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 .
Strength versus muscle power-specific resistance training in community-dwelling older adults.
BACKGROUND Loss of muscle power due to normal aging has greater functional impact than loss of strength alone . The present study compared two resistance training programs , one aim ed at enhancing muscle power and one at increasing muscle strength , on muscle function and functional performance in older adults . METHODS Sixty-seven healthy , independent older adults ( 65 - 84 years ) were r and omized to a high-velocity varied resistance ( HV ) , constant resistance ( ST ) , or nontraining control ( CO ) group . Participants trained twice weekly for 24 weeks using six exercises .  Dynamic and isometric muscle strength , muscle power , movement velocity , muscle endurance , and a battery of functional performance tasks were assessed . Secondary outcomes included body composition , quality of life , and balance confidence . RESULTS Muscle strength increased significantly ( p < .001 ) and similarly in the training groups compared to controls ( HV , 51.0 + /- 9.0 % ; ST , 48.3 + /- 6.8 % ; CO , 1.2 + /- 5.1 % ) . Peak muscle power also increased with training ( p < .05 ) , with no difference between training groups . The change in peak power was 50.5 + /- 4.1 % , 33.8 + /- 3.8 % , and -2.5 + /- 3.9 % in the HV , ST , and CO groups , respectively . Training also improved selected functional performance tasks in the HV and ST groups compared to controls ( p < .05 ) , and the HV group reported improved quality of life ( p = .018 ) . CONCLUSION Muscle power and muscle strength improved similarly using either resistance training protocol , and these changes were accompanied by improvements in several functional performance tasks . However , improvements in the HV group occurred with less total work performed per training session
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 .