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Updated: Feb 28, 2026

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中強度および高強度有酸素運動は、第2換気閾値まで、作業記憶や認知の柔軟性ではなく、抑制制御を強化する:無作為化クロスオーバー試験
Marcelo Hiro Akiyoshi Ichige1, Paulo Roberto Santos-Silva1, Julia Maria D'Andrea Greve1
1Laboratorio de Estudos do Movimento, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil.
Clinics (Sao Paulo, Brazil)
|February 25, 2026
まとめ
中強度および高強度(急性)有酸素運動は、反応時間を改善することにより、抑制制御を選択的に強化する。しかし、身体活動的な成人における作業記憶や認知の柔軟性には有意な影響を与えない。
科学分野:
- 認知神経科学
- 運動生理学
- 人間のパフォーマンス
背景:
- 急性運動が実行機能に及ぼす影響は議論の的となっており、運動強度の測定の一貫性のなさが相反する結果に寄与している。
- 抑制制御、作業記憶、認知の柔軟性を含む実行機能は、目標指向行動に不可欠である。
- 運動強度の正確な定義は、特定の認知プロセスに対する急性効果を理解するために不可欠である。
研究 の 目的:
- 中強度(MOD)および高強度(VIG)有酸素運動が、抑制制御、作業記憶、および認知の柔軟性に及ぼす差次的影響を調査すること。
- 心拍数予備、換気閾値、および自覚的運動強度評価の組み合わせを使用して、運動強度を厳密に定義すること。
- 特定の強度レベルでの有酸素運動の急性認知効果を明らかにすること。
主な方法:
- 26人の身体活動的な成人が無作為化クロスオーバー研究に参加した。
- 参加者は、安静(REST)、中強度運動(MOD)、高強度運動(VIG)の3つの条件を完了した。
- 認知パフォーマンスは、Go/No-Goテスト(抑制制御)、2-backテスト(作業記憶)、およびマルチタスクテスト(認知の柔軟性)を使用して評価された。
主要な成果:
- 抑制制御は、反応時間(RT)の短縮(Go/No-Go課題)によって証明されるように、REST、MOD、VIGのすべての条件下で有意な改善を示した。抑制制御課題の正答率は、すべての条件下で変化しなかった。作業記憶または認知の柔軟性のパフォーマンスに有意な差は、REST、MOD、VIGの条件下で観察されなかった。
結論:
- 第2換気閾値まで定義された急性中強度および高強度有酸素運動は、反応時間をスピードアップすることによって、抑制制御を選択的に強化する。
- 作業記憶および認知の柔軟性は、これらの強度での急性有酸素運動によって有意に影響されない。
- 本研究は、運動強度に対する厳密なマルチマーカーアプローチを提供し、特定の実行機能に対する有酸素運動の急性効果についてのより明確な洞察を提供する。
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