The Claim
Blood flow-restricted resistance exercise increases myonuclear number in type I muscle fibers by 18% in national-level powerlifters, while conventional resistance training shows no change.
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 top powerlifters do a special type of weight training that restricts blood flow, it makes their slow-twitch muscle fibers grow more cell nuclei by 18%, but normal weight training doesn't do this.
See the scientific wording
Blood flow-restricted resistance exercise increases myonuclear number in type I muscle fibers by 18% in national-level powerlifters, while conventional training shows no change.
What the research says
1 studyStudy: Type 1 Muscle Fiber Hypertrophy after Blood Flow–restricted Training in Powerlifters
The study tested the same training method on the same athletes and found exactly what the claim says: an 18% increase in muscle cell nuclei for the restricted blood flow group, while normal training did nothing.
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.