You want to good failure not bad failure. Here's how-Originally Posted by asvt
Let’s pretend you are doing a set of incline bench presses. You lay back on the incline press and crank out one, two, three¸ four, and five reps. You get to rep number 6 and your face begins to show some pain. Those standing around you think you’re finished but you get rep number 7. Surely you are finished they are thinking, but you use sheer will-power to lift the weight to complete number 8 while still avoiding momentary failure. You try for rep number 9 and have to bounce the weight hard off your chest in order to get the barbell up on your own and you just barely make it at that. The set should have been terminated after the completion of rep number 8! Repetition number 8 is what I consider good failure and repetition number 9 is what I call bad failure. Simply said, you continue lifting until you know that if you attempted the get the last rep you couldn’t without severely draining the nervous system and using bad form!
Your goal as a bodybuilder is not to avoid training to failure; it’s to avoid training to the wrong kind of failure. The ideal situation is to reach as close to muscular failure as possible, but in a way that will induce maximum stimulus to the muscle fibers without causing injury or impairing the Central Nervous System. I call this good failure because it is the absolute best way to train for maximum size.