
Training to failure slows your results, say Spanish researchers. They found that lifters who performed each set of a workout until they couldn’t complete a repetition had smaller gains in strength than those who left a bit in reserve. End each set when your lifting pace starts to slow, suggests Men’s Health fitness advisor Mike Robertson, C.S.C.S.
Why it works: As your muscles fatigue, they use fewer fast-twitch fibers, which have the greatest potential for size and strength gains. Using a weight that allows you to finish all of your repetitions will focus your training where it counts the most—on those fast-twitch fibers.
Read more: http://www.menshealth.com/mhlists/lift-smarter/gains-plateaued.php#ixzz1CZnPEVR9