compromising your performance. Jon Alexander explored these matters while he was training for Challenge Barcelona in 2009. His plan was to race while trying to minimise his carbon footprint. He says there are three main issues: kit, diet and transport. Where
of the participants running a 62-mile race consumed 14,000 millilitres of liquid; another who ran only 26 miles, drank only 280 millilitres. The latter runner, not surprisingly, showed the most loss of vascular fluid, resulting in thickened blood plasma and impaired
