Sodium Replacement and Plasma Sodium Drop During Exercise in the Heat When Fluid Intake Matches Fluid Loss
نویسندگان
چکیده
منابع مشابه
Sodium-free fluid ingestion decreases plasma sodium during exercise in the heat.
This study assessed whether replacing sweat losses with sodium-free fluid can lower the plasma sodium concentration and thereby precipitate the development of hyponatremia. Ten male endurance athletes participated in one 1-h exercise pretrial to estimate fluid needs and two 3-h experimental trials on a cycle ergometer at 55% of maximum O2 consumption at 34 degrees C and 65% relative humidity. I...
متن کاملFluid and fuel intake during exercise.
The amounts of water, carbohydrate and salt that athletes are advised to ingest during exercise are based upon their effectiveness in attenuating both fatigue as well as illness due to hyperthermia, dehydration or hyperhydration. When possible, fluid should be ingested at rates that most closely match sweating rate. When that is not possible or practical or sufficiently ergogenic, some athletes...
متن کاملHidden sources of fluid and sodium intake in ill newborns.
Fluids used for flushing arterial catheters, bronchial lavage, and drug administration are not normally considered when assessing daily fluid intake, yet infants weighing less than 1000 g at birth gained up to 12 ml/kg/day of extra fluid and 2.4 mmol/kg/day (mean) of extra sodium from these hidden sources.
متن کاملThe exchange of sodium between plasma and cerebrospinal fluid.
This study is concerned with the mechanism of exchange of sodium between plasma and cerebrospinal fluid (CSF). Several workers (1, 2) have reported that there is no significant difference between the concentration of sodium in plasma and CSF. Merritt and Fremont-Smith (3) reported that the average concentration of sodium in CSF, in man, exceeded the plasma concentration by about four mEq. Davso...
متن کاملSweat rate and sodium loss during work in the heat
OBJECTIVE Significant and poorly documented electrolyte losses result from prolonged sweating. This study aimed to quantify likely sodium losses during work in heat. METHODS Male subjects exercised in an environmental chamber on two consecutive days in both winter and summer. Sweat collecting devices were attached to the upper arms and legs. RESULTS Sweat rates were higher and sodium concen...
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ژورنال
عنوان ژورنال: Journal of Athletic Training
سال: 2009
ISSN: 1062-6050
DOI: 10.4085/1062-6050-44.2.117