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. 2021 Oct 5;12:743535. doi: 10.3389/fphys.2021.743535

Table 3.

Anthropometric parameters measured before and after 1month at very high altitude (mean altitude of 4,900±60m).

Anthropometric parameters Before chronic hypoxia
M (±SD) or MD (LQ-HQ)
After chronic hypoxia
M (±SD) or MD (LQ-HQ)
Test p Effect size
BW [kg] 76.9 (65.5–77.3) 71.9 (67.8–78.3) W 0.16 0.19
FAT [%] 14 (±3.1) 11.5 (±3.3) T 0.0001 0.44
FAT [kg] 10.2 (±2.3) 8.1 (±1.8) T 0.0001 0.47
FFM [kg] 65.8 (59.6–66.9) 63.3 (59.2–69.0) W 0.9 0.006
TBW [kg] 48.2 (43.6–49.0) 46.3 (43.3–50.5) W 0.9 0.007
BMI [kg·m−2] 22.8 (±2.1) 22.3 (±1.8) T 0.16 0.09
BMR [kcal] 1,825.5 (1,678–1,883) 1,758.5 (1,656–1,881) W 0.16 0.14
BSA [m2] 1.9 (±0.1) 1.9 (±0.1) T 0.16 0.0001

Data are expressed as means (M)±SD for parametric distribution, medians (MD) with lower quartile (LQ) and upper quartile (HQ) for nonparametric distribution of variables; Statistical tests: t test (T) for variables with parametric distribution; Wilcoxon rank test (W) for variables with nonparametric distribution. Effect size expressed as partial eta2; Body weight (BW); fat mass (FAT); fat-free mass (FFM); total body water (TBW); body mass index (BMI); basic metabolic rate (BMR); and body surface area (BSA).