banner
Health Team

Breathing test can measure calories for weight loss

Posted May 21, 2009

Map Marker  Find News Near Me

— A breathing test can help people learn how many calories they consume each day and form a plan to lose weight.

Breathing can be key to weight loss Breath can be key to weight loss

Many people fail at diets because they don't know how many calories they can consume per day and still lose weight safely.

So when Lisa Smith wanted to lose weight, she turned to registered dietitian Kathy Hefner at the FirstHealth Center for Health and Fitness for help.

Hefner gathered information about Smith's normal activity levels and sleep habits.

She used a breathing device, called the Med Gem, to measure the least number of calories Smith needs each day. The Med Gem measures how much oxygen Smith consumes, which indicates her resting metabolic rate.

"Just like a campfire needs oxygen to burn, our body actually uses oxygen in order to create energy," Hefner said.

A 5- to 10-minute test with the Med Gem, combined with Smith's personal data, yielded a plan for her to lose one to two pounds a week. Under the plan, Smith can consume about 1,450 calories a day.

"It's nice to know what I can eat," Smith said. "She (Hefner) said I can come back for the follow up for the meal plan, so that'll be nice."

The Med Gem provides a more accurate measure than the estimates given by magazines and Web sites. The device gives a user a sense that the calorie limit "is my number. It becomes unique to them," Hefner said. With that knowledge, it's easier to create a personalized meal plan for weight loss.

The Med Gem measures within 40 calories of a much more complex test – in which a person is placed in a small room equipped with devices that measure body heat and oxygen exchange – that is considered the gold standard for the science of calorimetry.

The federal Department of Agriculture's Web site provides another source for a good personalized calorie estimate.

1 Comment

This story is closed for comments. Comments on WRAL.com news stories are accepted and moderated between the hours of 8 a.m. and 8 p.m. Monday through Friday.

Oldest First
View all
  • Frizz May 22, 8:56 a.m.

    I've finally found a diet that works. If something tastes good, spit it out.