Abstract
0467 Children are the most physical active group in the population. However it is unclear whether high levels of physical activities of an active child indicates a similar aerobic and anaerobic fitness when compared to a child who is engaged in regular sports training. PURPOSE: The purpose of this study was to compare the aerobic and anaerobic power of trained, active and sedentary prepubescent boys. METHODS: Subjects were 21 boys divided into 3 groups: Trained (n = 7, age = 8.9 ± 1.0 years) who trained long distance running more than six months, and at least 3 times a week; Active (n = 7, age: 8.0 ± 0.4 years); and Sedentary (n = 7, age: 8.6 ± 0.4 years). Active and sedentary boys presented different physical activity levels (p>0.05) determined by using a three-day diary (Bouchard, 1983). Subjects performed a 30-second Wingate anaerobic test for their relative peak anaerobic power and the treadmill Balke protocol to obtain their relative peak oxygen uptake using a Parvo Medics metabolic system. Body fat was assessed according to the Slaughter (1998) equation and it was found that none of them were overweight and also all the subjects were prepubescent, classified as Tanner stage 1 for pubic hair. Group comparisons were made using one-way ANOVA's. Post hoc scheffé followed-up the significant differences. RESULTS: Trained boys presented superior values for relative peak oxygen uptake (55.7 ± 7.7 m.kg-1.min-1) when compared to active (38.7 ± 3.3 ml.kg-1.min-1) and sedentary (39.9 ± 7.7 ml.kg-1.min-1) boys (p<0.05). Trained boys (8.35 ± 0.82 W.kg-1) presented superior values for relative peak anaerobic power when compared to sedentary (6.9 ± 1.0 W.kg-1) boys (p>0.05). No other contrasts were significant for relative peak anaerobic power. CONCLUSION: The results suggest that trained boys have better physiological indicators for aerobic fitness. In addition, physical activity differences of active and sedentary boys did not discriminate physical fitness as measured by aerobic and anaerobic power.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
