Using simplified models for the muscles, ligaments, and cartileges, do you think that it's feasible to construct a scientific model for all of the interactions of motion that occur in the human body in order to calculate optimal transmission of force whilst moving, striking, and evading? Given the relatively primitive state of sport science even for top level athletes, I assume that this is akin to building a weather model that takes into account all the variables. It seems to me that there are only a limited number of components and joint types, each with their own range of movement, so it shouldn't be THAT difficult for people who know what they're doing... To what degree is it possible to examine and prove the deliterious effects of certain movements, such as deep knee bends, classical sit ups, and knuckle push ups upon the body? I ask because I'm a karate instructor with a large web site, and I have a strong intuition that the way in which karateka train and move (not counting actual combat) is extremely bad for their long-term health. That being the case, I'd very much llike to develop better ways of training that are beneficial to my students and myself. Many thanks in advance.