Parkmaverick
Striker
52. I'm not exactly slim, being XL size, but could stand to lose just a few pounds rather than stones. I still have long term effects from the brain virus I contracted the other year, though, as well as the arthritis, and having had an undiagnosed broken kneecap last year (the doc said it was ligaments and it was only an x-ray that discovered the break). With all that in mind, all I can do now is walking exercises and sports and some swimming.
Mt knee has been goosed sine my late 20's I'm now 54 still ok but its due to the fact I cycle pretty much everywhere - with no lycra. Might be something for you to consider depending on what cycle paths you have nearby.