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 .
EFFECTS OF A HEAVY AND A MODERATE RESISTANCE TRAINING ON FUNCTIONAL PERFORMANCE IN OLDER ADULTS
Resistance training can improve strength and functional performance , but there is little information about the effect of training intensity on functional performance in older adults . The purpose of this study was to determine the effect of 12 weeks of heavy ( 80 % of 1 repetition maximum [ 1RM ] ) and moderate ( 60 % of 1RM ) resistance training on functional performance in healthy , inactive older adults , ages 60–74 years . Volunteer subjects were assigned r and omly to a control group ( CS  , n = 10 )  , heavy resistance training group ( HRT , n = 11 ) , or moderate resistance training group ( MRT , n = 12 ) and participated in 12 weeks of strength training , 3 times per week . Performance measurements included 1RM lower-body strength , chair-rising time , walking velocity , stair-climbing time , and flexibility . Significant differences between HRT and MRT were found for 1RM strength of the lower limbs after the training period . Functional performance improved similarly for both HRT and MRT after the training period . Functional performance can be improved significantly with either heavy or moderate resistance training , without significant differences in the effectiveness of the 2 training protocol
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 .