Figure 2.

Changes in distance covered (A) and stride kinetics (B, mean vertical force; C, mean horizontal force; D, mean resultant force). Mean ± SD (n = 13). The repeated-sprint exercise protocol included a first set of eight sprints performed at sea level (SL), moderate (MH), or severe hypoxia (SH), while the second set of four sprints was always performed at SL. C, T, and I, respectively refer to ANOVA main effects of condition, time and interaction between these two factors with P-value and partial eta-squared into brackets. ^a, ^b, ^c, and ^d significantly different from sprint 1, 4, 8, and 9, respectively (P < 0.05). ¹ and ² significant different from SL and MH, respectively (P < 0.05).