【摘要】 基于同伴效应理论，采用中国家庭追踪调查数据，实证分析同胞运动参与度对儿童青少年运动参与的影响及其作用机制。研究发现：1）同胞运动参与度显著正向影响儿童青少年运动参与，表现为同胞高运动参与度能够显著提升儿童青少年每周锻炼频率（β=0.085,P<0.01）和每次锻炼时间（β=0.208,P<0.01），且该结论在考虑内生性问题后仍成立。2）异质性分析结果表明，同胞性别结构、出生顺序、出生间隔和同胞运动能力具有抑制作用。当同胞性别结构均为男性或出生顺序为最后时，同胞间运动参与的正向影响减弱；当同胞出生间隔越大或同胞运动参与度低于儿童青少年运动参与度时，同胞间运动参与的正向影响减弱。3）机制分析表明，同胞运动参与度通过提高锻炼倾向、增加体育支持和树立锻炼榜样影响儿童青少年运动参与。建议家庭和学校有意识地强化同伴的榜样示范效应，提升儿童青少年的运动参与水平。更多还原

【Abstract】 The effects of sibling sports participation on children and adolescents’ sports participation and its mechanism of action were analysed based on the peer effect theory and by using data from the Chinese Family Panel Studies. The findings were: 1) there was a significant positive effect of sibling sports participation on children and adolescents’ sports participation, which was manifested by the fact that high sibling sport participation could significantly enhance children and adolescents’ weekly exercise frequency(β=0.085, P<0.01) and per exercise time(β=0.208, P<0.01), and this conclusion still held after considering endogeneity issues. 2) Heterogeneity analysis showed that sibling gender structure, birth order, birth spacing and siblings’ exercise capacity had inhibitory effects. When the sibling gender structure was male or the birth order was the last one, the positive effect of sibling exercise capacity was weakened. When the sibling birth spacing is larger or the sibling sports participation is lower than that of children and adolescents, the positive effect of sibling sports participation is also weakened. 3) Mechanistic analyses showed that the three pathways through which sibling sports participation influenced children and adolescents’ sports participation were to increase exercise tendency, increase sport support, and set an example of exercise. It is recommended that families and schools consciously strengthen the example-setting effects of siblings to enhance children and adolescents’ participation in sports.更多还原