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Comparative validation of the IPAQ and the 7-Day PAR among women diagnosed with breast cancer.

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  • 1San Diego State University Research Foundation, 9245 Sky Park Court, San Diego, CA 92123, USA. mfjohnson@projects.sdsu.edu

Abstract

BACKGROUND:

The criterion-related validity and measurement bias of the long form of the International Physical Activity Questionnaire (IPAQ) was compared to the 7-Day Physical Activity Recall (PAR).

METHODS:

Participants were women who have been diagnosed with breast cancer and enrolled in the ongoing Women's Healthy Eating and Living Study. Women (N = 159, average age 57 years) wore an accelerometer for one week and then completed the IPAQ or the PAR.

RESULTS:

The validity correlation of the PAR was significantly higher (p < 0.001) than the IPAQ (0.73 vs. 0.33, respectively). The PAR and IPAQ overestimated total physical activity by 13% vs. 247%, respectively. The PAR had better sensitivity (p = 0.14) and specificity (p < .01) than the IPAQ (100% vs. 71% and 84% vs. 59%, respectively) in predicting attainment of the ACSM physical activity guideline.

CONCLUSION:

The PAR was superior to the IPAQ in terms of validity, measurement bias, and screening statistics.

PMID:
16579852
[PubMed]
PMCID:
PMC1468425
Free PMC Article
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