Inaddition ,evidence of improved energy coupling came from elevated leg power output per unit VO2 at the aerobic capacity [1(Pmax/1VO2m−r); P =0.02] and during submaximal exercise in the ramp test as measured by delta efficiency (1Pex/1VO2 ; P =0.04). No change was found in blood lactate, muscle glycolysis or fibre type.