筋力トレーニングは高強度インターバルトレーニングと比較して、皮質脊髄出力を優先的に強化する
Mohamad Rostami1, Annemarie Lee1, Ashlyn K Frazer1
1Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, Australia.
Journal of strength and conditioning research
|February 4, 2026
まとめ
筋力運動（SE）は、高強度インターバルトレーニング（HIIT）よりも皮質脊髄の興奮性を有意に高める。SEは神経出力を強化し、神経リハビリテーションプログラムに有益な可能性を提供する。
科学分野:
- 神経科学
- 運動生理学
- 運動制御
背景:
- 皮質脊髄反応は、トレーニングの種類、筋肉群、収縮によって異なる。
- 高強度インターバルトレーニング（HIIT）と筋力運動（SE）の高強度インターバルトレーニング（HIIT）と筋力運動（SE）の皮質脊髄興奮性と抑制に対する異なる効果は、まだ十分に理解されていない。
- 以前の研究は、HIITに関与する下肢ではなく、上肢に焦点を当てることが多かった。
主な方法:
- 18人の健康な未訓練被験者が、HIIT、SE、および対照セッションの3つの条件に参加した。
- 経頭蓋磁気刺激（TMS）と末梢神経刺激を用いて、皮質脊髄、皮質内、および脊髄の興奮性を評価した。
- 測定は、ベースラインと運動後5分で行われた。
結論:
- 筋力運動（SE）は、高強度インターバルトレーニング（HIIT）と比較して、下肢筋における急性皮質脊髄興奮性を優先的に高める。
- これらの発見は、SEが短期的には神経出力を改善する上でより効果的である可能性を示唆している。
- 結果は、皮質脊髄興奮性の低下を特徴とする状態の神経リハビリテーションプログラムの設計に影響を与える。
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