Ehime Prefecture has the highest heart failure mortality rate among men and women in Japan. Healthy life expectancy is low nationwide, which may be related to sarcopenia and frailty. Uwajima City contains a progresses aging of the population in the Ehime Prefecture. Therefore, preventing heart failure requires treatment and patient education not only for the underlying disease, but also for the complications associated with aging, such as sarcopenia and frailty. In 2020, we began working with the fitness club LocomoK.O to focus on prevention after the onset of disease and prevention before onset. We have commenced surveys of healthy older adults living in the community in Uwajima City, including the Short Physical Performance Battery, physical functions such as handgrip strength, and body composition assessment using in-body tests. The data showed that the rate of sarcopenia was extremely high, at 70% in patients with acute heart failure and 39% in the healthy older group, and that 24% of patients with acute heart failure had severe sarcopenia. Based on the collected data, we started health seminars in 2023 to educate citizens about the disease to prevent the onset and recurrence of heart disease, which is in line with the current situation in Uwajima City. We hope that our activities will help those struggling with local medical care.