For those of you who are know the importance of keeping their knees healthy and fit, we present some really effective knew strengthening exercises. Just do these exercises regularly for keeping your knees sound and stable.

Quadriceps strengthening Isometrics: Just lie down on floor taking support of your elbows and your waist not resting on the floor. Bend your left leg and stretch the other leg straight for 10 to 20 minutes and then relax, Repeat this exercise for 5 to 10 times.

Quadriceps strengthening straight leg lift: Again, lie down on floor taking support of your elbows and your waist not resting on the floor. Now, raise your right leg 8 to 10 inches and hold it up for 5 to 10 seconds. Then, lower your leg to touch the floor slowly. Repeat this exercise for 5 to 10 times.

Hip and Buttock stretch: Sit on the floor with your left leg over your right leg and then place your hands over your left knee. Now, pull the knee a bit forward while sitting up straight. Try to hold this position for about 15 seconds. Repeat it 5 times.

Calf stretch: Stand against a wall with your left heel on the ground and right knee bent. Stretch the left knee and hold it for 10 to 20 seconds. Repeat this exercise for 5 to 10 times.