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Table 3 Body composition, hematologic and serum parameters through the whole protocol

From: Effects of a moderate intake of beer on markers of hydration after exercise in the heat: a crossover study

  Pre-exercise Post-exercise   Post-rehydration p-valuea
Weight (kg) 74.2 ± 6.5 72.4 ± 6.3d Water 73.5 ± 6.5gj p = 0.23
74.3 ± 6.8 72.6 ± 6.7d Beer + water 73.6 ± 6.9gj
Fat free mass (DXA) (kg) 57.9 ± 4.5 56.6 ± 4.5d Water 57.4 ± 4.6g p = 0.40
58.1 ± 4.9 56.9 ± 4.7d Beer + water 57.5 ± 4.5g
Fat mass (DXA) (kg) 10.5 ± 3.8 10.0 ± 3.6 Water 10.3 ± 3.6 p = 0.32
10.5 ± 3.7 10.0 ± 3.3 Beer + water 10.1 ± 3.7
Hematocrit (%) 45.7 ± 3.0 46.6 ± 2.5 Water 45.5 ± 2.3 p = 0.45
45.1 ± 2.9 45.6 ± 2.2 Beer + water 45.0 ± 2.1
Plasma volume changes (%)   −5.3 (−8.3;−0.1)b Water 3.5 (0.9;9.3) p = 0.44
  −5.1 (−5.7; 0.7)b Beer + water 3.3 (0.5;7.9)
MCV (fL) 87.7 ± 3.0 87.4 ± 2.8b Water 87.5 ± 3.0 p = 0.40
88.1 ± 3.4 87.8 ± 3.4c Beer + water 87.7 ± 3.5
Iron (g/dL) 95.7 ± 27.3 125.0 ± 31.6d Water 122.9 ± 29.9 p = 0.43
92.6 ± 32.0 114.6 ± 32.5b Beer + water 108.0 ± 30.5
Urea (mg/dL) 40 ± 6 47 ± 6d Water 44 ± 4fi p = 0.09
39 ± 8 45 ± 7d Beer + water 40 ± 8g
Creatinine (mg/dL) 1.2 ± 0.1 1.3 ± 0.1d Water 1.2 ± 0.1g p = 0.25
1.2 ± 0.1 1.3 ± 0.1d Beer + water 1.2 ± 0.1e
Sodium (mEq/L) 138 ± 2 138 ± 2 Water 137 ± 3 p = 0.95
138 ± 2 139 ± 3 Beer + water 137 ± 2
Potassium (mEq/L) 4.6 ± 0.4 4.7 ± 0.4 Water 4.2 ± 0.4gi p = 0.28
4.7 ± 0.4 4.7 ± 0.3 Beer + water 4.3 ± 0.3gh
  1. adifferences between rehydration strategies
  2. Post- vs Pre-exercise b p ≤ 0.05; c p ≤ 0.01; d p ≤ 0.001. Post-rehydration vs Post-exercise e p ≤ 0.05; f p ≤ 0.01; g p ≤ 0.001. Post-rehydration vs Pre-exercise h p ≤ 0.05; i p ≤ 0.001
  3. DXA dual energy X-ray absorptiometry, MCV mean corpuscular volume