If you're over 60 and struggling with weak, painful knees that hurt with every step, this video reveals the one physio-approved chair exercise that strengthens your knees better than walking—without the damaging impact. Discover why seated knee extensions are the #1 exercise physical therapists prescribe for knee pain, arthritis, and instability, and learn the exact technique to reduce knee pain by 40-60% in just 8-12 weeks. In this video, Dr. Serena Serrati explains why walking, despite being generally healthy, often makes weak knees worse by loading them with 2-3 times your body weight with every step—up to 900,000 pounds of cumulative stress in a single 30-minute walk. Instead, she shows you how seated knee extensions build the quadriceps muscle strength that stabilizes and protects your knee joint with zero impact, zero weight-bearing stress, and complete control over your pain-free range of motion. What You'll Learn: Why walking damages weak arthritic knees instead of strengthening them The exact seated knee extension technique that physiotherapists recommend How this exercise builds knee-supporting strength without joint stress Three pain-level modifications: severe knee pain, moderate weakness, and mild weakness Step-by-step instructions you can follow safely at home today The science behind why quadriceps strengthening reduces knee pain 40-60% How to integrate this 2-3 minute exercise into your daily routine Realistic improvement timeline: what to expect at weeks 2, 4, 8, and 12 Specific modifications for osteoarthritis, patellofemoral pain, post-surgery, and knee instability Six critical mistakes that prevent results or worsen knee pain Walking vs. seated extensions: direct impact force comparison When to safely return to walking once your knees are strong enough Exercise progression guidance: reps, sets, frequency, and adding resistance Real-world functional improvements: stairs, standing, car transfers, grocery shopping This evidence-based approach is recommended by orthopedic specialists and physical therapists worldwide as first-line treatment for knee osteoarthritis, weak knees, knee pain, and knee instability in seniors. Research shows that quadriceps strengthening exercises produce greater pain reduction and functional improvement than walking programs for people with damaged knees, because you're building the muscle protection your joints desperately need without the destructive impact that makes arthritis worse. Whether you have severe knee arthritis, chronic knee pain, knees that buckle or feel unstable, or you've been told to "just walk more" but find walking makes your knees hurt for hours or days afterward, this video gives you a safer, more effective solution you can start today with just a sturdy chair. Key Topics Covered: Seated knee extensions for knee pain | Quadriceps strengthening exercises | Knee pain relief over 60 | Exercises for weak knees | Knee arthritis exercises | Better than walking for knee pain | Physio-approved knee exercises | Knee stability exercises | Osteoarthritis knee exercises | Senior knee strengthening | Knee pain exercises at home | Chair exercises for seniors | Knee pain relief without surgery | Exercises for knee instability | Patellofemoral pain exercises | Post knee surgery exercises | How to strengthen weak knees | Knee exercises for seniors over 60 | Reduce knee pain naturally | Build knee strength safely Dr. Serena Serrati is a trusted voice in senior health, providing evidence-based, practical guidance to help seniors over 60 maintain strength, mobility, independence, and quality of life through safe, effective exercise and lifestyle strategies. Subscribe to Dr. Serena Serrati | Senior Health for more expert senior health tips, evidence-based exercise guidance, and practical strategies to stay strong, mobile, and independent as you age. Disclaimer: The content provided on Dr. Serena Serrati | Senior Health is intended for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or qualified healthcare provider with any questions you may have regarding a medical condition or health concern.