The Claim
Protein intake is associated with skeletal muscle mass gains in older women undergoing resistance training, with a correlation coefficient of r = 0.23, indicating that protein intake explains a small portion of the variability in muscle mass changes.
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 older women doing resistance training, the amount of protein consumed is weakly related to changes in muscle mass, accounting for only a small part of the differences seen between individuals.
See the scientific wording
The association between protein intake and skeletal muscle mass gains in older women undergoing resistance training is modest, with a correlation coefficient of r = 0.23, indicating that protein intake explains only a small portion of the variability in muscle mass changes.
When older women lift weights, their muscles experience tension that triggers molecular signals to build new muscle proteins, but the ability to use dietary protein for this process is reduced because the signals that turn on protein building are weaker and the muscle repair cells respond less strongly than in younger people.
What the research says
1 studyThe study found that older women who ate more protein gained a bit more muscle, but protein alone didn’t explain much of why some women gained more than others — it’s just one small piece of the puzzle.
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.