Dataset Information

A new approach to estimate aerobic fitness using the NHANES dataset.

ABSTRACT: INTRODUCTION:Physical activity and fitness are essential for healthy growth in children. The National Health and Nutrition Examination Survey (NHANES) evaluated fitness by estimating V?O2 max from submaximal measurements of heart rate (HR) during graded treadmill exercise. Our aims were (a) to examine how well NHANES methodology used to estimate V?O2 max correlated with actual VO2 max and (b) to evaluate a novel fitness metric using actual data collected during exercise and its relationship to physical activity and sedentary time, lipid profiles, and body composition. METHODS:Fifty-three adolescents completed NHANES submaximal exercise protocol and maximal graded cardiopulmonary exercise testing. We used a novel approach to quantifying fitness (?velocity × incline × body mass (VIM)/?HR slopes) and evaluated its relationship to physical activity and sedentary time using NHANES data (n = 4498). In a subset (n = 740), we compared ?VIM/?HR slopes to NHANES estimated V?O2 max and examined their relationship to cardiovascular risk factors (BMI percentiles and lipid levels). RESULTS:Measured V?O2 peak was moderately correlated with NHANES estimated V?O2 max (r = 0.53, P < 0.01). Significantly higher ?VIM/?HR slopes were associated with increased physical activity and decreased sedentary time. ?VIM/?HR slopes were negatively associated with LDL, triglycerides, and BMI percentiles (P < 0.01). In general, the two fitness models were similar; however, ?VIM/?HR was more discriminating than NHANES in quantifying the relationship between fitness and LDL levels. CONCLUSION:We found that the NHANES estimated V?O2 max accounted for approximately 28% of the variability in the measured V?O2 peak. Our approach to estimating fitness (?VIM/?HR slopes) using actual data provided similar relationships to lipid levels. We suggest that fitness measurements based on actually measured data may produce more accurate assessments of fitness and, ultimately, better approaches linking exercise to health in children.

SUBMITTER: Lu KD

PROVIDER: S-EPMC6860366 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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A new approach to estimate aerobic fitness using the NHANES dataset.

Lu Kim D KD Bar-Yoseph Ronen R Radom-Aizik Shlomit S Cooper Dan M DM

Scandinavian journal of medicine & science in sports 20190603 9

<h4>Introduction</h4>Physical activity and fitness are essential for healthy growth in children. The National Health and Nutrition Examination Survey (NHANES) evaluated fitness by estimating V̇O<sub>2</sub> max from submaximal measurements of heart rate (HR) during graded treadmill exercise. Our aims were (a) to examine how well NHANES methodology used to estimate V̇O<sub>2</sub> max correlated with actual VO<sub>2</sub> max and (b) to evaluate a novel fitness metric using actual data collected ...[more]

PMID: 31063607

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Dataset Information

A new approach to estimate aerobic fitness using the NHANES dataset.

Publications

A new approach to estimate aerobic fitness using the NHANES dataset.

Similar Datasets

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