NUTRITION IN SPORT
consistent with the guidelines above, allow better recovery/maintenance of muscle glyco- gen levels during periods of heavy trai ...
Holt, S., Brand, J., Soveny, C. & Hansky, J. (1992) Rela- tionship of satiety to postprandial glycaemic, insulin and cholecy ...
Introduction During exercise, the energy demands of muscle contraction will fluctuate enormously. For muscle contraction to occu ...
reactions involved in the degradation of glucose- 6-phosphate to pyruvate. Glycogenolysis The integrative nature of energy metab ...
small increase in AMP concentration (10mmol · l–1) can markedly increase the in vitroactivity of phosphorylasea(Ren & Hultma ...
entering the electron transport chain. In the elec- tron transport chain, NADH and FADH are oxidized and the energy generated is ...
after 20 s of contraction. This suggests that the rapid utilization of PCr may buffer the momen- tary lag in energy provision fr ...
In practice, this is usually exercise intensities between 60% and 85% of maximal oxygen con- sumption. Continuous exercise of an ...
amino acids as substrates (Hultman & Nilson 1971; Nilsson & Hultman 1973). The rate of hepatic glucose release during ex ...
Muscle fibre type responses The conclusions presented so far have been based on metabolite changes measured in biopsy samples ob ...
sis is occurring at a near maximal rate during intense exercise. Surprisingly, during intermit- tent isometric contraction with ...
Conclusion The carbohydrate stores of the body, liver and muscle glycogen, are utilized immediately at start of exercise. Glucos ...
Wahren, J. (1974) Substrate turnover during pro- longed exercise in man: splanchnic and leg metabo- lism of glucose, free fatty ...
Nosek, T.M., Fender, K.Y. & Godt, R.E. (1987) It is dipro- tonated inorganic phosphate that depresses force in skinned skele ...
Introduction The importance of carbohydrates as a fuel source during physical activity has been recognized for many years (Krogh ...
and maintaining muscle glycogen stores for com- petition and training. Regulation of muscle glycogen synthesis Figure 7.1 illust ...
normal (Bergström et al. 1967). This elevation in muscle glycogen above normal is referred to as glycogen supercompensation. Int ...
tional increase in insulin-stimulated glucose transport and glycogen synthesis. Ren et al. (1994) concluded that a rapid increas ...
diet, the muscle glycogen concentration was 205.5mmol·g–1wet weight. This represented a 100% increase above the initial muscle g ...
experimental period to ensure that subjects started with similar muscle glycogen levels. The lower carbohydrate diet produced a ...
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