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| Abstract |
The purpose of this study was to investigate the characteristics of sleep-wake behavior during the period from late pregnancy to puerperium by evaluating the number of actigraphic activities in a prim...ipara woman and to compare the results with the findings from sleep logs. An regularity of the sleep-wake behavior was not possible during about 5th weeks after delivery. When compared to that in the 37 to 39 weeks of pregnancy, the wake after sleep onset (WASO) was longer during the entire postpartum period. During the second and third weeks of postpartum period, the sleep efficiency was lowest, and the WASO was longest, but they both began to recover slightly after that. Most waking hours at night were spent on breast-feeding or taking care of baby. Except for the number of daytime naps and sleep latency, the results of actigraph strongly correlated with the contents of the sleep logs. These results were indicative of the association between the lactation cycle to neonate and the sleep-wake cycle.
本研究は，妊娠・分娩によって夜間睡眠や昼間の睡眠がどのような影響を受けるのかを，長期間，連続測定可能な携帯用活動計アクティグラフと睡眠日誌によって検討した。その結果，産後約1カ月までの睡眠・覚醒リズムの乱れは妊娠末期より顕著であること，特に産褥2週目から5週目にかけて夜間の中途覚醒が増大すること，また，新生児の授乳リズムが確立する時期に母親の睡眠・覚醒リズムもほぼ安定した傾向を示していくことなどの特徴を明らかにした。これら睡眠・覚醒行動は，新生児の授乳リズムの確立ないしは睡眠・覚醒リズムの発達と関連していることを考察した。show more
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KJ00000075218-00001