Nitrate supplementation improved exercise tolerance during exercise at 60 % ( BR , 696 120 vs PL , 593 68 s ; P < 0.05 ) , 70 % ( BR , 452 106 vs PL , 390 86 s ; P < 0.05 ) , and 80 % ( BR , 294 50 vs PL , 263 50 s ; P < 0.05 ) but not 100 % peak power ( BR , 182 37 vs PL , 166 26 s ; P = 0.10 ) .
