Oct.01, 2009 Health and Fitness Tags : Burn Program, Burning Zone, Cardiovascular Exercise, Energy Expenditure, Energy Metabolism, Energy Sources, Exercise Equipment, Exercise Time, Exercise To Lose Weight, fat burning zone, fat-loss, Fbz, Fitness Professional, Heart Rate, High Intensity, High Intensity Interval Training, Hr Max, Intensity Exercise, Max Hr, personal trainer, Random Programs, Relative Contribution, Walking Speed, Waste Of Time, weight loss Related Posts:Spare Muscle Mass and P