Table 1 Background characteristics of male Tarahumara runners (n = 10) presented as mean (SD)

Age (years)

29.9

6.6

22–45

Height (cm)

162

0.1

155–177

Weight (kg)

54.2

5.7

46.0–64.6

Body mass index (kg/m²)

21.2

1.7

18.7–24.1

Waist circumference (cm)

76.5

4.5

68.2–83.4

Body fat (%)^a

10.6

1.5

8.0–12.7

Body surface area (m²)

1.22

0.15

1.00–1.47

Systolic blood pressure (mmHg)^b

105

9

96–126

Diastolic blood pressure (mmHg)²

64

7

56–78

Glycated hemoglobin (%)

5.7

0.2

5.3–5.9

Hemoglobin (g/dL)

15.7

1.5

12.4–18.0

Hematocrit (%)

47.2

4.6

37.2–54.0