The DigiWalker pedometer offers an informed choice of a comparatively inexpensive method of obtaining some measurement of physical activity .
The HAES represents an informed choice of question naire to assess physical activity .
There is insufficient data to recommend the use of one diary over another .
Reliability and validity of the habitual activity estimation scale (HAES) in patients with cystic fibrosis.
PURPOSE To underst and potential benefits of exercise in the cystic fibrosis ( CF ) population , there needs to be accurate methods to quantify it . The Habitual Activity Estimation Scale ( HAES ) question naire has been shown to be a feasible tool to measure physical activity however the reliability and validity have yet to be determined in the CF population . METHODS Fourteen ( seven male , seven female ) patients aged 16.2 + /- 4.2 years with CF participated in this study . Participants were clinical ly stable at the time of the study and participating in their habitual physical activity . To assess reliability , patients completed the HAES and a vali date d 3-day activity diary , and wore an ActiGraph Accelerometer for two consecutive weeks .  Validity was assessed by comparing the activity results of each of the three instruments over a single week time period . RESULTS ICC estimates of reliability for the HAES , diary , and  accelerometer  were 0.72 ( P < 0.0001 ) , 0.76 ( P < 0.0001 ) , 0.63 ( P < 0.0001 ) , respectively . Validity analysis indicated that there were significant relationships between the participants ' activity results as estimated by the HAES , diary and  accelerometer .  Further , significant relationships were detected between activity measures when broken into morning , afternoon , or evening periods , and between measures from weekday or weekend days . There were also significant relationships among the three instruments when recording different activity levels ( somewhat inactive , somewhat active , and very active ) . CONCLUSION The findings of this study suggest that the HAES question naire is a reliable and valid instrument that can be used to assess activities of varying intensity in patients with CF
The DigiWalker pedometer offers an informed choice of a comparatively inexpensive method of obtaining some measurement of physical activity .
The HAES represents an informed choice of question naire to assess physical activity .
There is insufficient data to recommend the use of one diary over another .