The Claim
In older women, strength training exceeding 150 minutes per week is not associated with reduced all-cause mortality and may be associated with a non-significant increase in risk (hazard ratio 1.10), though this finding is based on few events and wide confidence intervals.
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.
Among older women, doing more than 150 minutes of strength training per week shows no reduction in the risk of death from any cause, and there is a small, statistically non-significant increase in risk observed, but the data are uncertain due to limited events and wide confidence intervals.
See the scientific wording
In older women, strength training exceeding 150 minutes per week is not associated with reduced all-cause mortality and may be associated with a non-significant increase in risk (hazard ratio 1.10), though this finding is based on few events and wide confidence intervals.
Doing a moderate amount of strength training builds muscle, which helps the body use sugar and fat better and lowers heart disease risk. Doing too much strength training causes repeated extreme spikes in blood pressure and stress hormones, which stiffens arteries and raises heart disease risk. This cancels out the benefits and may raise the chance of dying.
What the research says
1 studyFor older women, lifting weights a little bit each week helps them live longer, but doing it a lot more than 150 minutes a week doesn’t help any more—and might slightly raise the risk of dying, though we’re not sure because not many women did that much.
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.