Water therapy is awesome …. When I had my knee done last year my knee was stuck for good reason ….. I started water therapy with a pt she went through all kinds off exercises and they have modalities to help with certain exercises and stretches…. So I don’t swim it is all exercises but in the pool it is so much easier …. For instance I am able to bare more weight down on my knee than on land …Use floats on my ankles and bend my leg back and let my leg relax to get more of a bend …. For me it’s all about getting more of a bend ….but I am sure anyone can look up online or talk to there dr or pt create a program that will work for them …. I tweek my program as needed.