Is Eliud Kipchoge's second attempt at breaking the two-hour marathon mark a human advance or just a technological sidestep? In October the world's best marathoner will attempt to run inside 120 minutes using every advancement available from carbon-plated shoes to carefully-planned pacing and drafting strategies. Understand how VO2 max, running economy and lactate threshold affect performance, the benefit of wearing Nike's controversial % shoe, the V-shaped pacing strategy and the effect of crowd support.
","author_name":"Professor Ross Tucker and Mike Finch"}