and accomplish more during the first session.