With Associated Rise In Cardiovascular Disease Risk Factors
United States population reports describe an increasingly less physically active society, with marked downturns in reported physical activity during adolescence and young adulthood. population. The extent to which physical inactivity affects the risk of heart disease through its negative impact on cardiorespiratory fitness, which is associated with a high prevalence of other CVD risk factors, is not known at the population level.
Mercedes R. population of adolescents and adults younger than 50 years and determined the relation between low fitness and CVD risk factors in this population. Using data from NHANES 1999 2002, the researchers analyzed data for adolescents (aged 12 19 years; n = 3,110) and adults (aged 20 49 years; n = 2,205) who were free from previously diagnosed CVD. The participants underwent submaximal graded exercise treadmill testing to achieve at least 75 percent to 90 percent of their age predicted maximum heart Ray Ban Wayfarer Polarized.html rate. Maximal oxygen consumption (Vo2max) was estimated by measuring the heart rate response to reference levels of submaximal work. adolescents and adults younger Ray Ban Stockists Auckland 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 Ray Ban Auckland 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). Non Hispanic Buy Nike Roshe Online blacks and Mexican Americans were less fit than non Hispanic whites. Body mass index and waist circumference demonstrated the most consistent inverse associations with fitness. Total cholesterol levels and systolic blood pressure were higher and levels of high density lipoprotein cholesterol were lower among participants with low vs. high fitness.
The researchers add that because Nike Air Force 1 Nz older adults and individuals Nike Store Onehunga with existing risk factors for CVD were not tested on the treadmill because of possible health risks, Pandora Charms the results of this study likely underestimate the true prevalence of low fitness in the population.
" . population. The consequences of declines in physical activity over time are now evident by the large proportion of society with low levels of fitness. The correlations we report between low fitness and CVD risk factors suggest a potential trend of increasing morbidity and mortality from chronic diseases the first sign of which is the burgeoning obesity epidemic. Historical evidence from the campaign to educate about the dangers of cigarette smoking indicates that education efforts, particularly among youth, can retard and reverse these negative health behaviors.
Editor's Note: Financial support for data collection was provided by the National Center for Health Statistics (NCHS), a part of the Centers for Disease Control and Prevention, Department of Health and Human Services. Dr. Carnethon was supported in part by a career development award from Timberland Boots Auckland the National Heart, Lung, and Blood Institute, National Institutes of Health.
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