The Claim
In single-set resistance training, training to muscular failure may be associated with slightly greater increases in muscle hypertrophy of the biceps brachii, triceps brachii, and quadriceps femoris compared to training with two repetitions in reserve, although the absolute differences are modest and not consistently statistically significant.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Going all the way to muscle exhaustion during one set of strength training might give you a tiny bit more muscle growth in your arms and legs than stopping two reps early — but the difference is small and not always clear.
See the scientific wording
Training to failure in single-set resistance training may be associated with slightly greater increases in muscle hypertrophy of the biceps brachii, triceps brachii, and quadriceps femoris compared to training with two repetitions in reserve, though the absolute differences are modest and not consistently statistically significant.
When muscles are pushed to complete fatigue, more muscle fibers are activated and stretched under heavy load, which triggers stronger signals for building new muscle protein.
What the research says
1 studyThis study found that lifting weights until you can't do another rep might give you a tiny bit more muscle growth in your arms and legs than stopping two reps before failure — but the difference is so small it’s not always clear or important.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.