I usually warm up, then progress to heavy, Then afterward i do burnouts with lighter weight. I try to do this on every exercise. I just dont feel I'm working out right if I dont feel a good burn on every exercise. IF i work out 5-6 times per week is that considered overtraining? I would work out daily if i thought I would get stronger from it. Could my body get used to that intense training if i did it consistently for a few months. I love to lift, and I dont understand the whole overtraining concept. I'm always sore the next day, It's the only way I feel I'm really working hard.
The burn is no indication of a good or bad workout. Sometimes it happens; sometimes it doesn't. Measure training quality by results, not random physiological responses.
Most lifters tend to train 3-4 days a week. That's not to say you can't train 5-6 days, as this really depends on what you're doing. A lot of programs will call for 5-6 days a week, though they're usually brief. Generally speaking (remember, I said generally..), if you're training for mass and doing it properly and intensely then 5-6 days/week for a beginner-novice (and maybe even an experienced lifter) will be too much to handle for a long period of time.
Sorness is also no indication. Sometimes it takes days to feel the soreness from training. Some muscles don't get as sore as others; my calves, for instance, never feel sore...even if I brutalize to the point that I'm limping out the gym...by the next day they're fine.
My guess is you do a lot of isolation work. If you're doing primarily or exclusively compound lifting you probably won't want to workout 5-6 days a week. I did a block training program that had me squatting 4-5 days a week on top of all sorts of other compound lifts, and I was wrecked from that.
Keep in mind: if you're training too much you WON'T get stronger. Bodybuilding is very ironically one of those sports where LESS IS MORE. I was overtraining recently with subsuquent 6 day/week programs (was too much with work, travel, girlfriend, etc) so I cut down to a 3 day full body split to give myself more free time out of the gym. ALL OF MY LIFTS HAVE GONE UP. In fact, by the second day I was lifting 10-20 lbs more on major lifts.
Don't underestimate the value of rest. You may enjoy lifting, but wouldn't you enjoy it more if you were seeing progress? Hell, I would love to pretty much live at my gym. We all love the feeling of being surrounded by all that iron and testosterone and throwing aroun some barbells. But, when you restric yourself to only 2-4 days a week when you DO get to go you're so much more motivated and rested. You'll have more energy and hunger to lift. It's like unleashing a starved pitbull into a butchers shop.
My guess is that you're crossing the line of providing enough stimulus for growth and impacting recovery.
Once you've hammered a muscle group with 40-60 "contractions" you've provided enough stimulus. Anything more and you're beating yourself up.
So for example, a healthy chest workout could be:
Flat Bench: 4 x 6-8
Incline DBs: 3 x 10-12
Add in some flys, dips, decline bench, pushups...well, you're screwing yourself.
KY
Thought I'd add that, while you're generally right, this would all depend on intensity. If I did 5 x 5 @ my 30 RM that's not very intense. Obviously that's an over-simplication for argument sake, but all I'm saying is that how much of a toll a workout takes depends on more than sets, reps, and time elapsed.
Some people spend 2 hours in a gym and do 1/4 of the work that other lifter did in their 20 minutes in the power cage.
Quality is a very subjective word.