The Claim
In elite male weightlifters, low-load, high-repetition resistance training increases phosphorylation of p70S6K1 more than high-load, low-repetition resistance training, independent of changes in AKT or mTOR signaling.
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.
In elite male weightlifters, performing many repetitions with light weights increases phosphorylation of p70S6K1 more than performing few repetitions with heavy weights, without changes in AKT or mTOR signaling.
See the scientific wording
In elite male weightlifters, low-load, high-repetition resistance training increases phosphorylation of p70S6K1—a key regulator of muscle protein synthesis—more than high-load, low-repetition training, independent of changes in AKT or mTOR signaling, suggesting an alternative pathway for hypertrophy.
When muscles are worked with light weights and many repetitions, the buildup of metabolic byproducts and sustained muscle activation turns on a protein called p70S6K1 without using the usual growth signals. This activated p70S6K1 speeds up the production of new muscle proteins, while another protein that slows down protein building gets turned off, allowing more efficient muscle growth and repair. The result is more muscle mass and strength without relying on the classic growth pathway.
What the research says
1 studyIn elite weightlifters, lifting lighter weights for more reps turned on a muscle-building signal (p70S6K1) more than lifting heavy weights, even though the usual growth pathway (mTOR) didn’t change — meaning muscles can grow in a different way than we thought.
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.