Featured Research

from universities, journals, and other organizations

Why Aerobic Exercise Is Good For The Heart

Date:
March 21, 2007
Source:
Columbia University Medical Center
Summary:
Aerobic exercise is widely recognized to reduce the risk of coronary heart disease, but until now, researchers have not fully understood the biological mechanisms behind the effect of exercise on cardiovascular health. Findings of a new study show how exercise decreases inflammation, which reduces the risk of atherosclerosis -- fatty build-ups in the arteries -- that cause most cases of heart disease.

Aerobic exercise is widely recognized to reduce the risk of coronary heart disease, but until now, researchers have not fully understood the biological mechanisms behind the effect of exercise on cardiovascular health. Findings of a new study show how exercise decreases inflammation, which reduces the risk of atherosclerosis – fatty build-ups in the arteries – that cause most cases of heart disease.

In a study led by Richard P. Sloan, Ph.D., professor of behavioral medicine at Columbia University Medical Center, whole blood samples were taken from 46 healthy young adults (20-45 years old) both before and after participating in moderate or high intensity aerobic exercise, over a 12-week period.

The blood samples were stimulated with the infectious agent lipopolysaccharide (LPS) – gram negative bacteria – and then analyzed for levels of tumor necrosis factor (TNF) – an initial step in the inflammatory cascade. Substantially lower levels of TNF were found after aerobic training, in both the moderate and high intensity groups.

“These findings suggest strongly that exercise reduces the systemic inflammation that can lead to heart disease,” said Dr. Sloan. “This study is especially significant because the value of exercise has never before been shown in TNF, and never in healthy adults who were not at high-risk for heart disease.”

Findings will be presented at the American Psychosomatic Society’s Annual Meeting, March 7-10 in Budapest, Hungary.

“With the learnings gained from these findings, we plan to replicate this work with a larger group of volunteers,” added Dr. Sloan.

In addition to Dr. Sloan, the Columbia researchers involved in this study included Peter A. Shapiro, M.D., Ronald E. DeMeersman, Ph.D., Paula S. McKinley, Ph.D. and Pamela D. Flood, M.D. Kevin Tracey, M.D. of North Shore University Hospital, was also a member of the research team.


Story Source:

The above story is based on materials provided by Columbia University Medical Center. Note: Materials may be edited for content and length.


Cite This Page:

Columbia University Medical Center. "Why Aerobic Exercise Is Good For The Heart." ScienceDaily. ScienceDaily, 21 March 2007. <www.sciencedaily.com/releases/2007/03/070320073101.htm>.
Columbia University Medical Center. (2007, March 21). Why Aerobic Exercise Is Good For The Heart. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2007/03/070320073101.htm
Columbia University Medical Center. "Why Aerobic Exercise Is Good For The Heart." ScienceDaily. www.sciencedaily.com/releases/2007/03/070320073101.htm (accessed October 21, 2014).

Share This



More Health & Medicine News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How Nigeria Beat Its Ebola Outbreak

How Nigeria Beat Its Ebola Outbreak

Newsy (Oct. 20, 2014) The World Health Organization has declared Nigeria free of Ebola. Health experts credit a bit of luck and the government's initial response. Video provided by Newsy
Powered by NewsLook.com
Another Study Suggests Viagra Is Good For The Heart

Another Study Suggests Viagra Is Good For The Heart

Newsy (Oct. 20, 2014) An ingredient in erectile-dysfunction medications such as Viagra could improve heart function. Perhaps not surprising, given Viagra's history. Video provided by Newsy
Powered by NewsLook.com
Ebola Worries End for Dozens on U.S. Watch Lists

Ebola Worries End for Dozens on U.S. Watch Lists

Reuters - US Online Video (Oct. 20, 2014) Forty-three people who had contact with Thomas Eric Duncan, the first person diagnosed with Ebola in the U.S., were cleared overnight of twice-daily monitoring after 21 days of showing no symptoms. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
CDC Calls for New Ebola Safety Guidelines

CDC Calls for New Ebola Safety Guidelines

AP (Oct. 20, 2014) Centers for Disease Control and Prevention Director Dr. Tom Frieden laid out new guidelines for health care workers when dealing with the deadly Ebola virus including new precautions when taking off personal protective equipment. (Oct. 20) 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:

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