Rehydration Following Exercise-Induced Dehydration
1 other identifier
interventional
26
1 country
1
Brief Summary
Athletes participating in multiple training sessions a day can be at increased risk of suboptimal hydration and heat illness during their second training session, especially when the environment is hot and humid. With the exception of the absolute volume of water delivered by a rehydration beverage, characteristics of the beverage consumed play a role in the recovery and completeness of rehydration. The amount of sodium in the beverage has been shown to be a primary factor in rehydration. Recently, an effect of the carbohydrate concentration of the beverage was been reported, with its effects mediated by the renal system in response to elevated serum insulin. The purpose of this study is to compare sodium and carbohydrate effects on rehydration and recovery.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Jul 2013
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2013
CompletedFirst Submitted
Initial submission to the registry
October 28, 2013
CompletedFirst Posted
Study publicly available on registry
November 4, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2016
CompletedJune 2, 2016
May 1, 2016
1.8 years
October 28, 2013
May 31, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Rehydration
Fluid retained to rehydrate the body as a percentage of volume of beverage ingested.
8 hours
Secondary Outcomes (1)
Body weight
8 hours
Other Outcomes (1)
Total body water
8 hours
Study Arms (3)
Placebo
PLACEBO COMPARATORWater with flavoring and non-nutritive sweetener.
High-Na low-CHO beverage
EXPERIMENTALBeverage containing sodium concentration of 40 to 50 mEq/L and carbohydrate concentration between 310 and 350 mmol/L.
Low-Na high-CHO beverage
EXPERIMENTALBeverage containing sodium concentration of 15 to 25 mEq/L and carbohydrate concentration between 120 and 160 mmol/L.
Interventions
A volume of fluid (water) was given after exercise to return each subject's body mass (to euhydration).
A volume of fluid (high-Na, low-CHO) was given after exercise to return each subject's body mass (to euhydration).
A volume of fluid (low-Na, high-CHO) was given after exercise to return each subject's body mass (to euhydration).
Eligibility Criteria
You may qualify if:
- Male, age 18-35 y, physically fit, and regularly undergoing exercise training particularly but not exclusively in team sports.
You may not qualify if:
- "Yes" on PAR-Q survey, symptoms or signs of exercise intolerance, VO2 max \<50 mL/kg/min, smoker
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Illinois at Chicagolead
- Abbott Nutritioncollaborator
Study Sites (1)
University of Illinois
Chicago, Illinois, 60608, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Craig Horswill, PhD
UIC
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical Associate Professor
Study Record Dates
First Submitted
October 28, 2013
First Posted
November 4, 2013
Study Start
July 1, 2013
Primary Completion
May 1, 2015
Study Completion
May 1, 2016
Last Updated
June 2, 2016
Record last verified: 2016-05