生体電気阻力分析で測定された幹筋量指数と男性の過活動性膀症状との関連: 遡及的横断分析
Hoyoung Bae1, Jung Hoon Lee1, Min Chul Cho1
1Department of Urology, SMG-SNU Boramae Medical Center, Seoul, Korea.
Investigative and clinical urology
|September 2, 2025
まとめ
骨幹筋量指数 (sTMI) は,男性における中等から重度の過活動性膀 (OAB) の独立した予測指標である. 低いSTMIは,OABの症状を発症するリスクが高いことを示します.
科学分野:
- 泌尿器科
- 高齢者医療
- 体組成分析
背景:
- OABは,成人男性の生活の質に重大な影響を及ぼします.
- OABの病理生理学における身体の構成,特に筋肉の役割は完全に理解されていません.
研究 の 目的:
- 幹筋量,特に骨格幹筋量指数 (sTMI) と成人男性におけるOAB症状との関連を調査する.
- 生物電気阻力分析 (BIA) を用いて,sTMIがOABの独立予測値であるかどうかを判断する.
主な方法:
- 40歳以上の5475人の男性による健康診断データを遡及分析した.
- OAB症状スコア (OABSS) と緊急性スコアに基づくOAB診断
- BIAで測定された体組成; sTMIは骨格幹の筋肉質をBMIで割ったものとして計算される.
主要な成果:
- 全体的にOABの罹患率は10. 6%でした.
- 単元分析では,脂肪のない体量,総筋肉量,OABとSTMIの間の逆相関が示された.
- 多変量分析により,sTMIは中等から重度のOABの有意な独立した予測因子 (OR 0. 486, p=0. 036) として特定されました.
- sTMIは,年齢と比較して重度のOABに対する優れた予測性能を示した (AUC 0. 721対0. 706).
結論:
- sTMIはBIAから派生した指標で,男性における中等から重度のOABの独立予測指標です.
- 筋肉の組成は,OABの発達とリスク評価に役割を果たす可能性があります.
- sTMIは,臨床実務におけるOABリスクの階層化のための潜在的なツールを提供します.
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