Sadly i am not a hyuuga. (but i'll make a hyuuga bio, when i have a little more experience.) Taijutsu is close combat, taijutsu is a general expression, for close combat without the use of chakra, it is ofcourse possible, to make your taijutsu stronger, by adding chakra to it, but unlike ninjutsu, you don't have to use chakra, to perform Taijutsu.