Figure 1. Percentage change (Δ) in mean power output (MPO) (a) and in peak power output (PPO) (b), during a 3 x 6 x 4 s cycle repeat-sprint ability (RSA) test after the 5 week intervention period. Mean sprint times (s) in a 3 x 6 x 20 m running RSA test (c) and number of shuttles completed in a 20 m shuttle run test (d), before and after the 5 week intervention period. Mean ± 95% CI. * Significant improvement within hypoxia after training (p ≤ 0.05). † Significant improvement within sea-level after training (p ≤ 0.05). ‡ Significant difference between sea-level and control after training (p ≤ 0.05).