27 Nov '12, 10pm

Learning how to draft off another runner makes a big difference on race day #runningtips

My column in today's Globe and Mail takes a look at the benefits of drafting for runners and cyclists: [...] The energy you expend to overcome air resistance depends on two factors: how fast you’re moving forward, and how fast the wind is blowing against you. If you double your speed on a still day, you’ll spend eight times more energy fighting air resistance. That’s why drafting will always be more important to cyclists than to slower-moving runners. But no matter how fast you’re going, if the wind speed doubles, then the energy you spend overcoming it will quadruple. For runners like Coolsaet, a Guelph, Ont.-based marathoner, and Chelimo, cruising at just over three minutes per km along the breezy shores of Lake Ontario, this can quickly add up to a significant drain on their efforts. [READ ON... ] The print version of the column was accompanied by some detailed graphics...

Full article: http://www.runnersworld.com/running-tips/drafting-cycling...

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