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 .
The impact of nutritional supplementation and resistance training on the health functioning of free-living Chilean elders: results of 18 months of follow-up.
Body composition changes and loss of functionality in the elderly are related to subst and ard diets and progressive sedentariness . The aim of this study was to assess the impact of an 18-mo nutritional supplementation and resistance training program on health functioning of elders . Healthy elders aged > or = 70 y were studied . Half of the subjects received a nutritional supplement . Half of the supplemented and nonsupplemented subjects were r and omly assigned to a resistance exercise training program . Every 6 mo , a full assessment was performed . A total of 149 subjects were considered eligible for the study and 98 ( 31 supplemented and trained , 26 supplemented , 16 trained and 25 without supplementation or training ) completed 18 mo of follow-up .  Compliance with the supplement was 48 % , and trained subjects attended 56 % of programmed sessions . Activities of daily living remained constant in the supplemented subjects and decreased in the other groups . Body weight and fat-free mass did not change . Fat mass increased from 22.2 + /- 7.6 to 24.1 + /- 7.7 kg in all groups . Bone mineral density decreased less in both supplemented groups than in the nonsupplemented groups ( ANOVA , P < 0.01 ) . Serum cholesterol remained constant in both supplemented groups and in the trained groups , but it increased in the control group ( ANOVA , P < 0.05 ) . Upper and lower limb strength , walking capacity and maximal inspiratory pressure increased in trained subjects . In conclusion , patients who were receiving nutritional supplementation and resistance training  maintained functionality , bone mineral density and serum cholesterol levels and improved their muscle strength
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 .