The Claim
Resistance training with very high repetitions (above 35) produces muscle hypertrophy comparable to moderate rep ranges when performed to volitional failure.
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.
When resistance training is performed to complete muscular fatigue, sets with more than 35 repetitions result in the same amount of muscle growth as sets with moderate repetitions.
See the scientific wording
Resistance training with very high repetitions (above 35) produces muscle hypertrophy comparable to moderate rep ranges when performed to volitional failure.
When muscles are worked with light weights until exhaustion, the buildup of metabolic byproducts and sustained muscle tension turn on a molecular switch that tells the muscle to make more proteins. This switch keeps running for hours, and special repair cells in the muscle are activated to add new nuclei, allowing the muscle fibers to grow larger over time.
What the research says
2 studiesThis study found that lifting light weights until you can't do another rep builds muscle just as well as lifting heavy weights to failure — even though you have to do many more reps. So yes, doing lots of reps with light weights can make your muscles grow just like heavier lifts.
Even if you lift very light weights and do a lot of reps until you can't anymore, you can still build muscle just as well as lifting heavier weights for fewer reps — as long as you push yourself to the limit.
Related videos
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.