Featured Research

from universities, journals, and other organizations

Obesity, large waist size risk factors for COPD

Date:
July 7, 2014
Source:
Canadian Medical Association Journal
Summary:
Obesity, especially excessive belly fat, is a risk factor for chronic obstructive pulmonary disease, according to a new article. Excessive belly fat and low physical activity are linked to progression of the disease in people with COPD, but it is not known whether these modifiable factors are linked to new cases.

Obesity, especially excessive belly fat, is a risk factor for chronic obstructive pulmonary disease (COPD), according to an article in CMAJ (Canadian Medical Association Journal)

Excessive belly fat and low physical activity are linked to progression of the disease in people with COPD, but it is not known whether these modifiable factors are linked to new cases.

A team of researchers in Germany and the United States looked at the relationship of waist and hip circumference, body mass index (BMI) and physical activity levels to new cases of COPD in a large group of men and women in the US. They looked at data on 113 279 people between the ages of 50 and 70 years who did not have COPD, cancer or heart disease at the beginning of the study (1995󈟌). During the 10-year follow-up period, COPD developed in 3648 people. People with large waist circumference (110 cm or over in women and 118 cm or over in men) had a 72% increased risk of COPD.

"We observed a stronger positive relation with abdominal body fat than with total body fat and COPD," writes Dr. Gundula Behrens, Department of Epidemiology and Preventive Medicine, University of Regensburg, Regensburg, Germany, with coauthors. "In particular, overweight as measured by BMI emerged as a significant predictor of increased risk of COPD only among those with a large waist circumference."

A large waist was a robust predictor of COPD in smokers as well as in people who had never smoked.

Pollution, smoking and toxic particles in workplace dust are thought to cause COPD through chronic inflammation and impaired ability to heal injury to the lungs. "Increased local, abdominal and overall fat depots increase local and systemic inflammation, thus potentially stimulating COPD-related processes in the lung," write the authors.

People with a large hip circumference and who were physically active at least 5 times a week were 29% less likely to experience COPD. Exercise can reduce inflammation, oxidative stress and enhance healing.

Underweight people had a 56% increased risk of COPD. Possible reasons include malnutrition and reduced muscle mass leading to increased COPD susceptibility and progression through inflammatory processes and impaired lung repair capacity.

"Our findings suggest that next to smoking cessation and the prevention of smoking initiation, meeting guidelines for body weight, body shape and physical activity level may represent important individual and public health opportunities to decrease the risk of COPD. Physicians should encourage their patients to adhere to these guidelines as a means of preventing chronic diseases in general and possibly COPD in particular," conclude the authors.


Story Source:

The above story is based on materials provided by Canadian Medical Association Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. Gundula Behrens, Charles E. Matthews, Steven C. Moore, Albert R. Hollenbeck, Michael F. Leitzmann. Body size and physical activity in relation to incidence of chronic obstructive pulmonary disease. CMAJ, July 2014 DOI: 10.1503/cmaj.140025

Cite This Page:

Canadian Medical Association Journal. "Obesity, large waist size risk factors for COPD." ScienceDaily. ScienceDaily, 7 July 2014. <www.sciencedaily.com/releases/2014/07/140707134316.htm>.
Canadian Medical Association Journal. (2014, July 7). Obesity, large waist size risk factors for COPD. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2014/07/140707134316.htm
Canadian Medical Association Journal. "Obesity, large waist size risk factors for COPD." ScienceDaily. www.sciencedaily.com/releases/2014/07/140707134316.htm (accessed July 29, 2014).

Share This




More Health & Medicine News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Two Americans Contract Ebola in Liberia

Two Americans Contract Ebola in Liberia

Reuters - US Online Video (July 28, 2014) Two American aid workers in Liberia test positive for Ebola while working to combat the deadliest outbreak of the virus ever. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
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