Table 1. Basic anthropometric characteristics for runners.
| Variable (unit) | Derivation group n=1998 | Testing group n=666 | Validation group n=666 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | CI | SD | Mean | CI | SD | Mean | CI | SD | |
| Age (years) | 36.2 | 35.6–36.9 | 8.45 | 35.9 | 35.5–36.3 | 8.05 | 35.5 | 34.9–36.2 | 8.14 |
| Height (cm) | 180.0 | 179.6–180.5 | 6.04 | 179.4 | 179.1–179.7 | 6.13 | 179.7 | 179.2–180.2 | 6.61 |
| BM (kg) | 77.7 | 77.0–78.4 | 9.35 | 77.7 | 77.3–78.1 | 9.29 | 77.9 | 77.1–78.6 | 10.1 |
| BMI (kg·m–2) | 23.9 | 23.8–24.1 | 2.43 | 24.1 | 24.0–24.2 | 2.41 | 24.1 | 23.9–24.3 | 2.56 |
| BF (%) | 15.4 | 15.1–15.7 | 4.55 | 15.5 | 15.3–15.7 | 4.52 | 15.4 | 15.1–15.8 | 4.55 |
| FM (kg) | 12.2 | 11.9–12.6 | 4.68 | 12.3 | 12.1–12.5 | 4.65 | 12.3 | 11.9–12.7 | 4.92 |
| FFM (kg) | 65.5 | 65.0–66.0 | 6.43 | 65.4 | 65.1–65.7 | 6.31 | 65.6 | 65.1–66.1 | 6.86 |
BM, body mass; BMI, body mass index; BF, body fat; FM, fat mass; FFM, fat-free mass; CI, 95% confidence interval; SD, standard deviation.