'When buying an aerobic fitness machine, make sure the equipment has a good warranty, is easy to clean and comes with a kill switch that will power down the machine. Learn to buy aerobic fitness machines with expert tips an athletic trainer in this free physical fitness video.  Expert: Les Whitley Contact: www.velocitysp.com/coolsprings Bio: Les Whitley is director of Velocity Sports Performance in Franklin, Tennessee. He has a degree in exercise science. Filmmaker: Tim Brown' 

Tags: fitness , exercises , strength training , cardio workouts , weight lifting , gym equipment

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