In what seems to be a never-ending pursuit to perfect the art of sculpting an inspiring physique, training to failure is a hot topic of the endless debates.

Some people will tell you that training to failure will hinder your progress, while others, claim that training to failure is the fastest and more efficient route to reach your weight-training goals.

Amid these debates, there is yet another group of experts – they seem to believe that training to failure has little to do with your weight-training goals or your muscle-building progress.

Rather, they note that training to failure simply means that you cannot complete a repetition using a proper form and without help - - a number of repetitions in succession represents a set.

Some research shows that taking one set to failure could help increase strength, but there is a limit – more than one set to failure does not provide any benefits - and can even jeopardize your strength gains.

Spanish scientists had 42 men train for 16 weeks either training to failure on all working sets or not training to failure on any working sets. Researches tested subjects’ strength and power, as well as their blood levels of the anabolic hormones insulinlike growth factor-1 (IGF-1), testosterone and the the catabolic hormone cortisol before training and after six, 11 and 16 weeks.

They reported in the Journal of Applied Physiology that both groups had similar increases in strength and power, but those who trained to failure had lower levels of IGF-1 while those who didn’t had higher levels of testosterone and lower levels of cortisol. - - via M&F.

In addition, training to failure does not seem to increase muscle growth. Still, other research seems to indicate that taking only the last set of each exercise to failure could help increase strength and muscle mass without overtraining.