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CBS 2 - KCAL 9 - Los Angeles - Southern California - LA Breaking News, Weather, Traffic, Sportshttp://cbs2.com/onthesceneen-USMon, 09 Nov 2009 06:22:43 GMT5<![CDATA[Interval Training: When You Need An Energy Burst]]>http://cbs2.com/onthescene/Cardio.Fitness.Training.2.735244.htmlhttp://cbs2.com/onthescene/Cardio.Fitness.Training.2.735244.html]]>Thu, 29 May 2008 02:47:58 GMT