torsdag 29 september 2011

maratonträning

Även om den här artikeln publicerats på en reklamsite för Hornet Juice (en proteindryck som ska hjälpa kroppen att bränna fett tidigare under ett långt lopp), så är den intressant. Speciellt den här kommentaren:

Writing in the online journal Peak Performance, [Tim] Noakes has pointed to a host of other evidence that glycogen depletion has had a bum rap. In one study, athletes were driven to the point of exhaustion after four hours. Their muscle glycogen concentrations and carbohydrate burn rates were the same as at three hours. "The tradition in the science is, you hit the wall when you run out of muscle glycogen," says Benardot. But he maintains that the carbs stored in the muscles and bloodstream, along with the energy coming from fat, should supply the 100 extra calories per mile that a runner needs and then some, provided he stays aerobic. "When you do the math, there should be plenty of glycogen left in those muscles," Benardot says.

Problemet sitter alltså i hjärnan, inte i musklerna. Det är det som Geoff Roes talar om i videon i slutet på det här inlägget när han säger att man som ultralöpare måste mentalt jobba med "the low points".

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