For bout 1 , endurance time was shorter in hypobaria ( 26 + / - 3 min ) than normoxia ( 34 + / - 2 min ) ( P < 0.01 ) , but did not differ between Cr ( 27 + / - 3 min ) and Pla ( 33 + / - 3 min ) ( P > 0.05 ) .
