![]() ![]() ![]() Youth who have low levels of physical activity and high levels of sedentary behavior are also more likely to have lower cardiorespiratory fitness. Approximately one third of both males and females failed to meet recommended standards for cardiorespiratory fitness.Ĭonclusions In US youth, cardiorespiratory fitness is lower in males and females who are overweight than in those of normal weight, but fitness is not related to race/ethnicity. For both males and females, those in the normal weight group had higher fitness levels than those in the at risk for overweight and overweight groups. Among males, older participants had higher V̇O 2max values, while in females, younger participants had higher values. min −1) was higher in males (mean ± SE, 46.4 ± 0.4) than in females (mean ± SE, 38.7 ± 0.3) but did not differ across race/ethnicity groups.Main Outcome Measure Estimated maximal oxygen uptake (V̇O 2max) determined by a submaximal treadmill exercise test. Main Exposures Age, sex, race/ethnicity, weight status, self-reported physical activity, and television viewing. ![]() The National Center for Health Statistics conducted the survey. Participants A representative sample of 4732 youth aged 12 to 19 years was examined 3287 completed the treadmill test and were included in the analysis. Setting The National Health and Nutrition Examination Survey's mobile examination center, throughout the United States from 1999-2002. Objectives To assess cardiorespiratory fitness levels in youth aged 12 to 19 years and to examine associations between fitness and age, sex, race/ethnicity, and self-reported physical activity in this age group. Shared Decision Making and Communication.Scientific Discovery and the Future of Medicine.Health Care Economics, Insurance, Payment.Clinical Implications of Basic Neuroscience.Challenges in Clinical Electrocardiography. ![]()
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