An evidence-based, 8-week at-home strength plan for active adults (40–65) with early knee osteoarthritis. Learn a safe, progressive routine that reduces stair discomfort and improves daily function using 20–30 minute sessions, pain-guided progression, and stair-specific drills. Includes a 9-chapter PDF plus printable checklists, logs, and a flare-up decision guide for confident, measurable progress.