Featured Research

from universities, journals, and other organizations

Exercise, Not Diet, May Be Best Defense Against Heart Disease

Date:
November 5, 2003
Source:
Center For The Advancement Of Health
Summary:
Despite widespread attention to diet, calorie intake may not be a major factor in causing death by heart disease, according to a 17-year study of almost 9,800 Americans. Instead, losing excess weight -- or not becoming overweight to begin with -- and exercising may do more to ward off death from heart disease.

Despite widespread attention to diet, calorie intake may not be a major factor in causing death by heart disease, according to a 17-year study of almost 9,800 Americans.

Instead, losing excess weight -- or not becoming overweight to begin with -- and exercising may do more to ward off death from heart disease, say Jing Fang, M.D., and colleagues from the Albert Einstein College of Medicine in the Bronx, New York.

"The fact is that those who both exercised more and ate more nevertheless had low cardiovascular mortality," says Fang. Expending energy through physical activity may be the key to cutting the risks of heart disease and living a longer, more healthful life, she says.

The study appears in the American Journal of Preventive Medicine.

The researchers studied data from 9,790 participants in the First National Health and Nutrition Examination Survey, a national study from 1971 to 1975 that was funded by the U.S. government. Fang's group compared reports of physical activity, body mass index and dietary caloric intake to deaths from heart disease through 1992.

They grouped participants by their initial reports of caloric intake (low, middle, high), recreation exercise (least, moderate, most) and body mass index (normal, overweight, obese). Body mass index is a measure of weight in relation to height.

Overweight and obese participants, those who consumed fewer calories, and those who exercised less were also likely to be older, black, have a lower family income, less likely to have graduated high school, and more likely to have higher blood pressure and cholesterol levels than those who ate and exercised more.

During 17 years of follow-up, 1,531 participants died of heart disease. After adjusting for BMI and physical activity, caloric intake was unrelated to heart disease. Those who exercised more and ate more were both leaner and had less than half the cardiovascular disease mortality than did those who exercised less, ate less and were overweight.

"Subjects with the lowest caloric intake, least physical activity, and who were overweight or obese had significantly higher cardiovascular mortality rates than those with high caloric intake, most physical activity, and normal weight," Fang says. The difference in mortality rates was 55%.

Those who eat less won't necessarily be thinner, she says, and eating more does not have to translate into obesity. People who were overweight and exercised less at the start faced increased cardiovascular mortality, even if they ate less.

"This suggests that heart disease outcome was not determined by a single factor, but rather by a compound of behavioral, socioeconomic, genetic and clinical characteristics," she says.

A focus on increased energy expenditure rather than reduced caloric intake may be the most practical outcome of this study, she says, and may offer the most productive behavioral strategy by which to extend healthy life.


Story Source:

The above story is based on materials provided by Center For The Advancement Of Health. Note: Materials may be edited for content and length.


Cite This Page:

Center For The Advancement Of Health. "Exercise, Not Diet, May Be Best Defense Against Heart Disease." ScienceDaily. ScienceDaily, 5 November 2003. <www.sciencedaily.com/releases/2003/11/031105064502.htm>.
Center For The Advancement Of Health. (2003, November 5). Exercise, Not Diet, May Be Best Defense Against Heart Disease. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2003/11/031105064502.htm
Center For The Advancement Of Health. "Exercise, Not Diet, May Be Best Defense Against Heart Disease." ScienceDaily. www.sciencedaily.com/releases/2003/11/031105064502.htm (accessed October 23, 2014).

Share This



More Health & Medicine News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) Is your child ready? Video provided by Working Mother
Powered by NewsLook.com
U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

Newsy (Oct. 22, 2014) Now that the U.S. is restricting travel from West Africa, some are dropping questions about a travel ban and instead asking about visa bans. Video provided by Newsy
Powered by NewsLook.com
US to Track Everyone Coming from Ebola Nations

US to Track Everyone Coming from Ebola Nations

AP (Oct. 22, 2014) Stepping up their vigilance against Ebola, federal authorities said Wednesday that everyone traveling into the US from Ebola-stricken nations will be monitored for symptoms for 21 days. (Oct. 22) Video provided by AP
Powered by NewsLook.com
Doctors Help Paralysed Man Walk Again, Patient in Disbelief

Doctors Help Paralysed Man Walk Again, Patient in Disbelief

AFP (Oct. 22, 2014) Polish doctors describe how they helped a paralysed man walk again, with the patient in disbelief at the return of sensation to his legs. Duration: 1:04 Video provided by AFP
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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