Table 2 Body composition parameters of the runners and control subjects before (Pre) and after (Post) the mountain ultra-marathon
Runners (n = 11) | Control (n = 8) | |||
|---|---|---|---|---|
Pre | Post | Pre | Post | |
Total body hydration-Hyd (% BW) | 60 ± 1 | 66 ± 1*** (+10 %) | 62 ± 1 | 61 ± 1†† (−2 %) |
Total hydration of the non-fat mass-NF-Hyd (% BW) | 72 ± 1 | 80 ± 1*** (+11 %) | 74 ± 2 | 73 ± 2†† (−1 %) |
Total body water (% BW) | 46 ± 1 | 51 ± 1*** (+11 %) | 49 ± 3 | 48 ± 3 (−2 %) |
Extracellular mass (% BW) | 35 ± 1 | 38 ± 1* (+9 %) | 34 ± 1 | 33 ± 1† (−3 %) |
Extracellular water volume-Ve (L) | 21 ± 1 | 24 ± 1*** (+14 %) | 22 ± 1 | 22 ± 1 (0 %) |
Intracellular water volume-Vi (L) | 24 ± 1 | 23 ± 1* (−4 %) | 26 ± 1 | 26 ± 2 (0 %) |
Ve/Vi | 88 ± 2 | 106 ± 6* (+20 %) | 86 ± 2 | 83 ± 1†† (−3 %) |