| The Correlations between Cardiorespiratory Fitness Levels and Body Mass Index, Metabolic Syndrome Risk Factors, Homeostasis Model Assessment-Insulin Resistance and High Sensitivity C-Reactive Protein in Male High School Students |
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Soo Youn Youn Kim, Eun Sung Sung Kim, Jung Ho Ho Cho |
1Division of Arts & Physical Education, Department of Sports Medicine, Sookmyung Women's University, Seoul, Korea. jhcho@sm.ac.kr
2Department of Sports and Leisure Studies, Yonsei University College of Sciences in Education, Seoul, Korea. |
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| Abstract |
BACKGROUND
The purpose of this study was to analyze the relationships between cardiorespiratory fitness and body mass index (BMI), metabolic syndrome risk factors, homeostasis model assessment-insulin resistance (HOMA-IR), and high sensitivity C-reactive protein (hsCRP) in male high school students in Korea. Furthermore, the effects of the cardiorespiratory fitness levels on these four factors were examined. METHODS: The level of cardiorespiratory fitness, BMI, percent body fat, waist circumference (WC), systolic blood pressure, glucose, triglycerides (TG), high-density lipoprotein-cholesterol (HDL-C), HOMA-IR, and hsCRP of 227 male high school students were measured. Analyses of multiple correlation and simple regression were applied. RESULTS: The results showed that the level of cardiorespiratory fitness correlated negatively with BMI, percent body fat, WC, TG, and HDL-C, in addition to HOMA-IR and hsCRP, and strongly influenced BMI, percent body fat, WC, TG, HDL-C, HOMA-IR, and hsCRP. Comparative analysis of our subjects showed that higher cardiorespiratory fitness levels had positive effects on BMI, metabolic syndrome risk factors, HOMA-IR, and hsCRP. CONCLUSIONS: This study found that there are close correlations between cardiorespiratory fitness and BMI, metabolic syndrome risk factors, HOMA-IR, and hsCRP. It also showed that, compared to lower levels of cardiorespiratory fitness, higher levels had beneficial effects on BMI, metabolic syndrome risk factors, diabetes, and cardiovascular disease risk factors. |
| Key Words:
Body mass index, Cardiovascular disease, Insulin, Physical fitness, Adolescents |
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