睡眠中の最低脈拍数とMMSEとの関連:長期介護認定を受けていない高齢者を対象とした多面的探索的研究
Yuji Tanaka1,2, Kozo Saito3,4, Kyoichiro Tsuchiya4,5
1New Industry Creation Hatchery Center, Tohoku University, Sendai, Miyagi, Japan. yuji.tanaka.a3@tohoku.ac.jp.
BMC geriatrics
|December 19, 2025
まとめ
高齢者の軽微な認知機能低下は、睡眠中の最低脈拍数を用いて検出できる。この測定しやすい指標は、軽度認知障害および認知症の早期検出に有望である。
科学分野:
- 老年医学
- 神経科学
- 生物医学工学
背景:
- 信頼性の高い早期認知機能低下の指標の開発は、世界的に高齢化が進む人口にとって極めて重要です。
- 軽微な認知異常には、標準的なスクリーニング検査を超えた高感度な検出方法が必要とされています。
研究 の 目的:
- 高齢者の軽微な認知機能低下の新規かつ非侵襲的な指標を特定すること。
- 日常生活活動と認知機能障害マーカーとの関連を探索すること。
主な方法:
- 認知機能障害と診断されていない高齢者35名を対象とした横断研究。
- 質問票、ミニメンタルステート検査(MMSE)、体組成、睡眠検査、活動モニタリング、運動機能、血液・栄養分析を使用。
- 89個の検査変数の中から有意な要因を特定するために、相関分析、2群比較、回帰分析を実施。
主要な成果:
- 睡眠中の最低脈拍数は、主要な非侵襲的マーカーとして浮上しました。
- この指標はミニメンタルステート検査(MMSE)スコアと強く相関しました。
- 軽度認知障害または認知症のリスク分類においても有意であることが証明されました。
結論:
- 睡眠中の最低脈拍数は、ウェアラブル技術を用いて容易に検出できる指標です。
- 本研究の結果は、個人および家族による認知機能低下の早期認識におけるその可能性を支持します。
- 本研究は、認知機能障害検出における睡眠脈拍数の感度と特異性に関する将来の研究を導くものです。
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