K M Sharkey1, G M Boni2, J A Quattrucci2, S Blatch3, S N Carr2. 1. Brown University, Providence, RI, United States; Rhode Island Hospital, Providence, RI, United States; Sleep for Science Research Laboratory, Providence, RI, United States. Electronic address: Katherine_Sharkey@brown.edu. 2. Rhode Island Hospital, Providence, RI, United States; Sleep for Science Research Laboratory, Providence, RI, United States. 3. Brown University, Providence, RI, United States; Sleep for Science Research Laboratory, Providence, RI, United States.
Abstract
OBJECTIVE: This study assessed sleep and circadian rhythms across the perinatal period in new mothers with and without postpartum weight retention (PPWR). METHODS: Weight was measured at 2 and 16 weeks postpartum in 21 women with previous major depression or bipolar disorder (mean age 29.5±4.7 years) who self-reported pre-pregnancy weight during third trimester. Wrist actigraphy was acquired at 33 weeks gestation and postpartum weeks 2, 6, and 16. Circadian phase was measured at 33 weeks gestation and 6 weeks postpartum. The Horne-Östberg Morningness-Eveningness Questionnaire and Pittsburgh Sleep Quality Inventory were completed during third trimester. Women were classified as PPWR+ if weight at 16 weeks postpartum exceeded pre-pregnancy weight by ≥5kg. RESULTS: Compared to pre-pregnancy, average weight gain (±SD) was 6.3±8.8 kg at 2 weeks postpartum and 5.2±8.5 kg at 16 weeks postpartum. ANOVA showed that PPWR+ women (n=8, 38%) had later sleep offset times and lower sleep efficiencies than PPWR- women at all time points and were more likely to report snoring during pregnancy. CONCLUSIONS: Data from this small sample showed that women with PPWR had more disturbed sleep and later wake times and were more likely to report symptoms of sleep-disordered breathing. Future work in larger samples should examine whether interventions to improve sleep during pregnancy decreases PPWR.
OBJECTIVE: This study assessed sleep and circadian rhythms across the perinatal period in new mothers with and without postpartum weight retention (PPWR). METHODS: Weight was measured at 2 and 16 weeks postpartum in 21 women with previous major depression or bipolar disorder (mean age 29.5±4.7 years) who self-reported pre-pregnancy weight during third trimester. Wrist actigraphy was acquired at 33 weeks gestation and postpartum weeks 2, 6, and 16. Circadian phase was measured at 33 weeks gestation and 6 weeks postpartum. The Horne-Östberg Morningness-Eveningness Questionnaire and Pittsburgh Sleep Quality Inventory were completed during third trimester. Women were classified as PPWR+ if weight at 16 weeks postpartum exceeded pre-pregnancy weight by ≥5kg. RESULTS: Compared to pre-pregnancy, average weight gain (±SD) was 6.3±8.8 kg at 2 weeks postpartum and 5.2±8.5 kg at 16 weeks postpartum. ANOVA showed that PPWR+ women (n=8, 38%) had later sleep offset times and lower sleep efficiencies than PPWR- women at all time points and were more likely to report snoring during pregnancy. CONCLUSIONS: Data from this small sample showed that women with PPWR had more disturbed sleep and later wake times and were more likely to report symptoms of sleep-disordered breathing. Future work in larger samples should examine whether interventions to improve sleep during pregnancy decreases PPWR.
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