The purpose of the study is to 1) evaluate incidence and primary cause of exercise-associated Hyponatremia (EAH) in race finishers participating in the Western States 100-mile Endurance Run, 2) determine if the ingestion of oral hypertonic saline (high salt) is as effective as intravenous administration of hypertonic saline to elevate below-normal blood salt concentrations (EAH) at the end of the Western States Endurance Run, and 3) determine if oral and intravenous hypertonic saline solutions are equally as effective at reversing mild (without altered mental status) symptoms associated with EAH.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
100
Intravenous 100mL bolus of 3% saline
Oral 100mL bolus of 3% saline
Western States Endurance Run
Sacramento, California, United States
RECRUITINGBlood sodium concentration post administration of oral or IV hypertonic saline.
Time frame: 1 hour post administration of hypertonic saline
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