Rehydration After Exercise With High-electrolyte Sport Drink
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Arizona State University
- Enrollment
- 12
- Locations
- 1
- Primary Endpoint
- Net Fluid Balance
Study Overview
Brief Summary
It is well established that post-exercise rehydration with a carbohydrate-electrolyte solution is better when compared to plain water. However, most of the commercially available drinks today are high in carbohydrates and sodium with low potassium without other active ingredients. The aim of the present study is to examine the impact of a higher electrolyte sports drink compared with traditional sports drinks and water on the time course and extent of rehydration after exercise-induced dehydration
Detailed Description
Dehydration:
Based on our previous work, dehydration will be accomplished on the morning of testing via mild exercise and heat exposure to elicit a body weight loss of -2%. The subjects will perform four bouts of 25-min low-intensity exercise and 5 min rest (alternating cycling & walking) or till they reach -2% of body weight dehydration.
Rehydration:
Following a 20 min rest in thermo-comfortable environment a dehydrated baseline blood sample will be taken, and subject will start the rehydration protocol.
The volunteers will consume one of the four drinks below in a cross over balance mode. During the first hour four equal doses will be consumed in15-min intervals at a total volume of 150% of their body weight loss.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Crossover
- Primary Purpose
- Other
- Masking
- Single (Participant)
Masking Description
Unidentified bottles.
Eligibility Criteria
- Ages
- 18 Years to 55 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Training > 2x per week
- •Age 18-55 y
- •stable weight for the last 2 months (<5 lbs. fluctuation)
Exclusion Criteria
- •night shifting work
- •thyroid medication
- •bariatric surgery
- •cardiovascular disease
- •renal disease
- •hepatic disease
- •Participating in another study at the same time
- •Bodyweight <110 lbs.
Arms & Interventions
GoodSport
Rehydration with Good Sport drink
Intervention: GoodSport (Other)
Gatorade
rehydration with Gatorade drink
Intervention: Gatorade (Other)
BodyArmor
Rehydration with Body Armor Drink
Intervention: BodyArmor (Other)
Water
rehydration with Plain water
Intervention: Water (Other)
Outcomes
Primary Outcomes
Net Fluid Balance
Time Frame: 4 hours of rehydration
Net fluid balance based on body weight changes during the 4 h of the rehydration period
Urine volume
Time Frame: 3 hours of rehydration
cumulative Urine output during the rehydration period
Urine osmotic excretion
Time Frame: 4 hours of rehydration
Urine osmotic excretion during rehydration
Net Fluid Balance
Time Frame: 3 hours of rehydration
Net fluid balance based on body weight changes during the 4 h of the rehydration period
Urine osmotic excretion
Time Frame: 3 hours of rehydration
Urine osmotic excretion during rehydration
Secondary Outcomes
- Thirst(4 hours of rehydration)
- Stomach fullness(4 hours of rehydration)
- Stomach fullness(3 hours of rehydration)
- Thirst(3 hours of rehydration)