Strengthening the Argument for Exercise Classes

In recent years, several studies have demonstrated that regular physical exercise can significantly improve cognitive function in older adults. As a result, a local community center has proposed to implement weekly exercise classes specifically designed for seniors. However, some community members argue that the classes would not be beneficial because many seniors already have limited mobility and may struggle to participate. In response, the community center's director claims that:

“If we create tailored exercise programs that accommodate various mobility levels, seniors will participate more often, thereby improving their cognitive health.”

Which of the following, if true, would most strengthen the community center director's argument?