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本研究は，産前7週から産後15週間にわたって連続した26名の母親と出生から14週齢の乳児12名および年齢・産歴をマッチングした12名の非妊産婦（対照群）の睡眠日誌の解析から，産後の母親の睡眠・覚醒行動の変化や夜間における母親と乳児の覚醒行動の同期性および母親の夜間覚醒と疲労感との関連性などについて検討した。母親の夜間中途覚醒は，乳児の授乳・排泄などの世話に殆どが費やされていた。出産後の早い週ほど夜...間睡眠の乱れが大きく，乳児の睡眠・覚醒リズムの発達に伴って母親の中途覚醒時間も暫時減少した。母親の頻回の中途覚醒は，産後9週ないし10週頃まで持続するが，産後14週に至っても対照群に比し有意に増大していた。入眠状態，熱眠感，および起床気分の不調の訴え率は，妊娠末期から産後7週ないし8週頃まで有意に高かった。疲労残の訴え率は，産後10週頃まで高いレベルを維持しその後やや減少したが，産後15週にいたっても対照群に比して有意に高かった。「頭が重い」，「眠い」，「目が疲れる」，「肩がこる」の訴えスコアーは，産後どの週にあっても有意に高かった。以上の結果から，母親の夜間睡眠の乱れは，産後の早い週ほど大きく，乳児の睡眠・覚醒リズムの発達にともなって，暫時改善されていくとは言え，疲労は産後15週に至っても残存するものと推測された。
Sleep logs were performed in order to investigate the changes in the mother's sleep-wake patterns and fatigue during the period from late pregnancy to postpartum and similarities between the wake behaviours of mothers and their infants during the nights Records of sleep and wakefulness were kept on 26 mothers from the 7th week before delivery to the 15th week in the postpartum and 12 infants during first 14 weeks of life. Data of 12 non-pregnant women with matching age and obstetric history were collected and used as a control. The data indicates that the Mother's wake after sleep onset (WASO) during nocturnal sleep periods were mostly spent caring for the infant, breast feeding, diapering. There is greater irregularity of nocturnal sleep during early postpartum than during late postpartum, similarly the mother's WASO gradually decreased with the development of their infants' sleep-wake rhythm. There is a high frequency of WASO between birth and until the 9th or 10th week postpartum after delivery, and the results increased significantly when compared with the control women. In the self-esti-mation by the mother, her sleep status (deep sleep, feeding after sleep) from late pregnancy to the 7th or 8th week after delivery was significantly) disrupted than those in late pregnancy. Mean scores for subjective feelings of fatigue continued at a high level until 10 weeks postpartum and gradually decreased towards to 15th weeks of post-partum, but was still significantly higher than in the control women. The numbers of subject complaints of "feel heavy in the head" , "become drowsy" , "feel strained in the eyes" , and "feel stiff in the shoulders" were significantly higher during the early postpartum week. The irregularity continues until about the 15th week after delivery, but is gradually decreasing as the infant develops a sleep-wake rhythm and feeding rhythm. We find that increased fatigue continues until the 12th week after delivery.続きを見る
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Mendeley出力
KJ00000075262-00001