This study indicated that the experimental group had improved SEE, M-SEV, and some physical performance components during the 12-week exercise program. Community participation is needed in a community-based intervention. With an
introduction to the elderly club at the potential settings, key persons and community members had discussed with the researcher about the objective, process, and expected outcomes of the study. Key persons in each study setting had helped to introduce the objective of the study, find eligible participants, and motivate eligible participants who had decided not to participate at the first time. These key persons, especially in the experimental setting, influenced the possibility of adherence to exercise of study participants during the study. Thus, key persons in the community have potential to motivate study participants to maintain their exercise behavior and include exercise in their healthy lifestyle