筋高縮に対する炭水化物摂取の効果:体系的なレビューとメタ解析
Menno Henselmans1, Fredrik Tonstad Vårvik2, Mikel Izquierdo3,4
1Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Calle de Irunlarrea, 3, 31008, Pamplona, Navarra, Spain. info@mennohenselmans.com.
Sports medicine (Auckland, N.Z.)
|February 19, 2026
まとめ
高い炭水化物の摂取量は,レジスタンストレーニングによる筋肉の成長を有意に改善しません. 炭水化物を理解するためにさらなる研究が必要である.
科学分野:
- スポーツ栄養 スポーツ栄養
- 運動生理学 運動生理学
- 筋肉の代謝についてです.
背景:
- 高炭水化物ダイエットは,筋肉の縮のために一般的に推奨されます.
- 総カロリーから分離して,炭水化物の摂取が筋肉の成長に与える特定の影響については,さらなる調査が必要である.
- 以前の分析では,ケトゲン状態以外での炭水化物の孤立した効果を体系的に評価していませんでした.
研究 の 目的:
- 高炭水化物の摂取が筋肉の肥大化に及ぼす影響をメタ分析する.
- イソニトロゲン条件下での炭水化物の効果を評価するために (タンパク質の摂取量と同等).
主な方法:
- 主要なデータベース (MEDLINE,SPORTDiscus,SciELO,Google Scholar) での体系的な文献検索が2025年6月に更新されました.
- レジスタンストレーニング中に摂取する炭水化物の高さと低さを比較したランダム化比較試験の含有.
- ランダム効果メタ解析による標準化平均差分 (SMD) のスコア,異質性およびバイアスの評価 (PRISMA,Cochrane RoB2,GRADE,TESTEX).
主要な成果:
- 11つの研究が含まれており,総合的な分析では,炭水化物の摂取が筋肉肥大化に有意な効果を示さなかった (SMD = 0.15,p = 0.23).
- 研究全体で観察された些細な異質性は無視できます.
- サブグループ分析 (イソカロリー試験,直接画像) も非有意な結果を示した;証拠のGRADE確実性は低かった.
結論:
- 高い炭水化物摂取量は,レジスタンストレーニング中に独立して筋肉高縮を促進しない可能性があります.
- この発見の確実性は,不正確性とバイアスの適度なリスクのために低いです.
- 将来の研究は,エネルギー摂取を厳格に制御し,炭水化物の役割を明確にするために直接的な形態学的測定を使用する必要があります.
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