No there is not seperate techniques, that’s the beauty of Jiu-Jitsu that’s what makes it such a proven effective Martial Art.  There are no techniques that we teach that are size and athleticism specific.  We teach the same techniques to the 7 year old girl that we do to the 21 year old division one wrestler, to the 70 year old grandparent.  Because none of the techniques we teach need athleticism, everything we teach is based off of leverage, and knowledge and logic.