Featured Research

from universities, journals, and other organizations

Inactive Kids Face 6-fold Risk Of Heart Disease By Teen Years, Study Finds

Date:
April 8, 2008
Source:
University of North Carolina at Chapel Hill
Summary:
Young children who lead inactive lifestyles are five-to-six times more likely to be at serious risk of heart disease, with that degree of danger emerging as early as their teenage years, according to a new study.

Young children who lead inactive lifestyles are five-to-six times more likely to be at serious risk of heart disease, with that degree of danger emerging as early as their teenage years, according to a new study by researchers at the University of North Carolina at Chapel Hill.

The study looked at a group of children twice -- first while in grade school, then again seven years later when they were in their teens.

Researchers wanted to know more about the early onset of metabolic syndrome, a condition more commonly found in adults. Metabolic syndrome is the label given to a clustering of medical disorders that raise the risk of heart disease and diabetes, such as glucose intolerance, hypertension, elevated triglycerides, low HDL (so-called "good") cholesterol and obesity. Previous studies have found that somewhere from four percent to nine percent of adolescents have the condition.

However, until now, no one had tracked the same group of children over time to see just how fitness and activity levels in their early years played a role in the likelihood of them developing metabolic syndrome by the time they were teenagers, said Robert McMurray, professor of exercise and sports science in the department of exercise and sports science in UNC's College of Arts and Sciences.

The study looked at data from almost 400 children between the ages of seven and 10 from across North Carolina. Researchers measured factors such as height, body mass, percentage body fat, blood pressure and cholesterol levels. Participants were also surveyed about their physical activity and given an aerobic fitness test.

When the same children were examined again seven years later, 4.6 percent had three or more characteristics of metabolic syndrome.

McMurray said adolescents with the syndrome were six times more likely to have had low aerobic fitness as children and five times more likely to have low levels of physical activity at the time they joined the study.

For example, as children, those who had low levels of physical activity got no vigorous exercise (such as playing basketball or soccer) and spent less than 20 minutes a day doing moderate-intensity physical activity (walking briskly, riding a bike at a medium speed). That means that at best, they were getting just one-third of the 60 minutes a day that is currently recommended for children by the Centers for Disease Control and Prevention, said McMurray.

"This shows efforts need to begin early in childhood to increase exercise," he said. "Children today live a very sedentary life and are prone to obesity. This is the first study to examine the importance of childhood fitness levels on your metabolism as a teenager. Previously we didn't know if low fitness levels were an influence.

"It's obvious now that there is a link and this is something which we need to pay attention to by encouraging our kids to keep fit, or suffer the consequences later in life," said McMurray.

Other authors of the study were Shrikant I. Bangdiwala, research professor in the UNC School of Public Health's biostatistics department; Joanne S. Harrell, the Frances Fox Hill professor in the School of Nursing and director of the Center for Research on Chronic Illness; and Leila D. Amorim, who at the time the paper was written was a graduate student in the School of Public Health's biostatistics department and is now an assistant professor in the statistics department at the Federal University of Bahia in Salvador, Brazil.

Journal reference: Robert G McMurray, Shrikant I Bangdiwala, Joanne S Harrell and Leila D Amorim. Adolescents with metabolic syndrome have a history of low fitness and physical activity levels. Dynamic Medicine (in press)


Story Source:

The above story is based on materials provided by University of North Carolina at Chapel Hill. Note: Materials may be edited for content and length.


Cite This Page:

University of North Carolina at Chapel Hill. "Inactive Kids Face 6-fold Risk Of Heart Disease By Teen Years, Study Finds." ScienceDaily. ScienceDaily, 8 April 2008. <www.sciencedaily.com/releases/2008/04/080403202818.htm>.
University of North Carolina at Chapel Hill. (2008, April 8). Inactive Kids Face 6-fold Risk Of Heart Disease By Teen Years, Study Finds. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2008/04/080403202818.htm
University of North Carolina at Chapel Hill. "Inactive Kids Face 6-fold Risk Of Heart Disease By Teen Years, Study Finds." ScienceDaily. www.sciencedaily.com/releases/2008/04/080403202818.htm (accessed July 25, 2014).

Share This




More Health & Medicine News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Beatings and Addiction: Pakistan Drug 'clinic' Tortures Patients

Beatings and Addiction: Pakistan Drug 'clinic' Tortures Patients

AFP (July 24, 2014) A so-called drugs rehab 'clinic' is closed down in Pakistan after police find scores of ‘patients’ chained up alleging serial abuse. Duration 03:05 Video provided by AFP
Powered by NewsLook.com
Too Few Teens Receiving HPV Vaccination, CDC Says

Too Few Teens Receiving HPV Vaccination, CDC Says

Newsy (July 24, 2014) The Centers for Disease Control and Prevention is blaming doctors for the low number of children being vaccinated for HPV. Video provided by Newsy
Powered by NewsLook.com
New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com
Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Newsy (July 24, 2014) Sheik Umar Khan has treated many of the people infected in the Ebola outbreak, and now he's become one of them. Video provided by Newsy
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