Therapeutic exercise
Straight-Leg Raise
Strengthens the quadriceps and hip flexors without bending the knee. Effective for moderate knee osteoarthritis when squats are contraindicated.
How to perform
- Starting position. Lie on your back with the unaffected leg bent (foot flat) and the affected leg extended.
- Step 2. Contract the quadriceps of the affected leg and lift it to the height of the opposite knee.
- Step 3. Hold 2 seconds at the top and lower with control.
- Return. Do not allow the knee to bend during the lift.
When not to perform
- Acute low back pain
- Disc herniation with radiating symptoms
Medical disclaimer. These exercises are presented for informational purposes only. Always consult your physician before starting any exercise program, especially in case of acute pain, recent injury, or underlying clinical condition.
Related Exercises
Quadriceps Isometric Sets
Isometric quadriceps activation without joint movement. Preserves strength without overloading the joint — a cornerstone of conservative treatment for knee osteoarthritis.
Mini Squat (0 to 45 Degrees)
Partial squat limited to the first 45 degrees of knee flexion, protecting the patellofemoral joint while recruiting quadriceps, glutes, and knee stabilizers. The exercise of choice in knee osteoarthritis and the early phase of meniscal or ligament rehab.
Standing Quadriceps Stretch
Stretches the quadriceps and rectus femoris, frequently shortened in patients with chondromalacia. Reduces traction on the patella.