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In this correlational study, physical activity of girls’ has been predicted using ecological approach. For this purpose, 374 girls aged 10-12 years selected and completed Self-report questionnaire and physical activity children with reminders 7 days (PAQ-C), Perceived physical competence questionnaire (PPFS), Perceived School Climate Questionnaire for physical activity (Am & et al,2005) and Social Support Questionnaire (Grier and et al, 2008). The BMI index and Lincoln Oseretsky Motor Skills Test was calculated for all subjects. Multiple regression analysis showed Children's fitness, physical competence, perceived climate of the physical environment and social support of  friends and family (social environment) are significant predictors for amount of children's  physical activity (P <0.5). In this regard, based on effect coefficients it would be say that Fitness (10%), physical competence (15%), Motor Skills (12%), physical environment (23%) and social environment (24%) can predict children's physical activity. According to results, it would be suggested using the well- known ecological variables to predict children's activities.

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Abstract
Introduction : The present study aims to analyze research articles from the past decade in the field of attentional focus among children and adolescents using a scientometric approach.
Methods: This descriptive and review-based study utilized a specific search strategy in the Web of Science (WoS) citation database. A total of 29 relevant articles on attentional focus published between 2013 and 2023 were selected and analyzed using HistCite and VOSviewer software.
Resultss: The findings revealed that the main research topics included motor performance, motor learning, and motor control, with a predominant emphasis on external focus of attention. Moreover, research attention toward adolescents was found to be lower compared to children. The most active journals in this field were Human Movement Science and Psychology of Sport and Exercise. Prominent authors such as Wulf, Abdollahipour, and Pesta received the highest number of scientific citations. In terms of international collaboration, countries like the United States, the United Kingdom, and Australia were leading, with the U.S. showing strong connections with Iran and the Czech Republic, playing a key role in scientific networks.
Conclusion: The results indicate that the role of attentional focus instructions in motor learning and performance particularly in children and adolescents is an emerging and evolving area. However, attentional instructions in these age groups, who possess developing cognitive characteristics, have been understudied so far. This analysis emphasizes that enhancing international collaboration and focusing on existing research gaps can pave the way for future investigations.
Keywords: Sports performance, children and adolescents, cognitive development, attentional strategies, scientometric study

Abstract
Introduction : The present study aims to analyze research articles from the past decade in the field of attentional focus among children and adolescents using a scientometric approach.
Methods: This descriptive and review-based study utilized a specific search strategy in the Web of Science (WoS) citation database. A total of 29 relevant articles on attentional focus published between 2013 and 2023 were selected and analyzed using HistCite and VOSviewer software.
Resultss: The findings revealed that the main research topics included motor performance, motor learning, and motor control, with a predominant emphasis on external focus of attention. Moreover, research attention toward adolescents was found to be lower compared to children. The most active journals in this field were Human Movement Science and Psychology of Sport and Exercise. Prominent authors such as Wulf, Abdollahipour, and Pesta received the highest number of scientific citations. In terms of international collaboration, countries like the United States, the United Kingdom, and Australia were leading, with the U.S. showing strong connections with Iran and the Czech Republic, playing a key role in scientific networks.
Conclusion: The results indicate that the role of attentional focus instructions in motor learning and performance particularly in children and adolescents is an emerging and evolving area. However, attentional instructions in these age groups, who possess developing cognitive characteristics, have been understudied so far. This analysis emphasizes that enhancing international collaboration and focusing on existing research gaps can pave the way for future investigations.
Keywords: Sports performance, children and adolescents, cognitive development, attentional strategies, scientometric study