Association between timing of hot water bathing before bedtime and night-/sleep-time blood pressure and dipping in the elderly: a longitudinal analysis for repeated measurements in home settings. 12

• 資料種別: 博士論文
• タイトル: Association between timing of hot water bathing before bedtime and night-/sleep-time blood pressure and dipping in the elderly: a longitudinal analysis for repeated measurements in home settings.
• 巻次・部編番号: 36 12
• 著者・編者: Tai, Yoshiaki; Saeki, Keigo; Yamagami, Yuki; Yoshimoto, Kiyomi; Kurumatani, Norio; Nishio, Kenji; Obayashi, Kenji
• 著者標目: Tai, Yoshiaki; Saeki, Keigo; Yamagami, Yuki; Yoshimoto, Kiyomi; Kurumatani, Norio; Nishio, Kenji; Obayashi, Kenji
• 出版事項: Taylor & Francis
• 出版年月日等: 2019-12; 36 12
• 出版年（W3CDTF）: 2019-12
• 並列タイトル等: 高齢者の入浴タイミングと夜間血圧低下の関連：自宅での繰り返し実測データを用いた縦断的分析
• タイトル（掲載誌）: Chronobiology international
• 掲載ページ: 1714-1722
• ISSN（掲載誌）: 07420528
• 授与機関名: 奈良県立医科大学
• 授与年月日: 2020-09-30
• 授与年月日（W3CDTF）: 2020-09-30
• 報告番号: 甲第751号
• 学位: 博士（医学）
• 博論授与番号: 甲第751号
• 本文の言語コード: eng
• 件名標目: Bathing; nighttime blood pressure; sleep-time blood pressure; dipping; hot water; passive body heating
• 対象利用者: 一般
• 一般注記: type:Thesis; Hot water bathing – a Japanese traditional practice – has not been evaluated for its association with night- and sleep-time blood pressure (BP) in large population. In this longitudinal analysis, bathing parameters and ambulatory BP were repeatedly measured for 2 nights in 758 Japanese elderly individuals. Participants were divided into three groups according to tertile values of time soaked in the bathtub (Duration: tertile value, 11 and 15 min), time from bathing-end to bedtime (Time before bedtime: tertile value, 42 and 106 min), and temperature of hot water in the bathtub (Water temp: tertile value, 40.3 and 41.2 °C). Participants’ mean age was 70.9 years, and mean night- and sleep-time systolic BP (SBP) and dipping were 115.1 ± 16.1, 114.2 ± 16.2 mmHg, and 14.2 ± 8.8%, respectively. Multivariable mixed-effect linear regression models adjusted for potential confounding factors suggested that nighttime SBP was significantly lower in the intermediate Time before bedtime group by 1.7 mmHg (95% CI, 0.2–3.1) and in the short group by 1.9 mmHg (95% CI, 0.1–3.7) than that in the long group. Dipping was significantly greater in the intermediate Time before bedtime group by 1.8% (95% CI, 0.7–2.9) and in the short group by 1.8% (95% CI, 0.6–3.1) than that in the long group. These associations were consistent regarding sleep-time SBP. Conversely, Water temp and Duration did not significantly associate with any ambulatory BP parameter. Remarkably, Time before bedtime significantly prolonged with increases in tertiles of Water temp (P for trend = 0.006). In conclusion, the findings of this study revealed that Japanese hot water bathing, especially the short time from bathing-end to bedtime, was associated with lower night- and sleep-time BP and greater dipping in an elderly population.; 博士（医学）・甲第751号・令和2年9月30日; This is a post-peer-review, pre-copyedit version of an article published in Chronobiology international. The final authenticated version is available online at: https://doi.org/10.1080/07420528.2019.1675685.; identifier:Chronobiology international Vol.36 No.12 p.1714-1722 (2019 Dec); identifier:07420528; identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/3775; identifier:Chronobiology international, 36(12): 1714-1722
• 国立国会図書館永続的識別子: info:ndljp/pid/11674106; https://dl.ndl.go.jp/pid/11674106
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• 収集根拠: 博士論文（自動収集）
• 受理日（W3CDTF）: 2021-05-23T18:24:43+09:00
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 関連情報（URI）: https://doi.org/10.1080/07420528.2019.1675685
• 掲載誌（URI）: http://hdl.handle.net/10564/3775
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

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