8 Exercises to Help Your Knees
Straight Leg Raises. If your knee’s not at its best, start with a simple strengthening exercise for your quadriceps, the muscles in the front of the thigh.
Prone Straight Leg Raises.
Side Leg Raises.
Also, is it OK to walk with knee pain?
Why Walking Is Good for Your Knees. Weight-bearing exercise such as walking also helps maintain bone health. Discuss your exercise options with your doctor and physical therapist when you have any condition that is causing knee pain. While walking is recommended for many people, it may not be appropriate for you.