Metabolic effects of a protein-supplemented carbohydrate drink in marathon runners

Article Abstract:

A protein-supplemented carbohydrate drink did not change metabolites and hormones in marathon runners, but levels of plasma free fatty acids were significantly lower, whereas levels of most amino acids and urea were significantly higher and levels of plasma free fatty acids were significantly lower. The supplemented protein was absorbed and likely oxidized at least partially during the run. There were no obvious negative metabolic effects. Metabolic effects of a protein-supplemented carbohydrate drink have been studied in marathon runners in a field study. A milk protein hydrolysate supplemented drink was used and compared to the same drink without the protein.

Dietary supplements, Milk proteins

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Blood glucose and glucoregulatory hormone responses to solid and liquid carbohydrate ingestion during exercise

Article Abstract:

Comparisons of liquid and solid carbohydrate intakes reveal similar physiological affects after exercise. Subjects ingested either solid or liquid carbohydrate and performed three cycling trials. Testing of exercise performance, blood glucose, glucoregulatory hormone and metabolic responses were similar between the two groups. Additionally, no significant variances between the groups were found for insulin, plasma glucose, lactate or glycerol.

Research, Reports, Carbohydrates, Blood sugar, Blood glucose, Hormone research, Carbohydrates in the body

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Plasma B-6 vitamer changes following a 50 kilometer ultramarathon

Article Abstract:

This article examines the effects of prolonged, high-endurance exercise on vitamin B-6 metabolism and changes in plasma concentrations of V-6 vitamers. Blood samples taken before and after a fifty kilometer marathon reveal post-race decreases in plasma pyridoxyl 5-phosphate and total B-6 levels and increases in pyridoxal and 4-pyridoxic acid concentrations.

Statistical Data Included, Usage, Endurance sports, Coenzymes, Gluconeogenesis, High performance liquid chromatography, Vitamin B6, Pyridoxine

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