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Daily physical Activity Improves Vascular Function and Motor Skills in children

Journal of Sports Science 2017年第2期5卷 78-88页

作者： Sascha Ketelhut Kerstin Ketelhut Claudia Hacke Reinhard Günter Ketelhut Charité-University Medicine Berlin Berlin 10117 Germany Institute of Sports Science Martin-Luther-University Halle-Wittenberg Halle (Saale) 06120 Germany Medical School Berlin Berlin 12247 Germany Institute of Medical Biometry and Epidemiology University Medical Centre Hamburg-Eppendorf Hamburg 20251 Germany Medical Center Berlin (MCB) Berlin 10559 Germany Institute of Sports Medicine Humboldt-University Berlin Berlin 10115 Germany

The literature is consistent that regular physical activity in children has to be increased in order to compensate the negative health effects resulting from growing sedentary lifestyle. Thus, we analyzed in 45 students （aged 6.6 ± 0.7 years） the effects of a regular exercise intervention, on top of the normal physical education classes, on motor performance （MP） and hemodynamic parameters. The students were randomized either to an intervention （INT）（n = 23） or a control （CON）（n = 22） group. Throughout a 9 months period, INT received additional exercise interventions two days a week for 45 minutes. The main outcome measures were MP, peripheral and central blood pressure （BP）, augmentation index （Alx） and aortic pulse wave velocity （aPWV）. After the exercise intervention, we found significant （P 〈 0.05） positive effects on various test items of MP and significant decreases in peripheral and central systolic BP in INT. In contrast, in CON the respective parameters increased in CON alter the observation period. Moreover, aPWV decreased significantly in INT （P = 0.047） and increased in CON, thus resulting in a significant difference in the mean change （P = 0.043）. There were no considerable changes in AIx in both groups. In conclusion, we demonstrated that an increase in regular physical activity has a positive influence on development of MP and hemodynamic parameters even in early childhood. The findings of this study suggest that an increase in exercise time should be initiated as early as possible to improve motor ability and prevent future cardiovascular risk.

关键词： physical fitness in children exercise and blood pressure arterial stiffness motor performance.

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