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 .
Impact of a home-based walking and resistance training program on quality of life in patients with heart failure.
Patients with heart failure ( HF ) often have profound activity limitations and diminished quality of life ( QOL ) due to symptoms of dyspnea and fatigue . Although recent studies demonstrate positive physiologic and psychological benefits of low to moderate intensity , supervised , aerobic exercise training performed 3 to 5 days/ week for 20 to 40 minutes ' duration , in a monitored setting , the efficacy of a home-based exercise program combining endurance and resistance exercise on symptoms and QOL , are unknown . This r and omized controlled study examined the efficacy , safety , and adherence rates of a 3-month home-based combined walking and resistance exercise program on symptoms and QOL in 40 women and men aged 30 to 76 years with New York Heart Association class II to III HF . Baseline and 3-month evaluations consisted of a chronic HF question naire to assess symptoms and QOL and exercise capacity by symptom-limited treadmill exercise test with respiratory gas analysis . The exercise intervention improved fatigue ( p = 0.02 ) , emotional function ( p = 0.01 ) , and mastery ( p = 0.04 ) . Overall exercise adherence was excellent ( 90 % ) and there were no reported adverse events . A moderate intensity home-based combined walking and resistance program for patients with class II to III HF is safe and effective in reducing symptoms and improving QOL
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 .