PRT results in improvements to muscle strength and some aspects of functional limitation , such as gait speed , in older adults .
However , based on current data , the effect of PRT on physical disability remains unclear .
Further , due to the poor reporting of adverse events in trials , it is difficult to evaluate the risks associated with PRT
BACKGROUND The aim of this systematic review was to quantify the effectiveness of progressive resistance strength training ( PRT ) to reduce  physical disability in older people .
The effects of resistance training on well-being and memory in elderly volunteers.
OBJECTIVE To determine the short- and long-term effects of resistance training on muscle strength , psychological well-being , control-beliefs , cognitive speed and memory in normally active elderly people . METHODS 46 elderly people ( mean age 73.2 years ; 18 women and 28 men ) , were r and omly assigned to training and control groups ( n=23 each ) . Pre- and post-tests were administered 1 week before and 1 week after the 8-week training intervention . The training sessions , performed once a week , consisted of a 10 min warm-up phase and eight resistance exercises on machines . RESULTS There was a significant increase in maximum dynamic strength in the training group . This training effect was associated with a significant decrease in self-attentiveness , which is known to enhance psychological well-being . No significant changes could be observed in control-beliefs . Modest effects on cognitive functioning occurred with the training procedure : although there were no changes in cognitive speed , significant pre/post-changes could be shown in free recall and recognition in the experimental group . A post-test comparison between the experimental group and control group showed a weak effect for recognition but no significant differences in free recall . Significant long-term effects were found in the training group for muscular strength and memory performance ( free recall ) 1 year later . CONCLUSION An 8-week programme of resistance training lessens anxiety and self-attentiveness and improves muscle strength
PRT results in improvements to muscle strength and some aspects of functional limitation , such as gait speed , in older adults .
However , based on current data , the effect of PRT on physical disability remains unclear .
Further , due to the poor reporting of adverse events in trials , it is difficult to evaluate the risks associated with PRT
BACKGROUND The aim of this systematic review was to quantify the effectiveness of progressive resistance strength training ( PRT ) to reduce  physical disability in older people .