Serious adverse events were rare , and no serious events were reported to be directly related to the exercise programme .
This review provides evidence that PRT is an effective intervention for improving physical functioning in  older people , including improving strength and the performance of some simple and complex activities .
BACKGROUND Muscle weakness in old age is associated with physical function decline .
Progressive resistance strength training ( PRT ) exercises are design ed to increase strength .
OBJECTIVES To assess the effects of PRT on older people and identify adverse events .
Comparison of once-weekly and twice-weekly strength training in older adults
Background : Strength training has been shown to benefit the health and function of older adults . Objective : To investigate whether one set of exercises performed once a week was as effective in increasing muscle strength as training twice a week . Methods : 18 subjects ( 7 women and 11 men ) aged 65–79 years were r and omly assigned to two groups . Both groups performed one set of exercises to muscular fatigue ; group 1 trained 1 day/week and group 2 trained 2 days/week on three lower and three upper body exercises for 9 weeks . The data were analysed using a mixed model 2 × 2 analysis of variance . Results : A significant main effect of time ( p<0.001 ) , but not group , on one-repetition maximum scores was observed . No significant interaction was observed between time and group and therefore no difference in strength changes between training once a week versus twice a week after 9 weeks . Conclusions : One set of exercises performed once weekly to muscle fatigue improved strength as well as twice a week in the older adult . Our results provide information that will assist in design ing strength-training programmes that are more time and cost efficient in producing health and fitness benefits for older adults
Serious adverse events were rare , and no serious events were reported to be directly related to the exercise programme .
This review provides evidence that PRT is an effective intervention for improving physical functioning in  older people , including improving strength and the performance of some simple and complex activities .
BACKGROUND Muscle weakness in old age is associated with physical function decline .
Progressive resistance strength training ( PRT ) exercises are design ed to increase strength .
OBJECTIVES To assess the effects of PRT on older people and identify adverse events .