As I walk over to the stadium this morning for our conditioning test (which I'm about to destroy I might add) I enthusiasticly read the comments to my last post. I will try to answer all your questions in the best way possible that follows the new criteria for my posts. So here we go...
The best way to defend yourself against injury is by fast feet. Our technique as O Lineman, in short, is butt down, feet apart, hands in chest. But those feet never stop moving. They need to move rapidly because in our position the frequency of someone falling into your knees is extremely common.
Not only that but the Offensive Line is mandated to wear our knee braces. My knee braces have definitely, on more than one occasion, saved major injury. There is nothing like a Erik Robertson/ Mebane battle and either one of them tries to plant a foot for leverage not realizing its into your calf or side of the knee. Or how about a Power play where Alex Mack drives the backside D Tackle into the Tackle. Its very common.
Other than that, injuries are very common for an Offensive Lineman. Playing the sport feeling a 100 percent is very unlikely. You are almost always playing Saturdays with small injuries. The sad thing about it all is there is no real way of defending against all injuries. You have to go out there with the mindset that if you play harder than the rest and keep your feet moving, your chances are less likely of getting injured. Which in my experience, holds true. The mindset of Kill or BE Killed comes to mind... Woo! Go Bears!