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Table 1 Baseline characteristics, performance data, clinical chemistry and nutrition data of 23 trained men 1

From: Probiotic supplementation affects markers of intestinal barrier, oxidation, and inflammation in trained men; a randomized, double-blinded, placebo-controlled trial

Variable Reference range2,3 Probiotics (n = 11) Placebo (n = 12)
Age, yr   37.6 ± 4.7 38.2 ± 4.4
BMI, kg . m-2   23.7 ± 2.2 23.9 ± 3.1
Weight, kg   80.2 ± 7.9 81.6 ± 6.3
Total body fat, %   14.2 ± 3.1 14.4 ± 3.5
VO2max, mL   4118 ± 172 4087 ± 169
VO2max, mL . kg-1 . min-1   51.2 ± 4.1 50.3 ± 3.6
Pmax, W   367 ± 28 357 ± 32
Prel, W . kg-1   4.53 ± 0.55 4.38 ± 0.62
Clinical Chemistry:
Glucose, mmol . L-1 3.9–6.1 4.5 ± 0.5 4.7 ± 0.4
Hemoglobin, g . L-1 136–172 153 ± 12 155 ± 19
Iron, μmol . L-1 14–32 20.4 ± 4.5 18.6 ± 3.9
Ferritin, μg . L-1 18–300 101 ± 42 89 ± 36
Cholesterol, mmol . L-1 < 5.85 4.47 ± 1.23 4.56 ± 1.13
HDL, mmol . L-1 0.80–1.80 1.30 ± 0.13 1.33 ± 0.19
Triglycerides, mmol . L-1 < 1.80 0.87 ± 0.32 0.81 ± 0.36
Vitamin D3, nmol . L-1 75–250 98 ± 26 106 ± 31
Testosterone, nmol . L-1 10–31 16.3 ± 4.9 18.2 ± 4.1
Creatinine, μmol . L-1 50–110 87 ± 13 93 ± 19
Diet (exerpts):
Energy, kJ . d-1 11776–13902 11989 ± 1803 12356 ± 2455
Fat, % < 30% of kJ d-1 34.5 ± 6.2% 35.9 ± 5.1%
Protein, % 10–15% of kJ d-1 14.7 ± 2.1% 15.8 ± 3.2%
Carbohydrates, % > 50% of kJ d-1 47.9 ± 9.1% 46.5 ± 10.3%
Alcohol, % < 3.5% 1.9 ± 1.2% 1.5 ± 0.9%
Water, mL 2600 3162 ± 595 3022 ± 952
Fibres, g 30 23 ± 7 21 ± 6
Vitamin C, mg 72–106 113 ± 58 118 ± 66
Vitamin E, mg 14 12 ± 5 15 ± 9
ß-Carotene, mg 4 3.1 ± 2.5 3.2 ± 2.7
Folate, μg 434–505 281 ± 155 244 ± 165
Vitamin B-6, mg 3.2–3.8 5.3 ± 2.9 5.1 ± 2.8
Vitamin B-12, μg 3.3–3.7 5.0 ± 2.8 5.8 ± 1.4
Sodium, mg > 646 2610 ± 685 2446 ± 770
Potassium, mg 2171–2523 3162 ± 904 3406 ± 1251
Magnesium, mg 185–361 412 ± 134 444 ± 119
Calcium, mg 1085–1261 1108 ± 395 998 ± 327
Iron, mg 10.9–12.5 13.3 ± 4.6 14.5 ± 6.2
  1. 1Values are means ± SD, and did not differ between the groups (P > 0.05, Student’s t-test); 2Reference range for clinical chemistry parameters [26]; 3Reference values for dietary intake (RDA) in Germany, Austria, Switzerland [27], ranges presented here apply to physical active people; VO2max = maximum oxygen uptake, Pmax = maximum performance, Prel = Performance related to body weight.