Fig. 1.

Overall participant mean changes (±s.e) in body weight, fat mass (FM) and fat free mass (FFM) during the expedition. Data are presented are absolute values (Fig. 1a) and as changes (Δ) relative to baseline measured at sea level (London, Fig. 1b). Linear mixed models for repeated measures were used to analyze whether there were significant changes in body composition during the expedition for both sets of data. Paired t-test was used to test for differences in losses of FM and FFM at each phase (Fig. 1b).