日々の活動エネルギー消費と高齢者の死亡率
Todd M Manini1, James E Everhart, Kushang V Patel
1National Institute on Aging, Laboratory of Epidemiology, Demography and Biometry, Bethesda, Md 20892, USA. maninit@mail.nih.gov
JAMA
|July 13, 2006
まとめ
日々の活動を通じてより多くのエネルギーを費やすことは,高齢者の死亡リスクの低下と関連しています. 自由生活活動のエネルギー消費が高くなるということは,構造的な運動に関係なく,死亡の可能性を大幅に減らす.
科学分野:
- ゲロントロジーはゲロントロジーの学科です.
- 公衆衛生は公衆衛生である.
- メタボリック科学 メタボリックサイエンス
背景:
- 運動参加は死亡率を減らすことが知られている.
- しかし,自由生活環境における一般的な日々のエネルギー消費の生存効果は,あまり理解されていない.
- 非運動活動発熱 (NEAT) の調査は,全体的な健康結果を理解するために非常に重要です.
研究 の 目的:
- 自由生活活動におけるエネルギー消費と,高齢者の全因死亡率との関連を調査する.
- 単に,何らかの活動を通じてエネルギーを費やすだけで,生存の利点を授与するかどうかを判断する.
主な方法:
- 302人の健康な高齢者 (70-82歳) は,2週間にわたって,二重ラベル付きの水を用いて,総エネルギー消費量を測定しました.
- 自由生活活動のエネルギー支出は,休憩時の代謝率と食事の熱効果を総エネルギー支出から引き算することによって算出されました.
- すべての原因による死亡率を追跡するために,参加者は平均6.15年間追跡されました.
主要な成果:
- 自由生活活動による日々のエネルギー消費が高くなるということは,あらゆる原因による死亡のリスクが著しく低下するとの関連があった.
- エネルギー支出の最高階層の個人は,最低階層 (HR,0.31) に比べて死亡リスクが69%低かった.
- この関連性は,さまざまな健康およびライフスタイル要因を調整した後も依然として有意であった.
結論:
- 客観的に測定された自由生活活動のエネルギー支出は,健康な高齢者の死亡リスクの低下の強力な予測指標です.
- 研究結果は,日常活動を通じてあらゆる形態のエネルギー消費が長寿に寄与する可能性があることを示唆している.
- 構造的な運動を超えて,一般的な身体活動の促進は,高齢者のための重要な公衆衛生戦略である可能性があります.
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