The Claim
When resistance training dosage is held constant, training frequency, sex, and age have limited influence on muscle strength gains, while total training volume and duration are more important determinants of muscle strength gains.
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 people do the same total amount of resistance training, how often they train, their sex, or their age does not strongly affect how much stronger they get; what matters more is the total volume and duration of training.
See the scientific wording
Training frequency, sex, and age have limited influence on muscle strength gains when resistance training dosage is held constant, suggesting that total training volume and duration are more important than demographic factors.
When muscles are repeatedly pulled with enough force over enough time, the muscle fibers grow thicker and become better at generating force, no matter how often the training happens, how old the person is, or whether they are male or female.
What the research says
1 studyWhether you're young or old, male or female, or train twice or three times a week doesn't change how much stronger you get as much as how much total work you do—once you hit a certain amount of training, more doesn't help, and who you are matters less than how much you train.
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.