Weight training has long been associated with the adage 'no pain, no gain.' But just how much pain is necessary to reap the benefits of weight training? According to fitness experts, the answer depends on your fitness goals.
Some trainers have advocated training 'until failure,' where you push yourself to the point where you cannot perform another repetition. Recent studies suggest that while this extreme approach may be beneficial for increasing muscle mass, it may not be necessary for improving strength.
