Myth 9: You Must Train To Failure
Premise
Don’t stop until your muscles stop is like a “No pain, no gain” mantra. Here’s another one: the only rep that counts is the one you can’t finish. In other words, you only stimulate growth by pushing a set to absolute full-rep failure–or beyond–via techniques like forced reps, partials or rest-pause. And thus, HIT zealots are born. This is a popular creed simply because its logic seems irrefutable. After all, if you stop short of failure, won’t you merely do what you were previously capable of doing and thus fail to stimulate growth?
Science
Researchers at the Australian Institute of Sport (Canberra) performed several studies that lead to the conclusion that for strength, doing one set per exercise to failure–and no more–is optimal. When it comes to growth, however, taking most sets to failure appears to be more effective. There is no direct evidence to support this, but research shows that when you do take all sets to failure and beyond with forced reps, growth hormone levels are significantly higher after workouts than when you stop just short of failure. Since GH is critical for muscle growth, it can be assumed that taking most sets to failure is your best bet.
Verdict
Don’t stop until your muscles stop is like a “No pain, no gain” mantra. Here’s another one: the only rep that counts is the one you can’t finish. In other words, you only stimulate growth by pushing a set to absolute full-rep failure–or beyond–via techniques like forced reps, partials or rest-pause. And thus, HIT zealots are born. This is a popular creed simply because its logic seems irrefutable. After all, if you stop short of failure, won’t you merely do what you were previously capable of doing and thus fail to stimulate growth?
Science
Researchers at the Australian Institute of Sport (Canberra) performed several studies that lead to the conclusion that for strength, doing one set per exercise to failure–and no more–is optimal. When it comes to growth, however, taking most sets to failure appears to be more effective. There is no direct evidence to support this, but research shows that when you do take all sets to failure and beyond with forced reps, growth hormone levels are significantly higher after workouts than when you stop just short of failure. Since GH is critical for muscle growth, it can be assumed that taking most sets to failure is your best bet.
Verdict
When training for strength, take just one set per exercise to failure–no more, no less. For muscle growth, take most sets to failure and beyond with the following tried-and-true Weider Training Principles: forced reps, cheat reps, drop sets, rest-pause and negative reps.
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