表題番号：2018S-174
日付：2019/04/08
研究課題運動時の肝および筋グリコーゲン利用に及ぼす水素水摂取の影響
| 研究者所属（当時） | 資格 | 氏名 | |
|---|---|---|---|
| （代表者） | スポーツ科学学術院 スポーツ科学部 | 助教 | 河村 拓史 |
- 研究成果概要
-
The purpose of this study was to examine the effect of chronic molecular
hydrogen (H2) intake on liver and skeletal muscle glycogen
utilization during exercise in rats. Male SD rats were randomly divided into
four groups: control (C), H2 water (H2), control-exercise (C-Ex), H2
water-exercise (H2-Ex). Each group was given mineral water or H2
water ad libitum for 2 weeks. Then the
exercise groups (C-Ex and H2-Ex) were performed treadmill running at
18 m/min (6° graded) for 60 min. Blood, skeletal muscle and liver samples
were analysed for tissue glycogen contents and blood energy substrats (i.e., glucose,
free fatty acid, lactate). Two-way ANOVA revealed that H2 intake decreased
free fatty acid (p < 0.001) and
increased lactate concentration (p =
0.004). In comparison of the change from the rest in C-Ex and H2-Ex
groups, blood free fatty acid and liver glycogen content were significantly lower
in H2-Ex group than in the C-Ex group (p =
0.001, p = 0.035, respectively). On the other hand, blood
lactate concentration was significantly higher in the H2-Ex group than in
the C-Ex group. These results suggest that chronic H2 water intake may
increase liver glycogen utilization without changing muscle glycogen
utilization during exercise.