RESUMEN
<b>Introduction</b>: The present study was conducted to identify the influence of self-efficacy score and having an action plan on “stages of change” for exercise after one year.<br><b>Methods</b>: Physical functions and psychological factors at baseline and after one year in 105 elderly individuals who participated in a preventive care program. The subjects were classified into four groups by using the stages of change scale for physical activity.<br>The cause related to impact on physical activity and action stage change (stage) after one year later with having or not having action plan for preventive care program in elderly at home in community as well as sense of self efficacy was investigated.<br><b>Results</b>: Self-efficacy scored significantly higher in the usual activity group with continuity of stage activity both at baseline and one year later. The relative risk of having an action plan at baseline for exercise after one year was 2 . 90 (95% CI: 1.52-5.55). This value significantly influenced the maintenance of physical activity after one year.<br><b>Conclusion</b>: The results of this study suggest that showing an action plan was effective in maintenance of physical activity.