Featured Research

from universities, journals, and other organizations

A Serving Of Exercise After That Saturated Fat

Date:
September 1, 2006
Source:
Indiana University
Summary:
Physical activity after a high-fat meal not only reverses the arterial dysfunction caused by fatty foods but improves the function of these same arteries compared to before the meal, according to new research from Indiana University.

Physical activity after a high-fat meal not only reverses the arterial dysfunction caused by fatty foods but improves the function of these same arteries compared to before the meal, according to new research from Indiana University.

Related Articles


The findings, reported in the European Journal of Applied Physiology, are part of a growing focus on the effect food has on the body after the meal -- also known as the postprandial state. After a fatty meal, arteries lose their ability to expand in response to an increase in blood flow, with the effect peaking four to six hours after eating -- just in time for the next meal.

"What happens four hours after that high-fat meal is that your artery looks just like the arteries of a person who has heart disease," said co-author Janet P. Wallace, professor in IU Bloomington's Department of Kinesiology. "What our study showed is that when you exercise after that meal, it doesn't look like a sick artery anymore."

The postprandial state is an important period to study, Wallace said, because of the amount of time people spend in it throughout their day, and its influence on conditions such as diabetes and heart disease. The research examined whether physical activity lessened the well-documented impairment of vascular endothelial function -- the ability of the vessel to expand in response to an increase in blood flow -- after a high-fat meal.

"The impairment of endothelial function after a fatty meal is a key factor in the development of atherosclerotic cardiovascular disease, which is the leading cause of illness and death in Western society," said lead author Jaume Padilla, a doctoral student in IU Bloomington's Department of Kinesiology. "Results from this study suggest that physical activity may be effective in reversing the adverse vascular effects observed following the consumption of a high-fat meal."

Wallace said the oxidation of high-fat meals causes oxidative stress markers that harm the arteries and contribute to such conditions as heart disease, diabetes, Alzheimer's and cancer. Their research shows that physical activity counteracts this oxidative effect. The next step, Wallace said, is to show how.

Eight study subjects, all 25-year-olds who were determined to be physically active and apparently healthy, walked on a treadmill for 45 minutes two hours after eating either a high-fat breakfast (940 calories; 50 percent fat) or a low-fat breakfast of comparable calories. The high-fat breakfast included eggs, sausage and hash browns. It included 48 grams of fat (16.5 grams saturated fat and 4.5 grams trans fat), 33 grams protein, 91 grams carbohydrates, 280 milligrams of cholesterol and 2,220 milligrams of sodium. The low-fat meal included cereal with skim milk and orange juice and amounted to 945 calories. It included no fat, 5 milligrams of cholesterol, 23 grams of protein, 209 grams of carbohydrates and 959 milligrams of sodium.

In their study, Wallace and Padilla tested the brachial artery because it is supposed to mimic the coronary arteries. Wallace said the artery responded better after the physical activity than it did before the high-fat meal. More research should be conducted, she said, involving older populations.

The article, "The effect of acute exercise on endothelial function following a high-fat meal," will appear in a September issue of the journal. Co-authors include Alyce D. Fly, an associate professor in IU Bloomington's Department of Applied Health Science; Ryan A. Harris, a doctoral student in the Department of Kinesiology; and Lawrence D. Rink, clinical professor in IU's School of Medicine. The departments of Kinesiology and Applied Health Science are in the IU Bloomington School of Health, Physical Education and Recreation.


Story Source:

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


Cite This Page:

Indiana University. "A Serving Of Exercise After That Saturated Fat." ScienceDaily. ScienceDaily, 1 September 2006. <www.sciencedaily.com/releases/2006/09/060901192519.htm>.
Indiana University. (2006, September 1). A Serving Of Exercise After That Saturated Fat. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2006/09/060901192519.htm
Indiana University. "A Serving Of Exercise After That Saturated Fat." ScienceDaily. www.sciencedaily.com/releases/2006/09/060901192519.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
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