45 minutes workout then get out of the gym...

Bodybuilding - The Workout The workout should last no longer than 45 minutes! Plan your rest between sets accordingly so that you finish in this time period. Studies have shown that after 47 ? minutes of intense weight training, your cortisol levels shoot up. This means that the longer you workout AFTER 47 minutes, the LESS results you will get and the more likely you will overtrain. So get in the gym, lift hard, stay focused, and get out. The most important thing is that you lift to absolute FAILURE! This is not an option. It is almost 100% necessary to have a workout partner. If you need to get 8 - 10 reps, choose a weight that allows you to get 8 - 10 reps? but not even ONE more. I am serious! Once you reach your last rep, you should not be physically able to do another one, no matter what. If Britney Spears promises to date you if you get one more, it wouldn't matter. You should NOT be able to do it. Only you can judge if you are truly putting all possible effort into each set. Unlike programs where you are doing 4 or 5 sets per exercise, you only have one chance to blast your muscles. Don't waste it! Perform each set with good form. Cheating will only hurt your gains. Do each rep slowly and do not use momentum. Each rep should use a full range of motion and take approximately 2 seconds on the way down and 2 seconds on the way up. Do not "jerk" the weight up. Slowly move it up and down. Use lighter weight if you must. This is VERY important to your gains so don't ignore this! Do not stop moving during any part of your set. Some people will go all the way down on squats, then come back up and lock their knees, rest for a second or two, then go back down. Do NOT do this or you will be making Baby Jesus cry. You should stay in constant motion without locking out on any exercise. Do not stop at the bottom of your bicep curls or any other exercise. Again: Keep moving for the whole set and do not lock out your arms or legs.