Knee Strengthening Intermediate Exercise #1

Knee extension in sitting
begin this knee strengthening exercise in sitting with your knee bent and a resistance band tied around your ankle.Keeping your back straight,slowly straighten your knee tightening the front of your thigh(quadriceps).Perform 3 sets of 10 repetitions provided it is pain free.

Static hamstring contraction exercise #3

Begin this knee strengthening exercise in sitting with your knee bent to about 45 degrees.Press your heel into the floor tightening the back of your thigh (hamstring).Hold for 5 seconds and repeat 10 times as hard as possible pain free.