This exercise is Seated Knee Extension and its aim is to improve or maintain your knee range of movement, along with strengthen the muscles on the front of your thigh, the quadriceps.

On a chair or seated on the edge of the bed, keep one foot on the floor and slowly straighten your other knee so your foot comes off the floor. Your aim is to straighten your knee so that your knee is locked out into full extension. From this position slowly return to the start. Make sure you are in control of the movement and that you don’t simply let your foot drop to the floor. Aim to complete the reps and sets suggested in your rehab programme.

If you find this exercise difficult you can use your other foot to help support your moving leg and take some of the weight. Equally if you find it too easy, you may need to progress onto Resisted Knee Extension using a resistance band. We have another video showing this exercise on our channel.