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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
14
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
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