BMC pregnancy and childbirth · 2026
Physical activity during the last trimester of pregnancy and its correlates among pregnant women: a cross-sectional analysis from the French national cohort ELFE.
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Aubert Adrien M, Charles Marie-Aline, Heude Barbara, Bernard Jonathan Y, Dargent-Molina Patricia
Аннотация
BACKGROUND: Most pregnant women do not reach the minimum recommended level of 150 min/week of moderate physical activity (MPA). Most previous studies of correlates focused on leisure time physical activity (LTPA) ignoring other domains of MPA (occupational, household/child care, transportation). This article aims to i) estimate the proportion of French pregnant women meeting physical activity (PA) guidelines during the last trimester of pregnancy, hypothesised to vary depending on the domains of MPA considered; and ii) explore differences in sociodemographic, and maternal health and behavioural correlates, whenever only LTPA or overall MPA is considered.
METHODS: We used data from 14,484 women who gave birth in 2011 as part of the French national ELFE mother-child cohort. PA during the last trimester of their pregnancy was reported using the Pregnancy Physical Activity Questionnaire. Women spending ≥450 MET-min/week in MPA (i.e., ≥150 min/week in activities at ≥3 METs) were considered reaching recommended PA levels. Sociodemographic and maternal health and behavioural correlates associated, respectively, with meeting PA guidelines for LTPA and having a high overall MPA (defined as an overall MPA ≥70th percentile) were assessed by multivariable logistic regressions.
RESULTS: Most of the pregnant women reported engaging in LTPA during the last three months of pregnancy (92.3%), but only 28.0% met guidelines for LTPA. Adding MPA from other domains (transportation, household/caregiving, occupational) drastically increased this estimate (up to 85.6%). Primiparity, higher education and income levels, and a higher number of prenatal classes attended were positively associated with meeting guidelines for LTPA, but negatively associated with having high overall MPA levels. Younger age was positively associated with high MPA whereas not working during the last trimester of pregnancy was negatively associated with high MPA. Pre-pregnancy overweight/obesity were negatively associated with meeting guidelines for LTPA. Being single was positively associated with both outcomes.
CONCLUSIONS: Most sociodemographic and maternal correlates examined had differing associations with engaging in sufficient LTPA or having a high overall MPA. In particular, associations with indicators of social vulnerability were in opposite directions. These results call for continuing efforts to promote PA during pregnancy while inviting to specify which activities (type/context) provide optimum health benefits.
TRIAL REGISTRATION: Not applicable.
METHODS: We used data from 14,484 women who gave birth in 2011 as part of the French national ELFE mother-child cohort. PA during the last trimester of their pregnancy was reported using the Pregnancy Physical Activity Questionnaire. Women spending ≥450 MET-min/week in MPA (i.e., ≥150 min/week in activities at ≥3 METs) were considered reaching recommended PA levels. Sociodemographic and maternal health and behavioural correlates associated, respectively, with meeting PA guidelines for LTPA and having a high overall MPA (defined as an overall MPA ≥70th percentile) were assessed by multivariable logistic regressions.
RESULTS: Most of the pregnant women reported engaging in LTPA during the last three months of pregnancy (92.3%), but only 28.0% met guidelines for LTPA. Adding MPA from other domains (transportation, household/caregiving, occupational) drastically increased this estimate (up to 85.6%). Primiparity, higher education and income levels, and a higher number of prenatal classes attended were positively associated with meeting guidelines for LTPA, but negatively associated with having high overall MPA levels. Younger age was positively associated with high MPA whereas not working during the last trimester of pregnancy was negatively associated with high MPA. Pre-pregnancy overweight/obesity were negatively associated with meeting guidelines for LTPA. Being single was positively associated with both outcomes.
CONCLUSIONS: Most sociodemographic and maternal correlates examined had differing associations with engaging in sufficient LTPA or having a high overall MPA. In particular, associations with indicators of social vulnerability were in opposite directions. These results call for continuing efforts to promote PA during pregnancy while inviting to specify which activities (type/context) provide optimum health benefits.
TRIAL REGISTRATION: Not applicable.