The purpose of the present study is to investigate the effect of different rate of fluid consumption on post-exercise rehydration.
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
30
The participants ingested sports drink in a volume equivalent to 150% of BW loss, in 30 min, 60 min, or 90min.
specific gravity of urine(SG)
dehydration: \>= 1.020
Time frame: Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period
Osmolality(Urine)
dehydration: \>= 700 mosm/kg
Time frame: Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period
Osmolality(Blood)
dehydration: \>= 290 mosm/kg
Time frame: Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period
Vasopressin
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.
Time frame: Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period
sodium(blood)
135\~145mEq/L
Time frame: Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period
Body weight change
measure body weight at baseline, dehydration, 1st and 2nd hour in recovery period in kg
Time frame: Change from baseline outcome measure at dehydration and 1st and 2nd hour in recovery period
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