The effects of change in liver glycogen on energy metabolism

2017 Fiscal Year Final Research Report

• Project/Area Number: 16H07476
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Sports science
• Research Institution: National Agency for the Advancement of Sports and Health
• Principal Investigator: Iwayama Kaito 独立行政法人日本スポーツ振興センター国立スポーツ科学センター, スポーツ研究部, 契約研究員 (30781249)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Keywords: グリコーゲン

Outline of Final Research Achievements

Liver glycogen is not only an energy source but also a trigger of energy metabolism. The purpose of present study was to investigate and compare the diurnal variation in the glycogen concentration of the liver and muscle using carbon magnetic resonance spectroscopy (13C MRS). The changes in the muscle glycogen concentration were small through an experimental period. The larger diurnal variation of the liver glycogen content was shown: the lowest value was observed early in the morning. This results may indicate why exercise performed before breakfast led to increased 24-h fat oxidation.

Free Research Field

エネルギー代謝