科研之友
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摘要
Aim: The purpose of this study was to investigate the relationship between maximum oxygen uptake (VO2PEAK) and body fat in young children on a population-based level.
Methods: Participants were 586 children (311 boys and 275 girls) aged 6.8 +/- 0.4 years, recruited from a population-based cohort. VO2PEAK was measured by indirect calorimetry during a maximal exercise test. Percent body fat (BF%) was estimated from skinfold measurements.
Results: Significant relationships existed between BF% and absolute values of VO2PEAK (mL/min), VO2PEAK scaled by body weight (mL/min/kg) and VO2PEAK by allometric scaling (mL/min/kg(0.71)), whereas no relationships were detected for VO2PEAK scaled to fat-free mass (FFM) (mL/min/FFM). Person correlation coefficients for boys were 0.26, -0.38, -0.19 and -0.01 NS and for girls 0.33, -0.42, -0.21 and -0.03 NS, respectively. Significant differences in VO2PEAK existed between different quartiles of BF%, with the exception when VO2PEAK was scaled to FFM.
Conclusion: Our findings document the coexistence of two known risk factors for disease at a young age on a population-base and confirms that VO2PEAK was scaled to FFM represents a body fat independent way of expressing fitness.
- 出版日期2010-12
