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, Body mass (kg) 75.4 ± 3, pp.61-63

, Body mass index (kg.m -2 ) 24

. Peak-power and . Output,

, Power at VT1 (W) 212

, Power at VT2 (W) 331

, Values are means ± SD VT1 and VT2, 1 st and 2 nd ventilatory threshold 13

, Table 2 Mean ± SD values for parameters measured during the six sessions (S1 to S6) of the simulated BMX competition

, Blood Lactate

, rest post 5min post 25min post 5min post 25min post 5min post 25min Base excess *$ * Significantly different from rest, $ significantly different from the first race (p<.05)