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最終更新日：2026/04/15
門口 智泰
(Tomoyasu Kadoguchi)
論文
- タイトル
- タイトル（英）
- Muscular stress is equal when resistance exercise with blood flow restriction is matched in total work volume: A cross-sectional, cross-over study.
- 参照URL
- https://researchmap.jp/m-s-m-i/published_papers/44475691
- 著者
- 著者（英）
- Koichi Okita,Masashi Omokawa,Shingo Takada,Tomoyasu Kadoguchi,Noriteru Morita,Takashi Yokota
- 担当区分
- 概要
- 概要（英）
- AIM: We compared muscular metabolic stress during exercise performed at multiple intensities, from very low to moderate, with blood flow restriction (BFR) adjusted by the same work volume. METHODS: Twenty-five healthy young adults performed unilateral plantar flexion at 1 repetition/2 s in a magnetic resonance system. The BFR exercise protocols were as follows: (A) exercise with 10% of one repetition maximum (1-RM) for 360 s, (B) 15% 1-RM for 240 s, (C) 20% 1-RM for 180 s, (D) 30% 1-RM for 120 s, and (E) 40% 1-RM for 90 s. All protocols had the same total work volume (load × repetitions = 1800). A high-intensity protocol at 65% 1-RM without BFR (60 s) was also performed for comparison. We used 31 P-magnetic resonance spectroscopy to evaluate the muscular metabolic stress in the subjects' calf muscle, defined as decreases in phosphocreatine and intramuscular pH. RESULTS: The phosphocreatine depletion (A: 15.6 ± 0.7, B: 14.8 ± 0.8, C: 15.2 ± 0.6, D: 14.3 ± 0.6, E: 10.9 ± 0.5 mM; no significant difference [ns]) and the intramuscular pH decrease (A: 6.82 ± 0.02, B: 6.84 ± 0.01, C: 6.83 ± 0.02, D: 6.83 ± 0.02, E: 6.77 ± 0.02; ns) at the end of each exercise were similar and greater than those produced by the 65% 1-RM without BFR. CONCLUSION: If the total work volumes are equal, the metabolic stress in exercising muscle may reach similar levels at the end of exercise with BFR and could provide similar successful training effects.
- 出版者・発行元
- 出版者・発行元（英）
- 誌名
- 誌名（英）
- Acta physiologica (Oxford, England)
- 巻
- 号
- 開始ページ
- e14097
- 終了ページ
- 出版年月
- 2024年1月17日
- 査読の有無
- 査読有り
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- DOI URL
- https://doi.org/10.1111/apha.14097
- 共同研究・競争的資金等の研究課題