Fig. 2From: International Society of Sports Nutrition position stand: sodium bicarbonate and exercise performanceIllustration of the contribution of different energy systems to the production of ATP to sustain maximal or near-maximal exercise over a given amount of time. The horizontal gradient-filled bars indicate exercise intensity/duration zones that are more (filled) or less (shaded) likely to result in acidosis and thus benefit from sodium bicarbonate supplementationBack to article page