Especially in field of exercise psychology, it is quite lacking of thorough and systematic researching over the relation between physical exercise and physical self-concept of middle school students.
尤其在锻炼心理学领域，对于中学生的身体锻炼与身体自我概念之间的关系，缺乏较为全面和系统的研究。
Physical self-concept is positively related with subjective well-being.
身体自我和主观幸福感之间存在显著地正相关。
Physical self-concept is positively related with subjective well-being.
身体自我和主观幸福感之间存在显著地正相关。
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