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The purpose of this study was to examine muscle glycogen recovery with glucose feeding (GF) compared with fructose feeding (FF) during the first 8 h after partial glycogen depletion using 13C-nuclear magnetic resonance (NMR) on a clinical 1.5-TNMR system. After measurement of the glycogen concentration of the vastus lateralis (VL) muscle in seven male subjects, glycogen stores of the VL were depleted by bicycle exercise. During 8 h after completion of exercise, subjects were orally given either GF or FF while the glycogen content of the VL was monitored by 13C-NMR spectroscopy every second hour. The muscular glycogen concentration was expressed as percentage of the glycogen concentration measured before exercise. The glycogen recovery rate during GF (4.2 +/- 0.2%/h) was significantly higher (P < 0.05) compared with values during FF (2.2 +/- 0.3%/h). This study shows that 1) muscle glycogen levels are perceptible by 13 C-NMR spectroscopy at 1.5 T and 2) the glycogen restoration rate is higher after GF compared with after FF.
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
April 1991,
Journal of applied physiology (Bethesda, Md. : 1985),
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
December 1983,
Journal of applied physiology: respiratory, environmental and exercise physiology,
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
September 1986,
Journal of applied physiology (Bethesda, Md. : 1985),
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
December 1987,
Medicine and science in sports and exercise,
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
May 2007,
Journal of applied physiology (Bethesda, Md. : 1985),
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
September 1978,
The American journal of physiology,
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
January 1995,
Journal of vascular research,
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
March 1997,
Journal of applied physiology (Bethesda, Md. : 1985),
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
December 2000,
Magma (New York, N.Y.),
A J Van Den Bergh, and
S Houtman, and
A Heerschap, and
N J Rehrer, and
H J Van Den Boogert, and
B Oeseburg, and
M T Hopman
January 1989,
European journal of applied physiology and occupational physiology,
