I know in many external arts you train your finger(tips) to be able to strike, full power. This generally involves conditioning and hardening the fingers. I was just curious, does anybody know of any way to train the fingers to be able to strike that is purely internal--none of the stuff that gets you terrible arthritis later on? Of course, I would never practice from what I get on the internet, but I was just wondering about an internal way to strengthen the fingers for striking.
Thanks,
T.S.