2001 Fiscal Year Final Research Report Summary
Longitudinal study of mother's sleep wake behaviors from late pregnancy to postpartum, related their infant's sleep
| Project/Area Number |
11672335
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
基礎・地域看護学
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| Research Institution | KYUSHU UNIVERSITY |
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Principal Investigator |
SHINKODA Harumi Kyushu Univ., Sch. Of Health Sci., Dept. of Midwifery, Assoc. Prof., 医療技術短期大学部, 助教授 (70187558)
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| Co-Investigator(Kenkyū-buntansha) |
NOGUCHI Yukari Kyushu Univ., Sch. Of Health Sci., Dept. of Midwifery, Assistant, 医療技術短期大学部, 助手 (70304847)
MISHIMA Midori Shimane Nursing College, Assoc. Prof., 助産学専攻, 助教授 (20280125)
MATSUMOTO Kazuya Graduate School, Faculty of Engineering, University of East Asia, Prof., 大学院・工学部, 教授 (80086602)
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| Project Period (FY) |
1999 – 2001
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| Keywords | Sleep log / wrist Actigraph / longitudinal study / late pregnancy to postpartum / Sleep-wake cycle |
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| Research Abstract |
The purpose of this study was to investigate the changes of sleep-wake behaviors of primiparas and multiparas from late pregnancy to postpartum weeks respectively, and to make clear the correlation between wake behaviors of mothers and those of their infants. The subjects 26 women that consist of 14 primiparas and 12 multiparas. They kept a sleep logs everyday from 7th week before delivery to 15th week after delivery and 8 of them also kept another record about their babies. From 1st to 11th week after delivery, mother's nocturnal total sleep time decreased and wake after sleep onset (WASO) increased significantly, compared to those in late pregnancy. The efficiency of sleep significantly decreased from 1st to 8th week after delivery. Especially the date from primiparas shows significantly increase in WASO and decrease in efficiency of sleep from 2nd to 6th week after delivery. There was a high correlation between mothers' WASO and their infants' one.
In conclusion, the irregularity of primiparas' nocturnal sleep is greater especially, compared to that of multiparas. The irregularity continues until about 11th week after delivery. However, after 12th week, with the development of their infants' sleep-wake rhythm and feeding rhythm, the sleep -wake behavior of mothers also seems to no interrupted.
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