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最終更新日：2026/03/13
星 大輔
ホシ ダイスケ
(Daisuke Hoshi)
論文
- タイトル
- タイトル（英）
- Cerebral Blood and Cerebrospinal Fluid Flow Dynamics in Endurance Athletes: Associations With Aortic Recoil and Heart Rate
- 参照URL
- https://researchmap.jp/jpsport_hoshi/published_papers/52924255
- 著者
- 著者（英）
- Daisuke Hoshi,Marina Fukuie,Tsubasa Tomoto,David C. Zhu,Rong Zhang,Keigo Ohyama‐Byun,Seiji Maeda,Jun Sugawara,Takashi Tarumi
- 担当区分
- 筆頭著者
- 概要
- 概要（英）
- ABSTRACT Endurance training elicits profound cardiovascular adaptations, including lower heart rate (HR), greater stroke volume (SV), and enhanced aortic Windkessel function. This study aimed to investigate cerebral blood and cerebrospinal fluid (CSF) flow dynamics in endurance athletes and their relations with cardiovascular parameters. Fifteen young male endurance athletes were compared with 19 age‐matched sedentary male controls. In the resting supine condition, CINE phase‐contrast MRI acquired the extra‐ and intracranial cerebral blood and CSF flow waveforms, as well as HR, SV, and ascending aortic cross‐sectional area waveform. Cerebral blood and CSF flow volume (mL/beat) and rate (mL/min) were quantified for the full cardiac cycle and separately for systolic and diastolic phases. Aortic cross‐sectional area change was temporally integrated to quantify aortic expansion and recoil. Athletes exhibited higher aortic recoil (5.7 cm 2 ·s [4.1, 7.3] vs. 4.1 cm 2 ·s [2.6, 5.6]) and SV (97 ± 18 mL vs. 82 ± 11 mL) and lower HR (53 ± 6 bpm vs. 67 ± 12 bpm) than controls. Total cerebral arterial blood and CSF flow volumes and rates across the full cardiac cycle were similar between groups; however, athletes showed significantly greater diastolic arterial flow volume and lower systolic arterial flow rate. The association between lower HR and greater diastolic arterial flow volume was mediated by higher aortic recoil across all participants. These results suggest that enhanced aortic recoil in endurance athletes sustains diastolic cerebral arterial flow volume across a prolonged cardiac cycle, enabling more efficient brain perfusion with fewer cardiac cycles than sedentary controls.
- 出版者・発行元
- 出版者・発行元（英）
- Wiley
- 誌名
- 誌名（英）
- Scandinavian Journal of Medicine & Science in Sports
- 巻
- 36
- 号
- 3
- 開始ページ
- 終了ページ
- 出版年月
- 2026年3月12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
- 0905-7188
- DOI URL
- https://doi.org/10.1111/sms.70261
- 共同研究・競争的資金等の研究課題