Dehydration
Conditions
Keywords
sports nutrition, dehydration, sports medicine, rehydration, ingestion rate
Brief summary
The purpose of the present study is to investigate the effect of different rate of fluid consumption on post-exercise rehydration.
Detailed description
The body water deficits equivalent to 2% body mass might impair performance. Due to high exercise intensity, thermal environment, or rule limitation, athletes often in dehydration status post-exercise. Thus, how to rehydrate effectively to prepare the next game is important. The participants arrived to the lab euhydrated and were dehydrated to 2% of body weight by running. After a rest, they will ingest sports drink in a volume equivalent to 150% of BW loss in 30 min, 60 min, or 90 min. Urine and blood sample will be collected to evaluate hydration status.
Interventions
PROCEDUREDifferent Fluid Ingestion Rate
The participants ingested sports drink in a volume equivalent to 150% of BW loss, in 30 min, 60 min, or 90min.
Sponsors
Kaohsiung Medical University
Kaohsiung Veterans General Hospital.
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
MALE
Age
20 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* 20\ 35 years old male * Exercise 150 min per week * Without chronic disease or gastrointestinal surgery
Exclusion criteria
* Injury * Answer Yes in part 1 of the Physical Activity Readiness Questionnaire(PAR-Q+) * Participate in other studies within one month
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| specific gravity of urine(SG) | Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period | dehydration: \>= 1.020 |
| Osmolality(Urine) | Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period | dehydration: \>= 700 mosm/kg |
| Osmolality(Blood) | Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period | dehydration: \>= 290 mosm/kg |
| Vasopressin | Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period | Vasopressin, also called antidiuretic hormone (ADH), arginine vasopressin (AVP) or argipressin, is a hormone synthesized as a peptide prohormone in neurons in the hypothalamus, and is converted to AVP. Increasing the water reabsorption and excretion of more concentrated urine. |
| sodium(blood) | Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period | 135\ 145mEq/L |
| Body weight change | Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period | measure body weight at baseline, dehydration, 1st and 2nd hour in recovery period in kg |
Contacts
Primary ContactJIAN-YU LIN
Outcome results
None listed