Hello, I'm Dr. Donald Ozello of Championship Chiropractic for LIVESTRONG.com. I am going to be discussing exercises that you can perform for overextended knees. Exercises for overextended knees consists of two separate sections. The first section is stretching the muscles in the front of the thigh, your hip flexors and your quadricep muscles. The second section is strengthening the muscles in the back of the thigh and the posterior hip which are your hamstrings and your gluteal muscles. Stretching the muscles in the front of the thigh is quite simple. You can do it several different ways. The easiest way is the old basic quadricep and hip flexor stretch. You always want to support yourself. You use your right hand, reach up and grab the ankle of the right leg. You don't want to grab the foot. You grab the ankle, stand up nice and straight, pull the heel towards the buttocks and then pull that thigh backwards. You will feel a stretch in the hip flexor and in the quadricep muscle. Hold a comfortable stretch for 30to 60 seconds. When you are done, stretch the other side. Another way that you can do that same stretch is to use the opposite hand. So if you want to stretch the left leg, you use the right hand and the reason that that is good is because it targets the muscles on the outer part of the thigh a little bit more which are very important. So you use the same principles as you do when you use the same sided hand but you do it with the opposite side. The second section is strengthening the muscles in the posterior thigh. And easy exercise to do is what's called leg curls. That's going to help to strengthen up the hamstrings and the gluteal muscles. I have a band connected to my ankle. I'm laying in the prone position. I want to bring the ankle as close as I can to the gluteal area. That is going to directly target the hamstring muscles. It is very important to strengthen those muscles for over extended knees. The second exercise directly targets the gluteal muscles. On this one you lay prone, you bend the knee to 90 degrees and you lift up the leg, very simple. This is going to help to strengthen up the muscles in the gluteal area and also the lower back. These two strengthening exercises will help with the over extended knees.