How to Strengthen Your Knees: 8 Low-Impact Exercises Backed by Medical Experts

Knee pain affects 25% of adults, according to *American Family Physician*, but targeted exercises can reduce discomfort and improve mobility, says Joseph Burns, M.D., chief musculoskeletal officer at Wellstar Health System. “Strengthening the muscles around the knee—quadriceps, hamstrings, glutes, and calves—provides structural support and reduces strain,” he explains. Experts recommend low-impact routines to avoid further joint damage while building resilience.

What Are the Best Low-Impact Exercises for Knee Health?

Thavun Srisaneha, a certified personal trainer with NASM and ISSA credentials, emphasizes that “weak knees often stem from imbalances or improper movement patterns.” He highlights the following exercises, which focus on stability and gradual strength-building:

1. Butt Kickers

“This warm-up loosens the knee joint and activates the hamstrings,” says Srisaneha. Stand near a wall for balance, then kick each heel toward your glutes for 20 reps per side, completing two rounds. A 2021 study in *The Journal of Orthopaedic and Sports Physical Therapy* found that dynamic movements like this improve joint lubrication and range of motion.

2. Seated-to-Standing Transfers

Using a chair or bench, slowly lower into a seated position, then stand while engaging your glutes and quads. Burns notes this mimics daily activities and strengthens muscles that stabilize the knee. Perform three sets of 15 reps, ensuring your knees don’t cave inward.

3. Glute Bridges

Lying on your back with knees bent, lift your hips until your body forms a straight line from shoulders to knees. “Strong glutes reduce knee torque,” says Dean Seda, a NASM-certified corrective exercise specialist. Aim for three sets of 15 reps, focusing on controlled movement.

4. Wall Sits

Press your back against a wall, bend knees to 90 degrees, and hold the position for 30 seconds to a minute. The American College of Sports Medicine recommends this exercise to build quadriceps strength without excessive joint pressure.

How Can You Prevent Knee Injuries Through Strengthening?

“Neglecting knee care can lead to compensatory pain in the hips or back,” warns Srisaneha. Experts advise combining strengthening with flexibility work. For example, the hamstring stretch—lying on your back and raising one leg to 90 degrees—improves hip flexor mobility, which supports proper knee alignment, according to the *International Journal of Sports Physical Therapy*.

Dean Seda also stresses the importance of proper form during squats: “Keep your knees aligned with your toes and engage your core to distribute force evenly.” A 2022 review in *Sports Medicine* found that squats, when performed correctly, enhance knee stability and reduce injury risk.

When Should You Consult a Physician?

If pain persists, Burns advises seeing a doctor or physical therapist. “They can identify underlying issues like arthritis or ligament damage and tailor an exercise plan,” he says. The Centers for Disease Control and Prevention (CDC) estimates that 30% of adults with knee pain have osteoarthritis, a condition that requires personalized management.

For most individuals, consistent, low-impact exercise remains the cornerstone of knee health. As Srisaneha puts it, “Small, deliberate movements today can prevent major limitations tomorrow.”