This exercise is called Heel Slides and its aim is to improve or maintain your knee range of movement.

Start by laying on the floor. If you take your shoes off you will find this exercise easier to perform. Simply slide your heel towards your body so that your knee is bending, and then return to the start position. Aim to move your knee as much as you can without any sharp pain, and you may find the range improves as you work through the set. Follow the guidance in your rehab programme for the amount of reps or duration.

If you struggle to get onto the floor you can perform this exercise in a chair but you won’t generally be able to create as much movement, you can also perform this exercise on a sofa but may find it a little harder due to the softness of the cushions.