Intravenous versus oral rehydration during a brief period: stress hormone responses to subsequent exhaustive exercise in the heat

Article Abstract:

This article compares the effects of intravenous and oral rehydration on plasma concentrations of stress hormones in trained athletes during exhaustive cycling tests in high temperature conditions. Findings indicate that there were no significant differences in athletic performance or endocrine response between subjects who received oral and intravenous rehydration therapy.

Measurement, Body temperature, Body temperature regulation, Hydrocortisone, Athletes, Oral rehydration therapy, ACTH, Corticotropin

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Blood glucose responses to carbohydrate feeding prior to exercise in heat: effects of hypohydration and rehydration

Article Abstract:

This article examines the effects of carbohydrate ingestion before exercise tests in heat on hormonal responses and plasma glucose levels in hypohydrated and partially rehydrated subjects. Findings indicate that hypohydration results in prolonged elevation of blood glucose concentrations and increased levels of plasma norepinephrine when compared to partial hydration.

Research, Usage, Carbohydrates, Insulin, Carbohydrates in the body

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Urinary indices during dehydration, exercise, and rehydration

Article Abstract:

Urinary indices were established for bodily hydration status through studies involving dehydration, exhaustion and rehydration cycles. Male athletes underwent 42 hours of dehydration, heavy exercise and oral rehydration. Findings showed that urinary color is the most effective indicator of hydration status, followed by osmolality and specific gravity. These indices are more accurate than urine volume, plasma total protein and plasma sodium.

Analysis, Urine, Urinalysis

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