Older adults who lift weights more frequently or do more sets will get stronger in their legs than those who do fewer sets. This finding is from the abstract summary - full study details were not available
Claim Context
Moderate and high-volume resistance training protocols are more effective than low-volume programs for enhancing lower-limb muscle strength in older adults, as indicated by superior performance in knee extension and leg press one-repetition maximum tests, demonstrating that increased weekly training volume is necessary to maximize neuromuscular strength adaptations in this demographic.
“Both MVRT and HVRT were the most effective for improving lower-limb strength, while only HVRT was effective in increasing fast walking speed (0.40 SMD, 95% CI: - 0.57 to 0.14).”
Evidence from Studies
No evidence studies found yet.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
A rigorous systematic review would consolidate evidence on volume-strength relationships, quantifying the exact dose-response curve for 1-RM improvements across different training frequencies and set counts.
A systematic review and meta-regression of 80+ RCTs comparing low, moderate, and high-volume resistance training in adults 60+, analyzing dose-response relationships for knee extension and leg press 1-RM, controlling for exercise selection, tempo, and progression protocols.
A controlled trial would isolate the causal impact of volume on neural and muscular strength adaptations by standardizing exercise selection and progression while manipulating only set frequency.
A parallel-group RCT with 300 older adults aged 65-75, randomized to low-volume (1 set), moderate-volume (2 sets), or high-volume (3 sets) of identical lower-body exercises performed 2x/week for 16 weeks, with primary outcomes of 1-RM leg press and knee extension torque measured via dynamometry.
A longitudinal cohort would track how naturally occurring variations in training volume correlate with long-term strength maintenance or decline in community-dwelling seniors.
A 3-year prospective cohort study of 1,200 older adults tracking self-reported resistance training volume via fitness app data, with biannual assessments of lower-body 1-RM strength, grip strength, and functional mobility tests.
A cross-sectional analysis would provide immediate data on the correlation between current training volume and current strength metrics, useful for identifying high-volume practitioners with superior strength.
A cross-sectional survey of 800 older adults measuring weekly resistance training volume, current leg press 1-RM, knee extension isometric strength, and lower-body muscle cross-sectional area via ultrasound.