WHEN Basic Knee Exercise
For this exercise you only need a hard-backed chair, and there are multiple intensity levels to choose from.
Initially, start by simply lifting the weight of your leg until you can repeat the exercise 50 times on each side (it goes quickly we promise!). Then if you have a leg weight, or even just a heavy shoe, add these to increase the resistance.
This should not cause any pain, and if it is, stop the exercise immediately.