I started climbing when I was 50 (10 years ago) and am also very fit for my age. Since you're fit and motivated your climbing muscles will develop a lot faster than tendon strength. This will put an extra amount of stress on your finger/hand tendons - especially on small crimpers and things like campus boards. I went that route and tore tendon pulleys in my ring fingers on both hands 2-3 times. It took several years for the tendon strength to catch up to muscle strength. So a word to the wise...
If you have to use a training aid (again, just climbing is better at this point), then use something that is really tendon friendly like Rock Rings.
(This post was edited by naitch on Jul 16, 2011, 12:23 PM)
Post edited by naitch
() on Jul 16, 2011, 12:23 PM