This is sort of a waste of a post, since it's such a narrow fielded question, but anyway.. I use a machine for Military Presses. I basically sit down on a chair and the machine is one of those with a regular sized BB that has hooks on it that you can hook on by twisting the bar forward, so it pretty much acts as a safety device. My question is, how much does that bar weigh? It's like a regular 45lb sized bar, but I wonder if I am still lifting 45 pounds with it?