Warming up is important for safety reasons, but I'm not asking about that. I would like to know how much ‘psyching yourself up’ or being pumped with adrenaline affects an athlete's performance in strength activities.
Tom Boyle's example comes to mind. In his case, this weight lifter lifted half a 3,000-pound car off the ground, so as to save a trapped cyclist. He damaged his body as a result, tragically. The article doesn't go into extensive detail about how this was possible, and how much was related to adrenaline.
I would like to ask for more details on this subject. How big a role does adrenaline play in performance? Have there been tests measuring performance without warm-ups versus with warm-ups?