Seifert John, Harmon Joseph, DeClercq Patty
Dept. of Physical Education and Sport Science, Saint Cloud State University, Saint Cloud, MN 56301, USA.
Int J Sport Nutr Exerc Metab. 2006 Aug;16(4):420-9. doi: 10.1123/ijsnem.16.4.420.
The purpose of this study was to compare fluid retention of carbohydrate plus protein, a carbohydrate-only, and water following 2.5% body weight (BW) loss. Thirteen subjects dehydrated to 2.5% of BW, then ingested a CHO (6%) plus protein drink (1.5%; CP), a 6% CHO drink, or water (WA) at a volume equal to BW loss during a 3-h recovery. Fluid retention was significantly greater for CP (88 +/- 4.7%) than CHO (75 +/- 14.6%), which was greater than WA (53 +/- 16.1%). Serum and urine osmolalities were greater for CP (284.7 +/- 5.0; 569.4 +/- 291.4 mOsm/kg) than CHO (282.6 +/- 5.2; 472.9 +/- 291.5 mOsm/kg) which were greater than WA (280.6 +/- 5.9, 303.7 +/- 251.5 mOsm/kg). Results indicate that fluid retention for CP was 15% greater than CHO and 40% greater than WA. Water ingestion led to a dilution of the serum and resulted in only 53% fluid retention.
本研究的目的是比较体重减轻2.5%后，碳水化合物加蛋白质、单纯碳水化合物和水的液体潴留情况。13名受试者脱水至体重的2.5%，然后在3小时的恢复过程中，摄入与体重减轻量相等体积的碳水化合物（6%）加蛋白质饮料（1.5%；CP）、6%的碳水化合物饮料或水（WA）。CP组的液体潴留（88±4.7%）显著高于CHO组（75±14.6%），CHO组高于WA组（53±16.1%）。CP组的血清和尿渗透压（284.7±5.0；569.4±291.4mOsm/kg）高于CHO组（282.6±5.2；472.9±291.5mOsm/kg），CHO组高于WA组（280.6±5.9，303.7±251.5mOsm/kg）。结果表明，CP组的液体潴留比CHO组高15%，比WA组高40%。摄入水导致血清稀释，仅产生53%的液体潴留。
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