Featured Research

from universities, journals, and other organizations

Pocket-sized sensor gives instant fat burning updates

Date:
July 24, 2013
Source:
Institute of Physics (IOP)
Summary:
Fitness fanatics may soon be able to gauge if their hard work is paying off without the need for weighing scales thanks to a new device that can instantly tell if your body is burning fat. The portable, pocket-sized sensor, produced by a group of researchers in Japan, works by measuring increased levels of acetone on the breath - a good indicator of when the body has begun to break down fat.

The portable, pocket-sized sensor, produced by a group of researchers in Japan, works by measuring increased levels of acetone on the breath – a good indicator of when the body has begun to break down fat.
Credit: Image courtesy of Institute of Physics (IOP)

Fitness fanatics may soon be able to gauge if their hard work is paying off without the need for weighing scales thanks to a new device that can instantly tell if your body is burning fat.

The device has been presented today, 25 July, in IOP Publishing's Journal of Breath Research.

Acetone is primarily produced in the blood when fat is broken down; however, it is also expelled through tiny sacs, called alveoli, in the lungs during exhalation and is therefore present in exhaled breath.

This new device, which is capable of detecting acetone concentrations in the range of 0.2 to 50 parts-per-million, is just 10 cm long, weighs 125 g and requires two AA batteries to operate.

Developed by a group of researchers from NTT DOCOMO Research Laboratories, the device consists of a pressure sensor to detect the exhaled breath and two types of semiconductor-based gas sensors to detect acetone.

After a user blows into the device, the acetone concentration levels can be calculated and sent to a smartphone, either by Bluetooth or a cable, within 10 seconds.

In their study, the researchers recruited 17 healthy adult volunteers (11 men and six women), whose body mass indexes (BMIs) were above the Japanese standard, to test the device.

The volunteers were split into three groups, the first of which carried on with their normal life and were not restricted to a specific numbers of calories in their diet and not required to take part in exercise.

The second group were required to take part in light exercise, such as jogging or fast walking, for 30-60 minutes a day and the final group were required to take part in the same exercise routine and also consume a limited number of calories in their diet each day.

The experiment lasted 14 days and on each day before breakfast, the volunteers were required to measure their body weight, body fat percentage and breath acetone concentrations using the portable device and a standard instrument for comparison.

Results showed that the volunteers in the first two groups -- those leading a normal life and those performing daily exercise -- were not able to lose significant amounts of fat. Their breath acetone concentrations also remained constant.

The volunteers in the third group who followed the exercise regime and had their calorific intake restricted were able to lose significant amounts of fat and their breath acetone concentrations were increased significantly.

Principal investigator of the study, Satoshi Hiyama, said: "Because obesity increases the risk of lifestyle-related illnesses, enabling users to monitor the state of fat burning could play a pivotal role in daily diet management. Current standard methods, however, are still not practically suitable for point-of-care instrumentation for diet-conscious people who wish to monitor their own fat metabolism at home or outside"

"Considering that the effect of dieting could be estimated from changes in breath acetone concentrations, we've shown that our prototype is a practical and alternative checker that can be used in individual dieting programmes."

"It is also known that when diabetes is out of control, patients have elevated levels of breath acetone. It is possible that our prototype could be used to assess how diabetic control is being managed at home."


Story Source:

The above story is based on materials provided by Institute of Physics (IOP). Note: Materials may be edited for content and length.


Journal Reference:

  1. Tsuguyoshi Toyooka, Satoshi Hiyama, Yuki Yamada. A prototype portable breath acetone analyzer for monitoring fat loss. Journal of Breath Research, 2013; 7 (3): 036005 DOI: 10.1088/1752-7155/7/3/036005

Cite This Page:

Institute of Physics (IOP). "Pocket-sized sensor gives instant fat burning updates." ScienceDaily. ScienceDaily, 24 July 2013. <www.sciencedaily.com/releases/2013/07/130724200213.htm>.
Institute of Physics (IOP). (2013, July 24). Pocket-sized sensor gives instant fat burning updates. ScienceDaily. Retrieved August 22, 2014 from www.sciencedaily.com/releases/2013/07/130724200213.htm
Institute of Physics (IOP). "Pocket-sized sensor gives instant fat burning updates." ScienceDaily. www.sciencedaily.com/releases/2013/07/130724200213.htm (accessed August 22, 2014).

Share This




More Health & Medicine News

Friday, August 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Drug Used To Treat 'Ebola's Cousin' Shows Promise

Drug Used To Treat 'Ebola's Cousin' Shows Promise

Newsy (Aug. 21, 2014) An experimental drug used to treat Marburg virus in rhesus monkeys could give new insight into a similar treatment for Ebola. Video provided by Newsy
Powered by NewsLook.com
Two US Ebola Patients Leave Hospital Free of the Disease

Two US Ebola Patients Leave Hospital Free of the Disease

AFP (Aug. 21, 2014) Two American missionaries who were sickened with Ebola while working in Liberia and were treated with an experimental drug are doing better and have left the hospital, doctors say on August 21, 2014. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com
Cadavers, a Teen, and a Medical School Dream

Cadavers, a Teen, and a Medical School Dream

AP (Aug. 21, 2014) Contains graphic content. He's only 17. But Johntrell Bowles has wanted to be a doctor from a young age, despite the odds against him. He was recently the youngest participant in a cadaver program at the Indiana University NW medical school. (Aug. 21) Video provided by AP
Powered by NewsLook.com
American Ebola Patients Released: What Cured Them?

American Ebola Patients Released: What Cured Them?

Newsy (Aug. 21, 2014) It's unclear whether the American Ebola patients' recoveries can be attributed to an experimental drug or early detection and good medical care. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins