Figure 3. Cycle lengths (means ± SD) employed by our elite male (n = 41) and female (n = 41) skiers on flat, intermediate, uphill and steep uphill terrain during the 15- and 10-km XC distance races, respectively, at the Norwegian Championships in 2016. There was a significant interaction between sex and incline with respect to cycle length and cycle velocity, with more pronounced absolute sex differences on the flat and intermediate inclines than the two steeper uphill sections (p < 0.001). The percentage differences (Δ) are relative to the mean value for the women, designated as 100%.