The Claim
Resistance training performed three times per week for 24 weeks with eight exercises in three sets of 8–15 repetitions increases skeletal muscle mass in healthy, physically independent older women aged approximately 69 years.
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 healthy older women around 69 years old, doing resistance training three times a week for six months with eight exercises performed in three sets of 8 to 15 repetitions results in an increase in skeletal muscle mass.
See the scientific wording
In healthy, physically independent older women aged approximately 69 years, resistance training performed three times per week for 24 weeks with 8 exercises in 3 sets of 8–15 repetitions leads to measurable increases in skeletal muscle mass, providing a context for evaluating protein intake effects.
Lifting weights stretches and pulls muscle fibers hard, which turns on a molecular switch inside muscle cells that tells them to build more protein. This extra protein gets added to the muscle fibers, making them thicker and heavier over time.
What the research says
1 studyThis study showed that older women who did three weekly weightlifting sessions for six months built more muscle, just like the claim says. The protein part is extra info — the training itself worked.
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.