3.8 Article

Development and validation of a pregnancy physical activity questionnaire

Journal

MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
Volume 36, Issue 10, Pages 1750-1760

Publisher

LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1249/01.MSS.0000142303.49306.0D

Keywords

activity assessment; epidemiologic methods; exercise; reproducibility of results; women

Categories

Funding

  1. NICHD NIH HHS [HD39341] Funding Source: Medline

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Purpose: The effect of physical activity during pregnancy on maternal and fetal health remains controversial and studies have yet to identify the optimal dose of physical activity associated with favorable, pregnancy outcomes. The aim of this study was to develop and validate a pregnancy physical activity questionnaire (PPAQ). Methods: To ascertain the type, duration, and frequency of physical activities performed by pregnant women, three 24-h physical activity recalls were administered to 235 ethnically diverse prenatal care patients at a large tertiary care facility in western Massachusetts. The relative contribution of each activity to between-person variance in energy expenditure was used to establish the list of activities for the PPAQ. The PPAQ is self-administered and asks respondents to report the time spent participating in 32 activities including household/caregiving, occupational, sports/exercise, transportation, and inactivity. To validate the PPAQ, 54 pregnant women completed the PPAQ and then wore a Manufacturing Technology, Inc. actigraph for the following 7 d. At the end of the 7-d period, the PPAQ was repeated. Results: Intraclass correlation coefficients used to measure reproducibility of the PPAQ were 0.78 for total activity, 0.82 for moderate activity, 0.81 for vigorous activity, and ranged from 0.83 for sports/exercise to 0.93 for occupational activity. Spearman correlations between the PPAQ and three published cut points used to classify actigraph data ranged from 0.08 to 0.43 for total activity, 0.25 to 0.34 for vigorous activity, 0.20 to 0.49 for moderate activity, and -0.08 to 0.22 for light-intensity activity. Correlations were higher for sports/exercise and occupational activities as compared to household/caregiving activities. Conclusions: The PPAQ is a reliable instrument and a reasonably accurate measure of a broad range of physical activities during pregnancy.

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