Life Time Fitness, Inc. (NYSE: LTM) today reported its operating results for the first quarter ended March 31, 2008.

First quarter 2008 revenue grew 20.5% to $184.5 million from $153.1 million during the same period last year. Net income during the quarter grew 23.1% to $17.4 million, or $0.44 per diluted share. This compares to net income of $14.1 million, or $0.38 per diluted share, for 1Q 2007.