a Institute of Sport Pedagogy and Coaching Science , University of Tartu , Tartu , Estonia.
Eur J Sport Sci. 2013;13(6):716-22. doi: 10.1080/17461391.2013.775349. Epub 2013 Mar 12.
A longitudinal framework was used to examine the hypotheses of (1) whether physical activity predicts changes in physical self-worth or (2) whether physical self-worth predicts changes in physical activity in adolescent girls. Participants (n=272) completed measures of physical self-worth and participation in physical activities at three different points spanning a two-year interval. A cross-lagged panel model using structural equation modelling analyses indicated that physical self-worth predicted subsequent physical activity and physical activity in turn predicted subsequent physical self-worth across time. Findings demonstrated a reciprocal relationship between physical self-worth and physical activity during early adolescence. This study supports the use of the reciprocal effects model (REM) in gaining an understanding of the cross-lagged relationships between physical self-worth and participation in physical activities amongst adolescent girls.
（1）体育活动是否能预测身体自尊的变化，或（2）身体自尊是否能预测青春期女孩体育活动的变化。研究对象（n=272）在两年的时间间隔内分三个不同时间点完成了身体自尊和参与体育活动的测量。使用结构方程模型分析的交叉滞后面板模型表明，身体自尊预测了随后的体育活动，而体育活动反过来又预测了随后的身体自尊。研究结果表明，在青少年早期，身体自尊和体育活动之间存在一种相互关系。本研究支持使用互惠效应模型（REM）来理解身体自尊与青春期女孩参与体育活动之间的交叉滞后关系。
