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Please use this identifier to cite or link to this item: http://hdl.handle.net/10285/310

NII Resource type: Departmental Bulletin Paper
Title: 産褥6週までの母親の夜間睡眠における途中覚醒とこどもの動きに関する研究
Other Titles: Relationships Between Wakefulness of Mothers and Their Infants' Movements During Night Sleep of Postpartum 6 Weeks.
Authors: 堀内, 成子
西原, 京子
Keywords: アクチグラフ
infant's movement
ambulatory monitoring
Shimei: 聖路加看護大学紀要
Issue: 22
Start page: 42
End page: 51
Issue Date: 1-Mar-1996
ISSN: 02892863
Abstract:  本研究は、産褥6週までの母親の夜間睡眠を経時的に追跡し、特に途中覚醒がこどもの動きとどのような関係があるのかその実態を調べることを目的とした。 母親10例の終夜睡眠をこどもの足の動きと同時に測定した結果、以下の知見を得た。 母親10例の途中覚醒時間の平均は、産褥1週目が102.6分(SD=23.5)、産褥3週目が84.8分(SD=52.8)、産褥6週目79.4分(SD=40.5)であり、時期別に有意差は認められなかった。 母親の覚醒は、こどもの足の動きが40秒以上続いている時間帯の86.9%の比率に一致して生じていた。逆に、母親の深い眠りは、こどもの動きが全くないか、あるいは20秒以内の時間帯に多く観察された。 授乳のために覚醒した48回の内85.4%は、こどもの動きが母親の覚醒に先行して生じていた。特に、こどもの動きが先行し、母親が2分以内に覚醒していたのは、その内の63.4%を占めていた。その関係は、産褥1、3、6週目に至っても変わらなかった。 事例別に見ると、産褥期の生活にうまく適応していた事例が8例、適応が困難だった事例が2例認められた。 母親の途中覚醒は、こどもの動きに関連して生じ、この関係は産褥1、3、6週の間、変化が認められなかった。
Abstract-Alternative: Relationships between wakefulness of mothers and their infants'movements during night sleep in postpartum period were studied under conditions in daily life. Subjects were ten primiparae, aged 23-31yrs(mean age, 26.8yrs), who had a normal course of pregnancy and delivery.Eight of their infants were breast-fed, and two were formula-fed.Mothers' polysomnograms, (EEG, EOG, EMG, and ECG)and actigrams of infants'legs were simultaneously recorded using Medilog 9000 at home in the 1st, 3rd and 6th postpartum weeks.Mothers' sleep stages and their infants' movements were visually scored by an epoch of one minute.The infants' movements were classified into four states, MOV0, MOV1, MOV2, and MOV3.We defined MOV0 as no activities during one epoch, MOV1 as less than 20 seconds activities, MOV2 as from 20 to 40 seconds activities and MOV3 as from 40 to 60 seconds activities. The average times of wakefulness on the mothers were 102.6min(SD=23.5), 84.8min(SD=52.8), and 79.4min(SD=40.5)for 1st, 3rd and 6th postpartum weeks, respectively.There were no significant differences among them. The mothers' wakefulness coincided with the infants' movements MOV3 was 86.9% for total epochs of MOV3, while deep sleep of the mothers was observed during epochs of MOV0 and MOV1.This trend did not change across the postpartum weeks.The time-lag between the mothers' wakefulness and their infants'movements was calculated.In 85.4% of 48 times of mother's awakenings for feeding their infants, their infants began to move before their mothers woke up.In 63.4% of the cases, the mothers woke up within two minutes after their infants began to move. In the present study, eight of the ten mothers satisfactorily adapted themselves to the life style in the postpartum period, while two had difficulties in adaptation. In conclusion, ten mothers' wakefulness during night sleep in postpartum period was related to their infants' movements, and its relationship did not change through the 1st. 3rd and 6th weeks of delivery.
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URI: http://hdl.handle.net/10285/310
Appears in Collections:22号

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