<p>my H hasn’t had a knee replacement- but he did have a couple screws put in, after his 40 year old body, thought he could go over a jump that as a 20 year old wouldn’t be a problem </p>
<p>I have some problem with my knees, but I always have- genetically I have very loose ligaments & have to train to build the muscle to support them ( I also dont run)
low impact sports however- don’t bother me.
I really want to take up rowing, I am encouraged by those in their 80s who are still competing 
<a href=“http://www.phillyburbs.com/pb-dyn/news/281-08092006-695424.html[/url]”>http://www.phillyburbs.com/pb-dyn/news/281-08092006-695424.html</a></p>