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最終更新日:2024/12/23
元永 恵子
モトナガ ケイコ
(Keiko Motonaga)
論文
- タイトル
- タイトル(英)
- Effect of different carbohydrate intakes within 24 hours after glycogen depletion on muscle glycogen recovery in Japanese endurance athletes.
- 参照URL
- https://researchmap.jp/k.motonaga/published_papers/36554805
- 著者
- 著者(英)
- Keiko Namma-Motonaga,Emi Kondo,Takuya Osawa,Keisuke Shiose,Akiko Kamei,Motoko Taguchi,Hideyuki Takahashi
- 担当区分
- 筆頭著者
- 概要
- 概要(英)
- Daily muscle glycogen recovery after training is important for athletes. Few studies have reported a continuous change in muscle glycogen for 24 h. We aimed to investigate the changes in carbohydrate intake amount on muscle glycogen recovery for 24 h after exercise using 13C-magnetic resonance spectroscopy (13C-MRS). In this randomized crossover study, eight male participants underwent prolonged high-intensity exercise, and then consumed one of the three carbohydrate meals (5 g/kg body mass (BM)/d, 7 g/kg BM/d, or 10 g/kg BM/d). Glycogen content of thigh muscle was measured using 13C-MRS before, immediately after, and 4 h, 12 h and 24 h after exercise. Muscle glycogen concentration decreased to 29.9 ± 15.9% by exercise. Muscle glycogen recovery 4–12 h after exercise for the 5 g/kg group was significantly lower compared to those for 7 g/kg and 10 g/kg groups (p < 0.05). Muscle glycogen concentration after 24 h recovered to the pre-exercise levels for 7 g/kg and 10 g/kg groups; however, there was a significant difference for the 5 g/kg group (p < 0.05). These results suggest that carbohydrate intake of 5 g/kg BM/d is insufficient for Japanese athletes to recover muscle glycogen stores 24 h after completing a long-term high-intensity exercise.
- 出版者・発行元
- 出版者・発行元(英)
- MDPI AG
- 誌名
- 誌名(英)
- Nutrients
- 巻
- 14
- 号
- 7
- 開始ページ
- 1320
- 終了ページ
- 1320
- 出版年月
- 2022年3月22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/nu14071320
- 共同研究・競争的資金等の研究課題