Table 1 Characteristics of endurance athletes and controls.

From: Plasma lipocalin-2/NGAL is stable over 12 weeks and is not modulated by exercise or dieting

Variable

Controls (n = 48)

Endurance athletes (n = 52)

P value

Men/women (n)

34/14

41/11

0.36

Age (years)

30.5 ± 11.3

33.4 ± 11.1

0.19

BMI (kg/m2)

25.9 ± 2.8

22.6 ± 2.3

< 0.001

SBP (mmHg)

125.6 ± 10.0

122.6 ± 9.6

0.130

DBP (mmHg)

76.1 ± 8.8

72.2 ± 7.2

0.018

MAP (mmHg)

92.4 ± 8.3

88.9 ± 7.3

0.030

Central SBP (mmHg)

109.7 ± 9.1

105.0 ± 9.7

0.016

Central DBP (mmHg)

77.1 ± 8.7

72.6 ± 7.3

0.007

Central MAP (mmHg)

87.7 ± 8.8

84.8 ± 7.8

0.089

Resting HR (beats min−1)

68 ± 10.5

52 ± 7.8

< 0.001

\(\dot{V}\)O2peak (ml kg−1 min−1)

42.6 ± 7.1

58.0 ± 8.8

< 0.001

  1. Data are expressed as mean ± standard deviation from two-tailed independent samples t-tests or Mann–Whitney U-tests, with P-values below 0.05 bolded. Variances were equal between groups for all variables except for resting HR.
  2. BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; HR, resting heart rate; \(\dot{V}\)O2peak, maximal aerobic (cardiorespiratory) fitness.
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