Fit & Strong! is a group physical activity and behavior change program for anyone with arthritis. The program consists of 24 sessions, each lasting 90 minutes. The first 60 minutes focus on flexibility, low-impact aerobics, and progressive strength training to improve lower body function. The remaining 30 minutes consist of health education and group problem solving using a structured curriculum. Participants develop personalized action plans to maintain physical activity and progress after the class ends. Fit & Strong! is effective, engaging, and fun – the program has high retention and attendance rates.