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ObjectiveTo analyze the effect of physical activity on executive function of children and adolescents, and sort out the related factors. MethodsArticles about physical activity intervention for children and adolescents on executive function were retrieved from CNKI, Wanfang Data, Google Scholar, Wiley Online Library and PubMed, from January 1st, 2010 to June 30th, 2021. The articles were screened, evaluated and systematically reviewed. ResultsA total of 21 articles were included, from eleven countries, including 13 randomized controlled trials, involving 2 496 subjects, aged five to 18 years. The articles were published from 2010 to 2019, with mean score of Physiotherapy Evidence Database scale as 5.57. The physical activity intervention mainly involved physical fitness, skills and sport games, with low to high intensity, eight to 120 minutes a time, one to five times a week, no more than ten months. Physical activity was indicated to improve the executive function, specifically inhibition control, working memory and cognitive flexibility, such as the improvement of the accuracy and reaction time of cognitive tasks, and activation of bilateral prefrontal cortex activity. Types, intensity, duration, frequency and cycle of physical activity, participant selection, and assessment tools were related to the effect of intervention. ConclusionPhysical activity can improve the inhibition control, working memory and cognitive flexibility of children and adolescents. The main factors related to the intervention effect are the physical activity elements, the participant's factors and the experimental design factors.
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Objective To establish a sensitive and specific LC-MS/MS method for measurement of notoginsenoside R1, ginsenoside Rg1, ginsenoside Re, ginsenoside Rb1, ginsenoside Rd, tanshinone Ⅰ, astragaloside Ⅳ and harpagosidein of Fufang Xueshuantong Capsule in rat plasma. Methods The HPLC separation was performed on Thermo Hypersil GOLD column (2.1 mm× 100mm, 5 μm) at 30 ℃, injecting 10 μL and using acetonitrile-water (0.1% formic acid) as the mobile phrase (B was acetonitrile, A was 0.1%formic acid;0-10 min, 25%-55%B;10-20 min, 55%-70%B) with the flow rate of 0.2 mL/min. Detection was performed on a tandem quadrapole mass spectrometer using positive electrospray ionization, SRM scan mode. Results The eight compounds showed good linearity in wide ranges (notoginsenoside R1 1.00-800 ng/mL, ginsenoside Rg1 0.950-760 ng/mL, ginsenoside Re 1.44-1440 ng/mL, ginsenoside Rb1 1.33-1330 ng/mL, ginsenoside Rd 9.90-990 ng/mL, harpagosidein 1.01-1010 ng/mL, astragaloside Ⅳ 1.16-928 ng/mL, tanshinone Ⅰ 10.0-800 ng/mL). In addition, the accuracy and recovery were around 85%-115%and 50%-70%. The RSD of intra and inter day precision were lower than 15%. Conclusion The method is specific, rapid and sensitive. Therefore, it can be applied to pharmacokinetic study of eight effective compounds in Fufang Xueshuantong Capsule.
