This exercise is for knee strengthening.
1 Sitting on a chair or stool with wheels use one leg to pull you across a flat surface.
2 Be sure not to rock your whole body and concentrate on using the muscles in the back of thigh.
3 Repeat 20 to 30 repetitions with one leg then switch and repeat with the other leg.
4 Can use weight on the ankle or chair to increase resistance.
Once you've finished the exercise, click to see what percentage you have completed.