Interesting that you should bring up the "weight lifter trance", but of course it's not a trance, it IS a gathering of concentration to direct all strength and form to the task, as well as psyching up by imagining doing the lift. ("I CAN lift this!", former weight lifter speaking, here) In that regard, I do believe that the TV Hulk did just that a number of times when he was going "full out" on his strength. If you watch some of the super strength acts he performed (such as lifting the ball valve against the hydralics in Prometheus) this is what it appears he is doing. Taking a deep breath and really concentraiting, even to the "yell" that many weight lifters use to direct thier minds. He does the same thing in the car crusher scene in ODMM, as well.