DaMan, welcome to the wonderful world of "the art of peace."
Wait a minute.....
Anyway, I've never had any problems with those support muscles. I ran a lot of hills when I was fighting, and that helped strengthen my tibialis a lot. Also, I simply conditioned my bones and everything else was able to hang okay. Through the process of soft bag, heavy bag, rattan sticks, hardwood sticks, other shins, bottles, trees, bokken, light poles, fence posts, door frames, car bumpers, stop signs, bats, maglites, pipes, squat racks, barbells, and the thighs of assholes, I've managed to develop pretty strong lower legs, bone, muscle and tendon.
Remember that the tibialis anterior will not protect your tibia. Its set off to the side. You want to impact bone NOT muscle. Imagine that you want to strike your opponent with a bat. DON'T put muscle in front of that bat. The only way to protect your tibia is to condition it for what's to come. My tibia can splinter a 2X4, and I would never wonder if I hurt anything because I spent years making it that way. Use the body's ability to adapt, and condition the shit out of that little fucker.
Just make sure after you train it that you take care of it. Remember that its still part of your body, and is susceptible to swelling, clots, cracks, etc. So after training, treat it with temperature, analgesics, etc. Otherwise you'll hinder your progress. You'll be knocking over telephone poles in no time
