A randomized controlled trial studied the effects of a community-based exercise program on 40 Alzheimer's patients over 4 months. The patients were divided into a treatment group that participated in the exercise program, and a control group that received usual care. The exercise program consisted of 10 exercises and daily walking. After 4 months, the treatment group showed improved cognitive function, mobility, physical function, and strength compared to the control group. The study demonstrates that exercise can help improve functional ability for Alzheimer's patients.