An Exercise Intervention Study For Depressed Patients Based On An Ecological Model Of Exercise Behavior

The main treatment modalities for depression currently include medication,physical therapy and psychotherapy.Due to the complexity of depression,the existing treatment modalities perform poorly in terms of treatment efficacy and treatment compliance,and are unable to provide ideal help for some special groups,such as adolescents,pregnant women or people with other physical and mental disorders.In recent years,the effectiveness of exercise interventions in the treatment of depression has been demonstrated to varying degrees in practical studies related to exercise interventions for depression.Exercise interventions can avoid some of the inevitable shortcomings of existing treatment modalities and show some advantages over other treatment modalities for specific populations,not only improving the mood of depressed patients,but also promoting the recovery of social functioning and reducing their sense of stigma.However,the persistence of the subjects has been a major problem in related studies.In order to promote the development of exercise behavior in depressed patients,this study chose the ecological model of exercise behavior theory as the basis for conducting exercise behavior interventions to promote the occurrence and maintenance of exercise behavior in subjects,and to provide solutions to the remaining problems in previous related studies.Patients who met the diagnostic criteria for monophasic depressive episodes in the DSM-IV in the face-to-face hospital consultation and also met the SDS Depression Self-Rating Scale depression level score≥53 and were aged 16-50 years old were screened,and a total of 60 outpatients with depression were finally included.The study used psychometric,questionnaire,and experimental research methods to perform exercise intervention on the subjects,and the exercise behavior and psychological level of the subjects were investigated at three stages:before the intervention,after the intervention,and at the end of the follow-up.The exercise intervention program was based on the ecological model of exercise,and provided subjects with exercise programs and exercise environments that were conducive to their exercise from the micro,meso,peripheral and macro systems of individual exercise,so as to promote the occurrence and maintenance of their exercise behaviors.The exercise intervention phase was 8 weeks,with a follow-up duration of 8weeks.The experiment was a 2（group）×3（time point）design,and data were processed using t-test and repeated measures ANOVA.Results:（1）There was a significant time main effect between the experimental and control groups in SDS score level scores（F₂,110=36.916,p<0.001,biasη²=0.402）,indicating that the SDS scores of the experimental subjects were significantly different in the time dimension.there was an interaction between the grouping factor of SDS scores and the time factor（F₂,110=16.214,p<0.001,biasη²=0.228）,indicating that the SDS scores of experimental subjects in different subgroups also differed significantly in time.（2）After the experimental intervention,the experimental group scored significantly lower（p<0.05）than the control group on the anger dimension in the state of mind.（3）There was a significant main effect of time between the experimental group and the control group in the scores of motor volume score level（F₂,110=76.524,p<0.001,biasη²=0.889）,indicating that there was a significant difference between the experimental subjects’motor volume in the time dimension.There was an interaction between the grouping factor and the time factor for the exercise score（F₂,110=53.848,p<0.001,biasη²=0.022）,indicating that there was also a significant difference in the amount of exercise between the experimental group and the control group at different time points.There was a significant grouping main effect between the experimental and control groups on the internal motivation dimension scores（F₂,110=31.065,p<0.001,biasη²=0.350）,indicating that there was a significant difference in the level of internal motivation between the experimental and control groups.A significant time*group interaction effect（F₂,110=13.180,p<0.001,biasη²=0.241）indicated that there was also a significant difference in the level of internal motivation between the experimental and control groups at different time points.There was a significant（F₂,110=9.242,p<0.01,biasη²=0.228）grouping main effect for the lack of motivation dimension between the experimental and control groups（p<0.05）,indicating that there was a significant difference in the level of lack of motivation between the experimental and control groups.The time*group interaction effect was significant（F₂,110=22.082,p<0.001,biasη²=0.195）（p<0.001）,indicating that there was also a significant difference in the level of lack of motivation between the experimental group and the control group at different time points.Conclusions:（1）8 weeks of moderate intensity aerobic exercise intervention can effectively reduce the depression level of depressed patients in the experimental group and can be maintained for a certain period of time after the end of the intervention;（2）8 weeks of moderate intensity aerobic experimental intervention can improve the level of state of mind of depressed patients in the experimental group.（3）8 weeks of exercise under the altered ecological environment can effectively improve the amount of exercise and internal exercise motivation of depressed patients.