カフェイン摂取量と投与方法がタイムトライアルパフォーマンスに及ぼす影響:システマティックレビューとネットワークメタアナリシス
Ruiguo Xue1, Jin Huang1, Bin Chen2
1School of Athletic Performance, Shanghai University of Sport, Shanghai 200438, China.
Nutrients
|December 11, 2025
まとめ
低用量カフェインカプセル(約3 mg/kg)が持久力タイムトライアルパフォーマンスの向上に最も効果的である。中用量カプセルとガムも有益であるが、個々の反応は異なる。
科学分野:
- 運動生理学; スポーツ栄養学; パフォーマンス向上
背景:
- カフェインは持久性アスリートにとって認識されているエルゴジェニックエイドである。; パフォーマンスに対する最適なカフェイン摂取戦略(方法と用量)は不明なままである。; 本研究は、エビデンスに基づいたカフェイン補給プロトコルの必要性に対処する。
主な方法:
- PRISMAガイドラインに従ったシステマティックレビューとネットワークメタアナリシス。; 2025年7月までの主要な科学データベースにおける包括的な文献検索。; タイムトライアルパフォーマンスに対するカフェイン投与(カプセル、ガム、マウスウォッシュ)および用量(低:≤3 mg/kg、中:4-6 mg/kg)を分析した48件の研究(612人の参加者)の包含。
結論:
- 低用量カフェインカプセル(≈3 mg/kg)は、タイムトライアルパフォーマンスを向上させるための最も効果的な戦略である。; 中用量カプセルとガムは実行可能な代替手段であるが、個々の反応のばらつきは大きい。; 今後の研究では、パーソナライズされたカフェイン補給戦略のために、遺伝的および身体組成の要因を検討すべきである。
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