Fermented Grain Beverage Supplementation Following Exercise Promotes Glycogen Supercompensation in Rodent Skeletal Muscle and Liver

Tsubasa Shibaguchi (1Venture Business Laboratory, Organization of Frontier Science and Innovation, Kanazawa University, Ishikawa 920-1192, Japan)
Rie Ishizawa (Venture Business Laboratory, Organization of Frontier Science and Innovation, Kanazawa University,Ishikawa 920-1192, Japan Waseda Institute of Sports Nutrition, Comprehensive Research Organization, Waseda University, Saitama 359-1192, Japan)
Atsushi Tsuji (Department of Chemistry and Food, Industrial Research Institute of Ishikawa, Ishikawa 920-8203, Japan)
Yuya Yamazaki (Department of Chemistry and Food, Industrial Research Institute of Ishikawa, Ishikawa 920-8203, Japan)
Keizo Matsui (Fukumitsuya Sake Brewery, Ishikawa 920-8638, Japan)
Kazumi Masuda (Venture Business Laboratory, Organization of Frontier Science and Innovation, Kanazawa University,Ishikawa 920-1192, Japan Faculty of Human Sciences, Kanazawa University, Ishikawa 920-1192, Japan)

Indonesian Journal of Science and Technology
Vol 2, No 1 (2017): IJoST: VOLUME 2, ISSUE 1, April 2017

The purpose of this study was to investigate the effects of post-endurance exercise fermented grain beverage (FGB) supplementation on glycogen reaccumulation in rat skeletal muscle and liver. Twelve-hour fasted male Wistar rats, 10-week-old, performed five 30-min bouts of swimming separated by 5-min rest periods in order to deplete tissue glycogen storage. The rats were orally administrated either water, glucose, or FGB in 30, 60, 90, and 120 min after the exercise. Immediately and/or 240 min after the exercise, soleus and gastrocnemius muscles and liver were removed and analyzed. A large glycogen reaccumulation was observed in skeletal muscles and liver at 240 min after the exercise when either glucose or FGB were ingested. This response tended to be greater in FGB-treated than in glucose-treated animals, particularly in liver and gastrocnemius muscle. These results suggest that post-endurance exercise FGB supplementation enhances glycogen restoration in both skeletal muscle and liver.