枝分かれ鎖のアミノ酸と運動を組み合わせて,高齢者の身体機能と生活の質を向上させる:試験的なランダム化制御試験の結果
Ronna Robbins1,2,3, Jason C O'Connor1,4, Tiffany M Cortes1,3,5,6
1Division of Geriatrics, Gerontology & Palliative Medicine, Department of Medicine, The University of Texas Health Science Center San Antonio, 7703 Floyd Curl Dr., San Antonio, TX 78229, USA.
まとめ
この研究では,枝分かれ鎖アミノ酸 (BCAA) が運動と併用されると,身体的パフォーマンスを著しく改善し,高齢者の疲労やうつ病の症状を軽減することが判明しました.
科学分野:
- ゲロントロジーと運動生理学
背景:
- 老化は身体機能の低下と 疲労の増大と関連しています
- 分岐鎖アミノ酸 (BCAA) 補給などの栄養介入は,これらの年齢に関連する変化を軽減することができます.
- 運動は健康的な老化の礎石ですが 栄養補助によってその効果を調節できます
研究 の 目的:
- 高齢者の身体的パフォーマンス,疲労,生活の質に対するBCAA補給と運動の組み合わせを調査する.
- この集団において,BCAAが構造化された運動プログラムの効果を高めるかどうかを判断する.
主な方法:
- 8週間にわたる試験的なランダム化,ダブルブラインド,プラセボ対照試験を実施した.
- 20人の高齢者 (平均年齢70. 5歳) をランダムに,運動+BCAA (100 mg/ kg/ d) または運動+プラセボに分けました.
- 参加者は週3回 適度な有酸素運動とレジスタンストレーニングを行いました
主要な成果:
- 運動 + BCAA群は,プラセボ群と比較して,握り力,椅子スタンド,および400 mの歩行時間の有意な改善を示しました.
- BCAAサプリメントは,プラセボグループと比較して疲労 (-45%) とうつ症状 (-29%) を大幅に減少させた.
- また,BCAA群では不眠症の重度,疲労度,生活の質の改善も認められた.
結論:
- BCAA補給と運動を組み合わせると 老人の身体機能が向上する見込みです
- この介入は高齢者の 疲労やうつ病の症状を軽減する 効果的な戦略かもしれません
- より大きなサンプルサイズでのさらなる研究は,これらの予備的な発見を確認するために正当化されています.
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