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最終更新日：2024/02/29

品川明穂

シナガワアキホ (Akiho Shinagawa)

論文

タイトル
タイトル（英）: Effect of acute dietary nitrate supplementation on the venous vascular response to static exercise in healthy young adults.
参照URL: https://researchmap.jp/a.shinagawa/published_papers/42226698
著者
著者（英）: Anna Oue,Yasuhiro Iimura,Akiho Shinagawa,Yuichi Miyakoshi,Masako Ota
担当区分
概要
概要（英）: The purpose of this study was to test the hypothesis that acute intake of inorganic nitrate (NO3−) via supplementation would attenuate the venoconstriction and pressor response to exercise. Sixteen healthy young adults were assigned in a randomized crossover design to receive beetroot juice (BRJ) or an NO3−-depleted control beverage (prune juice: CON). Two hours after consuming the allocated beverage, participants rested in the supine position. Following the baseline period of 4 min, static handgrip exercise of the left hand was performed at 30% of the maximal voluntary contraction for 2 min. Mean arterial pressure (MAP) and heart rate (HR) were measured. Changes in venous volume in the right forearm and right calf were also measured using venous occlusion plethysmography while cuffs on the upper arm and thigh were inflated constantly to 30−40 mmHg. The plasma NO3− concentration was elevated with BRJ intake (p < 0.05). Exercise increased MAP and HR and decreased venous volume in the forearm and calf, but there were no differences between CON and BRJ. Thus, these findings suggest that acute BRJ intake does not alter the sympathetic venoconstriction in the non-exercising limbs and MAP response to exercise in healthy young adults, despite the enhanced activity of nitric oxide.
出版者・発行元
出版者・発行元（英）
誌名
誌名（英）: Nutrients
巻: 14
号: 21
開始ページ
終了ページ
出版年月: 2022年10月24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/10.3390/nu14214464
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品川 明穂

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品川明穂