OBJECTIVE: To assess the psychometric properties of the Pregnancy Physical Activity Questionnaire (PPAQ) for women who read and speak Japanese. DESIGN: This longitudinal study used a self-report questionnaire and quantitative biometric and instrumental measurements (actigraph) to assess the reliability and criterion validity. SETTING: A university hospital in Tokyo, Japan. PARTICIPANTS: Sixty-nine pregnant women living in Tokyo and its suburbs were recruited. METHODS: The test-retest reliability of the Japanese version of the Pregnancy Physical Activity Questionnaire (PPAQ-J) was evaluated through intraclass correlation coefficients (ICCs) between PPAQ-J results administered three times (at recruitment, 7 and 14 days later). Criterion validity was assessed by comparing results to actigraph measures using Spearman's correlation coefficients. Participants wore the actigraph over the 2-week research period. Data from 58 participants were analyzed for test-retest reliability. The data of 54 participants were used to analyze criterion validity. RESULTS: The ICCs for the first and second and for the first and third PPAQ-J questionnaires were ≥0.56 for total activity and activities broken down by intensity and type (in metabolic equivalents [METs] × hours/day). To evaluate criterion validity, Spearman's correlation coefficients were calculated between the first measurement of the PPAQ-J and three published cut-points used to classify actigraph data (minutes/day); correlations ranged from .02 to .35 for total activity, -.21 to -.25 for vigorous activity, -.09 to .38 for moderate activity, and .01 to .28 for light activity. CONCLUSION: The PPAQ-J is a psychometrically sound and comprehensive measure of physical activity in pregnant Japanese women.
OBJECTIVE: To assess the psychometric properties of the Pregnancy Physical Activity Questionnaire (PPAQ) for women who read and speak Japanese. DESIGN: This longitudinal study used a self-report questionnaire and quantitative biometric and instrumental measurements (actigraph) to assess the reliability and criterion validity. SETTING: A university hospital in Tokyo, Japan. PARTICIPANTS: Sixty-nine pregnant women living in Tokyo and its suburbs were recruited. METHODS: The test-retest reliability of the Japanese version of the Pregnancy Physical Activity Questionnaire (PPAQ-J) was evaluated through intraclass correlation coefficients (ICCs) between PPAQ-J results administered three times (at recruitment, 7 and 14 days later). Criterion validity was assessed by comparing results to actigraph measures using Spearman's correlation coefficients. Participants wore the actigraph over the 2-week research period. Data from 58 participants were analyzed for test-retest reliability. The data of 54 participants were used to analyze criterion validity. RESULTS: The ICCs for the first and second and for the first and third PPAQ-J questionnaires were ≥0.56 for total activity and activities broken down by intensity and type (in metabolic equivalents [METs] × hours/day). To evaluate criterion validity, Spearman's correlation coefficients were calculated between the first measurement of the PPAQ-J and three published cut-points used to classify actigraph data (minutes/day); correlations ranged from .02 to .35 for total activity, -.21 to -.25 for vigorous activity, -.09 to .38 for moderate activity, and .01 to .28 for light activity. CONCLUSION: The PPAQ-J is a psychometrically sound and comprehensive measure of physical activity in pregnant Japanese women.
Authors: Paula M Frew; Diane S Saint-Victor; Margaret Brewinski Isaacs; Sonnie Kim; Geeta K Swamy; Jeanne S Sheffield; Kathryn M Edwards; Tonya Villafana; Ouda Kamagate; Kevin Ault Journal: Clin Infect Dis Date: 2014-12-15 Impact factor: 9.079
Authors: Matteo C Sattler; Johannes Jaunig; Estelle D Watson; Mireille N M van Poppel; Lidwine B Mokkink; Caroline B Terwee; Pavel Dietz Journal: Sports Med Date: 2018-10 Impact factor: 11.136