i have been doing cardio now for the last month trying to cut i do my usual work out about 45minutes one muscle group then do 35 minutes of cardio right after keeping my heart rate at or above 165-175 i burn about 5 to 600 calories in about 35 minutes my question is would i see better results slowing down the heart rate to like 130 or so the fat buring zone they call it .. for 30 to 45 minutes or is it better to have the heart rate up higher