Unfit teenagers and adults have a higher risk of cardiovascular diseases.

by Medindia Content Team on  December 28, 2005 at 8:52 PM Research News   - G J E 4
Unfit teenagers and adults have a higher risk of cardiovascular diseases.
As an awakening comes a study that states that about one-third of adolescents and 14 percent of adults (aged 20 to 49 years) in the U.S. have poor cardio respiratory fitness. This results in an increased total cholesterol and blood pressure levels. The study is published in the December 21 issue of JAMA.

There has been a strong correlation between poor fitness and death from CVD and cancer.

In addition there is strong evidence from observational studies that physical inactivity and poor fitness are associated with higher illness and death from all causes, including cardiovascular disease (CVD) and cancer. Mercedes R. Carnethon, Ph.D., and colleagues from the Feinberg School of Medicine, Northwestern University, Chicago spearheaded the study.

The samples were examined for prevalence of low fitness in the U.S. population of adolescents and adults younger than 50 years and determined the relation between low fitness and CVD risk factors in this population.

The study population underwent sub maximal graded treadmill test in order to achieve at least 75 percent to 90 percent of their age-predicted maximum heart rate. As reported by the researchers, The results were that 19.2 % of an estimated 16 million U.S. adolescents and adults younger than 50 years were in the low fitness category, and 33.6 percent of adolescents (approximately 7.5 million) and 13.9 percent of adults (approximately 8.5 million) had low fitness. Among adolescents, the prevalence of low fitness was similar between females (34.4 percent) and males (32.9 percent), but among adults the prevalence of low fitness was significantly higher in females (16.2 percent) compared with males (11.8 percent).

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