Effect of physical activity on positive mental characters for college students ——Based on the analyses of deep neural networks HU Nan1，HUANG Dandan2，ZHENG Hongzhu1，HU Hong2
(1.School of Management Science and Real Estate，Chongqing University，Chongqing 400045，China；2.School of Physical Education，Chongqing University，Chongqing 400044，China)
Abstract: To explore the relationship between physical activity and positive mental characters, this paper uses a questionnaire survey and a scale assessment on physical activity and positive mental characters were carried out to objectively assess physical activity and positive mental characters among college students from five universities in Chongqing. Hierarchy cluster analysis and deep neural network model is used to analyse the effects of the amount of physical activity with different intensities on positive mental characters among college students. The results show that: (1) The more medium and high intensity physical activity college students hold, the higher level of positive mental characters they will possess. (2) The high-intensity physical activity has the most effective effect on interpersonal relationship, justice, and cognition. (3) The moderate-intensity physical activity has the most effective effect on temperance, emotion and justice. (4) College students who strictly follow the recommended physical activity amount have a higher transcendence character. It can be concluded that the stage of college is a most important period that college students could improve and develop positive mental characters, and that providing physical activity intervention may be a vital way to help them cultivate such positive mental character.