I don't pay a lot of attention to the "fat %" of calories burned but rather the total calories burned. The theory is that more of the calories you burn are from fat (rather than glucose) when you work out at a lower intensity than a higher intensity, but overall you'll burn more calories total working out at a higher intensity. Hope that helps a little; I'd do some searching on the site for your particular HRM to see what those numbers really mean.
Denise (Half Fanatic #1279) - PDT Time Zone
"The greatest pleasure in life is doing what people say you cannot do." - William Bagshot
Body Bugg & Body Media GoWear Fit Co-Leader
112 Maintenance Weeks
Fitness Minutes: (25,553) Posts: 4,290 4/5/12 1:01 P
SparkPeople, SparkCoach, SparkPages, SparkPoints, SparkDiet, SparkAmerica, SparkRecipes, DailySpark, and other marks are trademarks of SparkPeople, Inc. All Rights Reserved.
SPARKPEOPLE is a registered trademark of SparkPeople, Inc. in the United States, European Union, Canada, and Australia. All rights reserved.