Kaiser Physical Activity Survey Research Articles

Validity and Reproducibility of the Kaiser Physical Activity Survey in Pregnant Women

0782 Physical activity patterns among pregnant women differ from patterns in non-pregnant women. Therefore, it is critical that epidemiologic studies of physical activity during pregnancy use instruments designed to capture multiple domains of physical activity (household/childcare, occupational, and sports/exercise). One such instrument is the Kaiser Physical Activity Survey (KPAS). However, the validity of the KPAS has not been assessed among pregnant women. PURPOSE: To assess the validity and reproducibility of the KPAS in pregnant women. METHODS: 53 women (mean age = 30.5 ± 7.1 years; 28% in 1st trimester, 32% in 2nd trimester, 40% in 3rd trimester) completed the KPAS and then wore the MTI actigraph for 7 consecutive days. At the end of the 7-day period, the KPAS was repeated. The MTI actigraph was used to generate two estimates of activity: 1) average counts per minute and 2) average minutes per day spent in activity (> 165 counts/min). RESULTS: The intraclass correlation coefficients used to measure reproducibility were 0.84 for total activity, 0.82 for sports and exercise, 0.74 for active living, 0.86 for household/care giving, and 0.93 for occupational activity. In terms of validity, the spearman correlations between the KPAS measure of total activity and the actigraph measures were 0.61 and 0.49 (for ‘average counts per minute’ and ‘average minutes per day spent in activity’, respectively). Correlations by activity type using ‘average counts per minute’ were 0.51 for sports/exercise, 0.43 for active living, 0.23 for household/care giving, and 0.27 for occupational activity. CONCLUSION: Our data indicate that the KPAS is a reliable instrument and provides a reasonably accurate measure of pregnancy physical activity. Supported by American Diabetes Association Career Award.

Validity and Reproducibility of the Kaiser Physical Activity Survey in Pregnant Women

Validity and Reproducibility of the Kaiser Physical Activity Survey in Pregnant Women

PHYSICAL ACTIVITY PATTERNS AND MATERNAL WELL-BEING IN POSTPARTUM WOMEN

Little data exists examining physical activity patterns in postpartum women and the relationship to maternal well-being. Furthermore, the contribution of household, child and family care activities to daily physical activity levels is rarely quantified (Ainsworth, 2000). PURPOSE: To examine changes in physical activity patterns pre versus postpartum and the relationship between physical activity patterns and material well being in postpartum women. METHODS: Fifty-six postpartum (up to 1 yr) women (age: 29.3 ± 4.2 y; 91% Caucasian) completed a modified Kaiser Physical Activity Survey (KPAS) (Ainsworth, 2000) and the Postpartum Self-Evaluation Questionnaire (PPQ) (Lederman, 1981). Subjects recalled their activity for the year prior to their pregnancy and since the birth of their baby for the KPAS. RESULTS: KPAS provides four summary activity indexes: housework/caregiving (HC), active living habits (AL), sport (S) and occupation (O). The PPQ has 7 subscales related to maternal well-being. A significant increase in the HC index was found pre versus postpartum in all subjects (2.81 ± 0.64 vs. 2.97 ± 0.44; p = 0.005). A significant difference in the S index was found between women with a child ≥ 6 versus < 6 months of age (1.89 ± 0.82 vs. 2.5 ± 1.0, p = 0.033). S index was significantly associated with 2 PPQ subscales (quality of relationship with the husband, r = −0.31, p = 0.027; mother's perception of father's participation in child care, r = −0.29, p = 0.036). CONCLUSION: These results indicate the postpartum period results in a greater level of HC activities. The ability of women to engage in S activities is related to a higher quality relationship with their husband, greater participation by the father in childcare and having an older infant.

Maximal oxygen intake as an objective measure of cardio-respiratory performance.

Maximal oxygen intake as an objective measure of cardio-respiratory performance.