Knowing the proper exercises your knees need is essential to understanding knee strengthening exercises and how to go about it on a daily basis following a surgical procedure or even a bad fall. However, most of us are not physical therapists and we cannot just guess what is best for ur knees on a everyday basis. The first thing anyone of us should do is consult you own physician to make sure you are doing the right thing. Now there are many courses out there on the internet that talk about the proper exercises that one should do. Be sure to do proper research before begining any course and always make sure it is right for you and your body.