Featured Research

from universities, journals, and other organizations

Exercise can reduce stroke risk

Date:
July 18, 2013
Source:
University of Alabama at Birmingham
Summary:
A new study is one of the first to study the relationship of exercise and stroke in a large biracial cohort of men and women in the U.S.

A new study from researchers at the University of Alabama at Birmingham (UAB) is one of the first to study the relationship between exercise and stroke in a large biracial cohort of men and women in the United States. The findings are published in the American Heart Association journal Stroke.

Using 27,000 stroke-free blacks and whites ages 45 and older in the United States from the Reasons for Geographic and Racial Differences in Stroke (REGARDS) study cohort, researchers examined the association of self-reported physical activity with incident of stroke.

Participants were classified at baseline as being in active (i.e., no workouts in a typical week), moderately active (workouts one to three times per week) or vigorously active (workouts more than four times per week), and they were followed for an average of 5.7 years.

The results showed that physical inactivity was reported by 33 percent of participants and was associated with a 20 percent increased risk of stroke. Those who reported they exercised at least four times a week were less likely to experience a stroke or mini-stroke. Among men, only those who exercised four or more times a week had a lower stroke risk. Among women, the relationship between stroke and frequency of activity was less clear.

"The protective effect of intense physical activity may be through its impact on traditional risk factors such as hypertension and diabetes," explained Virginia Howard, Ph.D., UAB professor of epidemiology and senior study author.

"These findings confirm past results of studies done in only men or only women in limited geographical areas," Howard said. "By using the REGARDS cohort, our study was able to use a larger and more diverse population to show that participating in regular physical activity is associated with lower stroke risk."

Howard added that stroke is preventable, and physical activity is a major modifiable risk factor for stroke. "This should be emphasized more in routine physician check-ups, along with general education on the proven health benefits of regular physical activity on other stroke-risk factors including high blood pressure, diabetes and obesity," Howard said.

Study limitations highlighted include that the results are based on self-reported levels of physical activity, and self-reported data may not be a reflection of the truth. Also, investigators did not have data on the type or duration of the exercise in which people engaged, nor the number of sessions. Howard suggested future studies should consider different ways to measure physical activity through: use of more questions; devices such as accelerometers and heart monitors that can provide more objective data; and capturing information on other dimensions of physical activity such as frequency, intensity and duration.

This study was supported by the National Institute of Neurological Disorders and Stroke.


Story Source:

The above story is based on materials provided by University of Alabama at Birmingham. The original article was written by Nicole Wyatt. Note: Materials may be edited for content and length.


Journal Reference:

  1. McDonnell M N, Hillier S L, Hooker S P, Le A, Howard V J. Physical Activity. Frequency and Risk of Incident Stroke in a National US Study of Blacks and Whites. Stroke, 2013

Cite This Page:

University of Alabama at Birmingham. "Exercise can reduce stroke risk." ScienceDaily. ScienceDaily, 18 July 2013. <www.sciencedaily.com/releases/2013/07/130718130456.htm>.
University of Alabama at Birmingham. (2013, July 18). Exercise can reduce stroke risk. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2013/07/130718130456.htm
University of Alabama at Birmingham. "Exercise can reduce stroke risk." ScienceDaily. www.sciencedaily.com/releases/2013/07/130718130456.htm (accessed July 22, 2014).

Share This




More Health & Medicine News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Courts Conflicted Over Healthcare Law

Courts Conflicted Over Healthcare Law

AP (July 22, 2014) Two federal appeals courts issued conflicting rulings Tuesday on the legality of the federally-run healthcare exchange that operates in 36 states. (July 22) Video provided by AP
Powered by NewsLook.com
Why Do People Believe We Only Use 10 Percent Of Our Brains?

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Newsy (July 22, 2014) The new sci-fi thriller "Lucy" is making people question whether we really use all our brainpower. But, as scientists have insisted for years, we do. Video provided by Newsy
Powered by NewsLook.com
Scientists Find New Way To Make Human Platelets

Scientists Find New Way To Make Human Platelets

Newsy (July 22, 2014) Boston scientists have discovered a new way to create fully functioning human platelets using a bioreactor and human stem cells. Video provided by Newsy
Powered by NewsLook.com
Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

TheStreet (July 21, 2014) New research shows Gilead Science's drug Sovaldi helps in curing hepatitis C in those who suffer from HIV. In a medical study, the combination of Gilead's Hep C drug with anti-viral drug Ribavirin cured 76% of HIV-positive patients suffering from the most common hepatitis C strain. Hepatitis C and related complications have been a top cause of death in HIV-positive patients. Typical medication used to treat the disease, including interferon proteins, tended to react badly with HIV drugs. However, Sovaldi's %1,000-a-pill price tag could limit the number of patients able to access the treatment. TheStreet's Keris Lahiff reports from New York. Video provided by TheStreet
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