I guess so.
however, is there a point where VERY hard work is detrimental?
That is an interesting question. I know as one advances intensity takes on a different meaning. I know pro athletes who got to that point by doing more work than just about everyone else. Once he got to that level the intensity was different.
Meaning that sprints were much more fatiguing than they were previously, simply because he was a lot faster. The same was true for strength training. Most lifts were well over 600lbs. This automatically decreases the volume one can train with at higher percentages.
For instance a 200lb bencher may be able to get 5 reps with 90% or 180 lbs. For a 600lbs bencher that 90% is now 540lbs. The reality of getting 5 reps at that weight is a lot less than the 200lb bencher.
I have known 700lb benchers who can't do 405 lbs 5 X. So things do change as the lifter moves up in ability.
At the same time here are a couple of other stories. The first is.
I know a guy who deadlifted 400lbs 26X, passed out into his fireplace, Woke up to his training partner throwing water on him, got up and finished workout.
Story 2.
I had a training partner who became a pro BB. Sponsored by supplement companies, the whole 9. Just about every workout he would get to the point where he threw up. He would walk out to the sewer grate outside, chuck down it, come back in and finish the workout.
The two above stories are pretty extreme, but both people achieved their goal of lifting (or BB) becoming their profession.
in the past, i have pushed been pushed far enough as to black out(wrestling)
Sweet!!!
Also, i have pushed myself far enough to have to lay down after my last set, trying to catch my breath for 10 minutes, too sick to drink pwo, feeling terribly nawshus(sp)
That is "a day in the life of" for a lot of people. Sometimes that is how workouts end.
I have always believed that one gets sick, blacks out, or have other symptoms like that simply because they are not in good enough shape yet. If the workouts continue, over the next few months the generally conditioning level raises to where your body is ready for that kind of work, and the symptoms subside.
A lot of people jump into hard training programs before they are in good shape. (wrestling is one of those sports where, when you start, you are generally completely unprepared) So you get crushed in the beginning. The same with 2 a days in football. or 4:30am conditioning times. It is a period where the goal is to get in good enough condition, mentally and physically, to effectively play the game.
I think that a lot of people worry about over training so much that they never let themselves get used to a higher training intensity, they start taking time off, or training less days, before the body has time to adapt to the new level of training.
I think it also becomes an excuse for people who do not want to do the proper amount of work.
but my doctor and my mother advised me to "learn your own limits and dont push yourself too far"
You can only learn what kind of person you are by pushing farther.