Physical Exercise - The Intermediary Model Of The Cognitive Function Test

The former researches on the relationship between physical activities(P.A.) and cognition functions(C.F.) focused on the direct influence of P.A. to C.F., which ignored the mediator between P.A. and C.F., and indirect influence of P.A. to C.F. This study begins with the hypothesis that P.A. has benefit to C.F.; takes the effective mechanism between P.A. and C.F. as entrance and brings forward a mediator-model. This study makes great efforts to discuss: the possible psychological mediator between P.A. and C.F.. It tests the hypothetic model by the result of the measure on the behavior of physical activities and general self-efficacy, aging attitude, cognition self-efficacy, C.F. of the parts of Chinese mid-old and old exercisers. The hypothesis of this study is that P.A. has indirect positive effect on C.F.. Concretely speaking, P.A. has positive effect on aging attitude and general self-efficacy; aging attitude and general self-efficacy has positive effect on cognition self-efficacy; cognition efficacy has positive effect on C.F..In this study, by the means of the questionnaire scale and the computer scale, the researcher measure the exercise behavior, psychological characters (general self-efficacy, aging attitude, cognition self-efficacy) and C.F. (reaction speed, working memory) of the 185 mid-old and old exercisers (the number of male: 97, female: 88; the average age: 60.3±7.59), then use the measure results as original data to test mediator model of P.A.-C.F., the S.E.M. result shows that: the results of goodness of fit summary are all satisfying (χ2=82.6(p<.05);χ2/df=2.12;NNFI=0.95;C.F.I=0.97;RMEA=0.78); all the path coefficients between variables have significant effect. From what we discuss above, we can conclude that the mediator model of P.A.-C.F. is validated; the hypothesis is supported.The mediator model of P.A.-C.F. shows that: P.A. has positive effect on general self-efficacy and aging attitude of the exercisers, which enhances the cognition self-efficacy of the exercisers. Finally, P.A has positive effect on C.F. of the exercisers. This model focuses on the psychological mediator which explain the relationship between PC and C.F.. This prompts that during exercising the mid old and old exercisers should pay attention to the intendance, evaluation and feedback of the results of general self-efficacy, aging attitude, cognition self-efficacy, in order to improve their C.F. and slower their aging.This study also analyzes and discusses the future direction about the research on P.A.-C.F., then bring forward key points which we should pay attention to in the future study:①researchers should make a effort to use different research methods, i.e. not only use latitude research method, but also use longitude research method, in order to get causal effect between P.A. and C.F..②researchers should make a effort to change the research tropism, i.e. not only consider psychology variables as mediator between P.A. and C.F., but also consider physical variables as mediator between P.A. and C.F. for thinking over the mediator between P.A. and C.F. synthetically, which will more open out the mechanism of the influence of P.A. on C.F..