Navigation Links
Study links hypertension in obese children to television viewing
Date:10/29/2007

San Diego, October 30, 2007 Researchers from the University of California, San Diego; the Rady Childrens Hospital San Diego; the University of California, San Francisco; and the University of South Alabama determined that television viewing is not only linked to childhood obesity, but also to hypertension in children, according to a study published in the December 2007 issue of the American Journal of Preventive Medicine.

Childhood obesity is a major health concern in the United States. As of 2004, the National Health and Nutrition Examination Survey (NHANES) estimated that 17% of children and adolescents were obese. Obesity is known to increase the possibility of cardiovascular risk factors, such as hypertension. Recent studies have shown that cardiovascular risk factors in childhood are significant predictors of preclinical atherosclerosis in adulthood.

Data was gathered regarding 546 subjects, aged 4 to 17 years, who were evaluated for obesity at pediatric subspecialty weight management clinics in San Diego CA, San Francisco CA, and Dayton, OH, from 2003 to 2005. Children and their parent(s) were given a written questionnaire, which was used to estimate the average daily time spent watching TV, and then a physician verbally reviewed and confirmed the time estimate. The height and weight of the children were measured to determine a Body Mass Index (BMI) and their blood pressures were recorded.

Investigators determined that TV time was positively correlated with the severity of obesity. After controlling for race, site, and BMI score, both the severity of obesity and daily TV time were significant independent predictors of the presence of hypertension. Children watching 2 to 4 hours of TV had 2.5 times the odds of hypertension compared with children watching 0 to <2 hours. The odds of hypertension for children watching 4 or more hours of TV were 3.3 times greater than for children watching 0 to <2 hours of TV.

Writing in the article, Jeffrey B. Schwimmer, MD (Associate Professor of Pediatrics at University of California, San Diego and Director of Weight and Wellness at Rady Children's Hospital San Diego), states, The current study illustrates the need for considerable physician and family involvement to decrease TV time among obese children. The American Academy of Pediatrics (AAP) recommends that children watch less than 2 hours of TV per day, but reports that only half (51%) of pediatricians make this recommendation to patientsTV viewing is an attractive target for intervention, particularly among obese children with hypertension. Several studies have demonstrated that changing TV time alone can lead to weight loss, without any changes in physical activity.

In a commentary published in the same issue of the American Journal of Preventive Medicine, Stuart J.H. Biddle, from the School of Sport and Exercise Sciences, Loughborough University, UK, cautions that studies of TV viewing are part of a recent trend to study sedentary behaviors in general, and such studies are difficult to interpret.

He argues, There is much debate concerning whether TV viewing is associated with obesity in young peopleFor example, an extensive meta-analysis of mainly cross-sectional studies showed that the relationship is very smallMoreover, the small relationship may be a reflection of other trendsIf obesity is causally related to TV viewing, as some suggest, how do we account for the following paradoxes: (1) obesity levels are increasing but TV viewing figures are not, (2) obesity increases during adolescence at the same time that TV viewing decreases, and (3) boys watch more TV than girls but show less obesity and greater physical activity" Whatever the true findings, the association between sedentary behavior (TV viewing or other behaviors) and health outcomes, at least in youth, is likely to be complex and, as yet, unknown.


'/>"/>

Contact: AJPM Editorial Office
eAJPM@ucsd.edu
858-457-7292
Elsevier Health Sciences
Source:Eurekalert

Related medicine news :

1. Rural Canadians travel far for specialists: study
2. A new study surpasses Gene Therapy Hurdle
3. Tomato Sauce reduces Cancer Risk- Study
4. A question on study of Adult Stem Cell
5. Study on obesity and heart failure
6. National Lung Study in the process
7. Marijuana gateway theory strengthened by study of twins
8. Old theory of adaptation confirmed by new study
9. Study casts doubt on keyboard ills
10. Gene study links endometriosis, infertility
11. Study reveals how stress can make you sick
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/30/2017)... ... , ... An inventor and manicurist from Greet, S.C., wants to offer people a new way ... maintain clean and healthy feet, so I know the importance of proper foot care," he ... designed the FOOT-TRAN SYSTEM." , The FOOT-TRAN SYSTEM enables a user to clean and exfoliate ...
(Date:3/30/2017)... ... March 30, 2017 , ... This ... to President Trump expressing their support for an independent Vaccine Safety Commission. Five ... and one medical journalist, will hold a press conference at 9:00 AM ...
(Date:3/29/2017)... (PRWEB) , ... March 29, 2017 , ... In the ... to 300,000 people each year develop other types of metastatic brain tumors(3). Though most ... the brain(3). As efforts focus on finding more effective treatment options, the San ...
(Date:3/29/2017)... ... ... the main cause of hay fever in the United States, with an estimated 95 percent ... to July each year; with the worst time for sufferers being June and July. ... ) provide an effective defense against grass pollen; they are proven in independent studies to ...
(Date:3/29/2017)... St. Petersburg, FL (PRWEB) , ... March 30, 2017 , ... ... Often called the "Spice of Life" or "Wonder Spice", it has been used for ... extensive use in the East," says Heshelow, author of " Turmeric: How to Use ...
Breaking Medicine News(10 mins):
(Date:3/29/2017)... 29, 2017 Research and Markets has announced the ... Treated at Proton Therapy Centers & Forecast" report to their offering. ... The South Korean Proton ... market size in 2016. The Untapped Proton Therapy Market for ... in 2016. Proton Therapy plays an important role in ...
(Date:3/29/2017)... , March 29, 2017  Experts in the ... monitoring devices like  Soberlink Systems  as a model ... paper, published in early 2017, concluded that remote ... in managing patient recovery." The findings ... of Addiction Medicine, detail a range of variables ...
(Date:3/29/2017)... Calif. , March 29, 2017 ... for patients as the highest standard in quality ... Krypton Vision introduces its objective Wavefront-driven refraction technologies ... subjective approach. This enables an unprecedented level of ... - exceptional vision relegated to Topgun Navy fighter ...
Breaking Medicine Technology: