 I think to backtrack and just say, what do we do to try to protect all of the body parts? It's, you know, it's not as specific as just your knee or your back. If you keep it very simple and you start out from your feet up, when you, before you play golf, there's, you could do five or six stretches that really help. One stretch would be, I mean, these are simple stretches where you put one foot in front of the other, you kind of flex up your lead foot and you lean forward. That will stretch your calves and your hamstrings.