PRT had a large positive effect on strength ( 41 trials , 1955 participants ) , but there was statistical heterogeneity that was not explained by differences in study quality , participant characteristics or the exercise program .
REVIEW ER 'S CONCLUSIONS PRT appears to be an effective intervention to increase strength in older people and has a positive effect on some functional limitations .
However , the effect of this intervention on more substantive outcomes such as measures of disability or HRQOL remains unclear .
BACKGROUND Muscle weakness in old age , is associated with physical disability and an increased risk of falls .
Progressive resistance strength ( PRT ) training exercises ( i.e. movements performed against a specific external force that is regularly increased during training ) are design ed to increase strength in older people .
OBJECTIVES To assess the effect of PRT on measures of physical disability , functional limitation and impairment in older people  , and identify adverse events .
Exercise--it's never too late: the strong-for-life program.
OBJECTIVES This investigation determined whether an in-home resistance training program achieved health benefits in older adults with disabilities . METHODS A r and omized controlled trial compared the effects of assigning 215 older persons to either a home-based resistance exercise training group or a waiting list control group . Assessment s were conducted at baseline and at 3 and 6 months following r and omization . The program consisted of videotaped exercise routines performed with elastic b and s of varying thickness . RESULTS High rates of exercise adherence were achieved , with 89 % of the recommended exercise sessions performed over 6 months . Relative to controls , subjects who participated in the program achieved statistically significant lower extremity strength improvements of 6 % to 12 % , a 20 % improvement in t and em gait , and a 15 % to 18 % reduction in physical and overall disability at the 6-month follow-up . No adverse health effects were encountered . CONCLUSIONS These findings provide important evidence that home-based resistance exercise programs design ed for older persons with disabilities hold promise as an effective public health strategy
PRT had a large positive effect on strength ( 41 trials , 1955 participants ) , but there was statistical heterogeneity that was not explained by differences in study quality , participant characteristics or the exercise program .
REVIEW ER 'S CONCLUSIONS PRT appears to be an effective intervention to increase strength in older people and has a positive effect on some functional limitations .
However , the effect of this intervention on more substantive outcomes such as measures of disability or HRQOL remains unclear .
BACKGROUND Muscle weakness in old age , is associated with physical disability and an increased risk of falls .
Progressive resistance strength ( PRT ) training exercises ( i.e. movements performed against a specific external force that is regularly increased during training ) are design ed to increase strength in older people .
OBJECTIVES To assess the effect of PRT on measures of physical disability , functional limitation and impairment in older people  , and identify adverse events .