Table 1. Mean (with 95% confidence intervals) blood lactate concentration (BLa), heart rate (HR) and rating of perceived exertion (RPE) from a 3 x 6 x 20 m running- and a 3 x 6 x 4 s cycling-repeat sprint ability test recorded in male team sport athletes before and after a 5 week top-up training period in normoxia or hypoxia. GROUP MODE BLa (mmol/L) HR (bpm) RPE (6-20) Pre Set 1 Set 2 Set 3 Set 1 Set 2 Set 3 Set 1 Set 2 Set 3 CONTROL (n=9) RUN Pre Mean 1.6 6.3 8.4 8.9 179 186 186 14 15 16 95% CI [1.3,1.9] [4.8,7.8] [6.4,10.4] [6.7,11.1] [174,184] [179,193] [181,191] [13,15] [14,16] [15,17] Post Mean 1.1 5.5 7.1 8.1 171 179 186 14 15 17 95% CI [0.8,1.4] [4.5,6.5] [5.7,8.5] [6.5,9.7] [161,181] [172,186] [180,192] [12,16] [14,16] [16,18] CYCLE Pre Mean 1.0 5.3 7.2 8.3 164 169 175 14 15 17 95% CI [0.7,1.3] [4.2,6.4] [5.8,8.6] [6.7,9.9] [154,174] [159,179] [165,185] [13,15] [14,16] [16,18] Post Mean 1.1 5.5 7.4 7.6 158 164 167 15 16 17 95% CI [0.8,1.4] [4.5,6.5] [5.8,9.0] [5.9,9.3] [149,167] [154,174] [158,176] [14,16] [15,17] [16,18] NORMOXIA (n=10) RUN Pre Mean 1.9 7.9 9.5 10.2 176 181 190 14 15 17 95% CI [1.5,2.3] [6.2,9.6] [7.9,11.1] [8.5,11.9] [171,181] [176,186] [187,193] [13,15] [14,16] [16,18] Post Mean 1.5 6.5 8.7 9.7 173 181 184 14 16 17 95% CI [1.1,1.9] [5.6,7.4] [7.3,10.1] [8.3,11.1] [167,179] [177,185] [180,188] [13,15] [15,17] [15,19] CYCLE Pre Mean 1.7 7.0 8.6 9.4 166 173 175 13 15 16 95% CI [1.2,2.2] [6.1,7.9] [7.2,10.0] [8.1,10.7] [160,172] [168,178] [170,180] [12,14] [14,16] [15,17] Post Mean 1.3 6.5 8.3 9.2 158 165 168 13 14 16 95% CI [1.1,1.5] [5.3,7.7] [6.7,9.9] [7.8,10.6] [153,163] [160,170] [164,172] [11,15] [13,15] [15,17] HYPOXIA (n=9) RUN Pre Mean 1.7 6.9 9.1 9.9 178 179 180 14 15 16 95% CI [1.4,2.0] [5.7,8.1] [7.2,11.0] [7.9,11.9] [172,184] [174,184] [177,183] [13,15] [14,16] [15,17] Post Mean 1.2 6.3 8.8 9.7 172 179 189 14 16 17 95% CI [0.9,1.5] [5.4,7.2] [7.7,9.9] [8.2,11.2] [164,180] [175,183] [182,196] [13,15] [15,17] [16,18] CYCLE Pre Mean 1.4 6.3 9.3 10.3 163 171 174 14 15 17 95% CI [1.0,1.8] [5.4,7.2] [7.9,10.7] [8.9,11.7] [158,168] [166,176] [168,180] [13,15] [14,16] [16,18] Post Mean 1.0 5.9 9.2 10.6 157 165 168 15 16 17 95% CI [0.7,1.3] [4.9,6.9] [7.4,11.0] [9.2,12.0] [152,162] [159,171] [163,173] [13,17] [15,17] [16,18]