Physical Activity Assessment

Validation of a Clinical Assessment Tool

The purpose of this study was to test the accuracy and reliability of the Physical Activity Assessment Tool (PAAT). This self-administered tool is designed to help physicians determine the level of physical activity of their patients and aid in counseling their patients. Sixty-eight active and underactive volunteers between the ages of 18 and 64 were recruited from a university community in New Orleans. Participants completed the PAAT and the International Physical Activity Questionnaire Long Form (IPAQ) twice and wore a Manufacturing Technology Inc. accelerometer for 14 days.

Key Findings:

  • For measuring levels of moderate to vigorous physical activity, the PAAT was significantly correlated with the IPAQ and the accelerometer.
  • The PAAT classified fewer participants as active (60%) than did the accelerometer (71%) or the IPAQ (80%).
  • Repeated administrations of the PAAT were highly correlated, indicating good test-retest reliability. These measures also were consistent with the IPAQ and accelerometer.
  • The PAAT and IPAQ agreed on classification as “active” or “under-active” for 67 percent of participants. The PAAT and accelerometer agreed for classification of 70 percent of participants.