Video: Winter games without snow

How do you train year-round for sports that evolved in winter's chill? Indoor skating rinks are obvious, so are refrigerated bobsled runs. But what does a ski-jumper land on? How do cross-country skiers stay in shape? And why do some winter athletes require an outdoor – and unheated – swimming pool? Watch US athletes in Lake Placid, N.Y., prepare for the 2010 Winter Games.

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