One more point I'll mention. Examine the term, "You have to walk before you can run." This is a perfect quote for this discussion. Walking basically is the same as running, just at a very slow pace. So over time, you keep walking faster and faster until you start running!" Same exact thing in this case, metaphorically speaking. A beginner should start off with very light weighted compound exercises, working on form and strengthening their musculature. Over time, more weight gets added to the bar (now they're starting to jog) and before you know it... A few years later they're benching 200 lbs (full sprint). If you examine what I said, those proportions are correct. If we did it your way, we'd have the novice doing some leg extensions, leg curls, and riding the recumbant bike to get him ready to start running.... That's extreme I know, but I'm making a point.