In older women, strength training alone can improve strength, balance, and endurance even without noticeable muscle growth, showing that the nervous system’s ability to use muscles more efficiently plays a key role in physical function.
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.
Whether resistance exercise improves functional performance in older adults without muscle mass gain across diverse populations, and whether neuromuscular efficiency is a consistent mediator.
A systematic review and meta-analysis of RCTs in adults aged 65+ comparing resistance training to control, with pre- and post-intervention measurements of muscle mass (DXA) and functional outcomes (TUG, chair stand, grip strength), stratifying results by change in muscle mass.
Whether resistance exercise improves functional performance in older women without increasing muscle mass, and whether this is mediated by neural adaptations.
A double-blind RCT with 150 healthy women aged 65–75 randomized to resistance training (3x/week, 12 weeks) or control; primary outcomes: muscle mass (DXA), functional performance (TUG, chair stand, step test), and neuromuscular efficiency (EMG amplitude during submaximal contractions); secondary: motor unit recruitment patterns.
Whether long-term resistance training in older women predicts sustained functional improvements independent of muscle mass changes over 5 years.
A prospective cohort study following 400 women aged 65+ for 5 years, measuring resistance training frequency, muscle mass (DXA), and functional performance annually, analyzing whether functional gains persist in those with stable or declining muscle mass.
Whether older women with high functional performance but low muscle mass are more likely to have a history of resistance training than those with low function and low muscle mass.
A case-control study comparing 100 women aged 75+ with high function (TUG <8s) and low muscle mass (<22kg) to 100 with low function (TUG >12s) and low muscle mass, assessing their 10-year resistance training history.
Whether current resistance training is associated with better functional performance in older women even when muscle mass is similar.
A cross-sectional study of 800 women aged 65–80 measuring resistance training frequency, muscle mass (DXA), and functional performance (TUG, chair stand), analyzing whether training status predicts function after adjusting for muscle mass.